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Vixen Camera Adapter 60 mm to M48

With BRESSER, you can enjoy a smooth introduction to the vast world of astronomy. Our detailed information ("Telescope Guide") provides valuable tips for beginners—but even experienced astronomers can use the information we provide (e.g., tables for the geographical latitude of all major world cities) as a reference.

Here is the table of contents of the comprehensive BRESSER Telescope Guide:

Sky Guides by Bresser

The Sky Guide provides comprehensive information on constellations, planetary positions, and astronomical events – perfect for planning your observations and delving deeper into astronomy.
Visit the guide directly here to make the most of your observations!

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Manufacturer: 
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact: 
www.bresser.de


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Accessories

Vixen M54 Adapter Ring
M54 Adapter Ring for adapting to 54 mm accessories (for use with the 60 mm to M48 camera adapter)Replace the inner ring of the 60 mm to M48 camera adapter (optional) to attach cameras or accessories with a 54 mm internal thread (M54 × 0.75). Ideal for full-frame CMOS cameras: When shooting with a full-frame sensor or a CMOS camera, the larger diameter helps minimise vignetting.With the optional M56 Filter Conversion Adapter 48/52, you can use standard 48 mm / 52 mm photographic filters. Note:When using the M56 Filter Conversion Adapter 48/52, the PH corrector, PH extender, Coma Corrector 3 and SDP Reducer cannot be used.  FEATURES Telescope-side connection (female): M56 × 0.75 (for filter mount/adapter ring) Camera-side connection (male): M54 × 0.75 Compatible with: 60 mm to M48 camera adapter Not usable with: Wide Photo Adapter 60DX and Wide Photo Adapter 60 mm Dimensions: Ø 68 × 12 mm Weight: 23 g SCOPE OF DELIVERY Vixen M54 Adapter Ring

Currently not available

£39.00*
Vixen Telescope SDP65SS Astrograph
The Vixen SDP65SS is a compact astrograph that delivers exceptional imaging quality at a more accessible price than the VSD telescope series. Designed specifically for astrophotography, this telescope features a four-element, four-group optical system incorporating both an SD (Super ED) lens and an ED (Extra-low Dispersion) lens. The result is outstanding image performance comparable to that of the VSD series. Thanks to its compact size and retractable dew cap, the telescope is an ideal travel companion for mobile astrophotographers. Purpose-built for astrophotographyThe SDP65SS has been purpose-built for astrophotography and features four elements made from SD glass, high-refractive-index ED glass and lanthanum glass. The arrangement of the lenses is optimised for maximum performance, significantly reducing axial chromatic aberration and achieving the same level of astigmatism correction as the VSD telescope series.Exceptional image field flattening The optimised arrangement of the four lenses made from SD and ED glass achieves an exceptionally flat image plane without the need for an additional flattening lens. It provides a high degree of correction and produces distortion-free star images across the entire 44 mm illuminated field of view. Minimal vignettingTo reduce vignetting, the light beam is narrowed at the final lens element.Thanks to the optical design, vignetting is virtually eliminated, ensuring excellent edge illumination with almost any camera system. Over 90% of the light is captured at the edge of a 35 mm full-frame sensor, reducing the need for extensive image processing afterwards. Newly designed focuserFocusing is achieved via a rack-and-pinion system that moves the lens assembly forwards and backwards. As the focuser body itself remains stationary, there is no tilting, even when using heavy accessories or cameras. A built-in vernier scale provides a clear reference for focus position, marked in 0.1 mm increments. For even greater precision, an optional dual-speed focuser or a third-party ZWO EAF (electronic focuser) can be attached. Compact and lightweightMeasuring approximately 413 mm in length, or 359 mm with the dew cap retracted, the telescope is exceptionally portable—perfect for travel and field use.Optional reducer availableWith the optional SDP Focal Reducer 0.8x, the SDP65SS can capture images with a wider field of view and shorter exposure times. The focal length is reduced by a factor of 0.8, and the focal ratio decreases from f/5.5 to f/4.4.FEATURES Lens design: 4-group 4-element SD (Super ED) apochromat, multi-coated Aperture: 65 mm Focal length: 360 mm (F5.5) Resolving power: 1.78 arc seconds Limiting magnitude: 10.8 Light-gathering power: 86x Illumination: 44 mm to over 90% in the image corners Tube length / diameter: 413 mm (359 mm dew cap retracted) / 90 mm Eyepiece focuser: Internal focusing, rack-and-pinion with scale Adapter thread: 60 mm (P=0.75 mm), 42 mm for T-ring Visual back: 31.7 mm connection Solar observation: For solar observation, a solar projection screen set B and an eyepiece are required (not included) Weight: 2.6 kgSCOPE OF DELIVERY Vixen SDP65SS Dovetail slide bar 1/4 inch screws (L: 19 mm) x 2 pieces, Allen key (3 mm, 2 mm, 1.5 mm, 3/16 inch)

Available

£2,998.00*
Vixen VSD90ss Astrograph
Fast 90 mm high-performance astrograph for demanding astrophotographers and observers with 5 lens elements in 5 groups. Due to the complex optical structure with five lens groups and five elements (quintuplet), including two SD (Super ED) lenses and an ED lens (Extra-low Dispersion) , a virtually aberration-free optical system was created. This revolutionary astrograph is compatible with a full-frame digital DSLR or an even larger 44x33 mm camera. The 90 mm astrograph with fast aperture ratio delivers exceptionally sharp, high-contrast and small point stars from the centre to the corners of the field of view. In addition, it is also ideal for visual observation with a very large field of view but also for planetary observation with high magnification. The VSD90ss is designed so that there is a "long peak range" in the adjustment accuracy of the sharpness, so that photographers can always achieve satisfactory results in astrophotography. Even if the focus is not quite precise, round and sharp stars are still shown throughout the entire image field. Illumination without vignetting In most cases, an astrograph also produces optical vignetting (a gradual decrease in light rays towards the edge of the image) This is mainly caused by rear lenses being shaded by the front lenses. Because of this darkening, it is relatively normal for the photographer to have to further edit the image after taking the picture and also have to do some additional so-called flats before taking the picture. To solve this problem, the VSD90ss uses wide aperture lenses in the rear elements, securing over 90 % of the light volume at the edge of the 60 mm image circle. Since the light intensity is uniform throughout the entire image field of the VSD90ss, there is no need for complex technology to prevent edge darkening. The VSD90ss is coated with the most modern coatings of extremely high reflectivity. These coatings have been specifically developed to optimize the properties of each individual lens element without degrading contrast and light intensity across multiple lenses. Numerous gradations of light bring beautiful point-like stars into the image field The low optical vignetting ensures sufficient illumination and thus eliminates the asymmetric flare caused by bright, diffraction-limited stars. It prevents stars at the edge of the 60 mm image circle from exhibiting deformations such as comets, astigmatism or coma. Since the illumination of the image field is relatively similar from the center to the edge of the image, you can expect excellent star imaging. Please note: *Depending on the recording system used, mechanical vignetting can still occur due to the camera body or incorrect adapters. 96.7ï¼… Strehl for impressive visual observations The VSD90ss offers a flattened large field of view with a low magnification wide angle eyepiece. Even with a high-quality wide-field eyepiece with a large field of view, you can get sharp images of stars in the entire field of view when visually observing! In the centre of the field of view, a Strehl intensity of an impressive 96.7% is achieved at visible wavelengths. This Strehl ratio exceeds that of the SD81SII apochromat at 95.7%, which is known for its excellent optical properties, and this also works excellently when observing the moon and planets at high magnification. The versatile large and stable focuser The VSD90ss has a large focuser with a diameter of 87.5 mm to make optimal use of the large illumination field of 60 mm. With the large extension that is compatible with many accessories, it is perfect for astrophotography up to large format or 35 mm full frame DSLR cameras. Thanks to its precise manufacturing, it is also suitable for very heavy cameras without tipping. The precision locking lever of the eyepiece extension The focuser's extension tube has a locking lever that holds the extension tube firmly in position even when using heavy cameras such as large format cameras or CCD cameras with a large sensor. The locking lever clamps the rack gear to the extension barrel so that the viewing angle or focus on your camera does not shift. Compatible with motor driven focusers An optional two-speed motor focuser (not included) is available for the VSD90ss to provide sensitive focusing. An EAF (Electronic Automatic Focuser) from ZWO or equivalent can also be retrofitted. Optional VSD Reducer for even faster results The tried and tested optional VSD reducer, which was also used on the predecessor, the VSD 100, is also compatible with the VSD90ss. The photographer gets even faster results in astrophotography with an aperture ratio of 1:3.9. CHARACTERISTICS 90 mm aperture, 495 mm focal length (F5.5) Needle-fine stars up to the image field edge in 44x33 mm format 5 lens elements in 5 groups Image illumination up to 60 mm Resolution power: 1.29 Limit size: 11.5 Light gathering capacity: 165x Illumination: 60 mm Dimensions: 115 mm diameter x 600 mm length (476 mm length for storage) Weight: 4.3 kg Connections/Thread: Size thread/84 mm (pitch 1 mm), 60 mm (pitch 1.0 mm), 42 mm for T-ring push fit / 60.2 mm, 50.8 mm and 31.7 mm Solar observation: separately available solar projection approach B Optional VSD100 reducer compatible (opening ratio F: 3.9) SCOPE OF DELIVERY VSD90ss high performance astrograph

Available

£5,983.00*
Vixen VSD70SS F5.5 Astrograph Telescope
Fast 70mm high-performance astrograph F5.5 designed for demanding astrophotographers and observers, featuring 5 lens elements in 5 groups With its sophisticated optical design incorporating five lens elements in five groups (Quintuplet), including two SD (Super ED) lenses and one ED (Extra-low Dispersion) lens, this astrograph delivers a virtually aberration-free optical system. The convex lens utilises two SD lenses and a high-refractive ED lens, while the front lens is crafted from a newly developed high-performance lanthanum glass. Perfect for astrophotography and visual observation This revolutionary astrograph is compatible with digital full-frame DSLRs and even larger 44 x 33 mm cameras. With its fast F5.5 aperture ratio, the 70mm astrograph produces exceptionally sharp, high-contrast, pinpoint stars from the centre to the very edges of the field of view. Not only is it ideal for astrophotography, but it also excels in visual observation, offering a wide field of view for deep-sky objects and delivering stunning detail in planetary observation with high magnification. Consistently sharp imaging across the entire field The VSD70ss is designed with a long peak range in focus adjustment accuracy, making it easier for astrophotographers to achieve consistently outstanding results. Even if the focus isn’t set perfectly, stars remain round and sharp across the entire image field. The VSD70ss is very temperature-resistant so that you always keep a very stable focus point. Minimal vignetting for uniform illuminationMost astrographs experience some level of optical vignetting (light gradually diminishes towards the image edges). This is mainly caused by the rear lenses being shadowed by the front lenses. As a result, photographers often need to apply image corrections or capture additional flat frames beforehand. The VSD70ss tackles this issue with large-aperture lenses in the rear elements and preserves over 90% of the light all the way to the edge of its 55mm image circle. The result is uniform brightness across the entire field, eliminating the need for extensive post-processing to compensate for edge darkening. The VSD70ss features cutting-edge multi-coatings with exceptionally high reflectivity. These coatings have been specially designed to optimise the performance of each individual lens element, ensuring maximum contrast and light transmission without degradation across multiple lenses. Note: *Mechanical vignetting may still occur depending on the camera system used, particularly due to the camera body or incorrect adapters. 96.7% Strehl for stunning visual observations When paired with a wide-angle eyepiece with low magnification the VSD70ss offers a flattened large field of view. Even with a high-quality wide-field eyepiece with a large field of view, stars appear sharp across the entire field of view during visual observation. At the centre of the field, the telescope achieves an impressive 96.7% Strehl intensity at visible wavelengths—surpassing even the acclaimed SD81SII apochromat with its 95.7% Strehl ratio. This superior optical quality is also evident when observing the Moon and planets at high magnifications. Large, versatile, and stable focuser The VSD70ss has a large focuser with a diameter of 87.5mm to make optimum use of the large 55mm field of illumination. Designed to support a wide range of accessories, this large focuser is perfect for astrophotography, accommodating everything up to large-format cameras or 35mm full-frame DSLR cameras. Its precision manufacturing ensures excellent stability, preventing any tilting even when using heavy imaging equipment. Optional VSD reducer for even faster resultsThe new reducer has been specially developed for the VSD90ss and the VSD70ss. At a focal ratio of 1:3.9. the photographer gets even faster results in astrophotography. Compatible with motorised focusersTo enable sensitive focusing, an optional dual-speed motor focuser is available for the VSD70ss. Additionally, an EAF (Electronic Automatic Focuser) from ZWO or a compatible system can be retrofitted. FEATURES SD apochromat, 5-element/5-group, AS coating Aperture: 70mm Focal length: 385mm (F/5.5) Resolution: 1.66 Limiting magnification: 11.0 Light gathering power: 100x more than the eye Field of view: 55mm Tube dimensions: 444 x 90 mm (368mm retracted) Adapters/Threads: 84mm (P=1mm), 60mm (P=0. 75mm), 42mm (P=0.75mm for T-ring) Connections: 60.2mm, 50.8mm, 31.7mm Weight: 3.5 kgSCOPE OF DELIVERY VSD70ss Astrograph Adapter: 60.8mm to 50.2mm 1/4 inch screws (L: 9mm) x 2 Allen keys (3mm, 2mm, 1.5mm, 3/16 inch) Dovetail bar (Vixen standard)

Available

£4,998.00*
Vixen SD115SII Telescope OTA
The Vixen SD115IIS is a new 115 mm apochromatic refractor with high-performance Super-ED glass (= SD). The advantage of this SD refractor is its short length and low weight. The FPL53 glass reproduces an extremely clear and sharp image by an exceptionally high degree of elimination of residual chromatic aberrations. The SD glass is designed to bring all beams of violet, red, blue, yellow and green very precisely together on the same plane. The special lens material, reduces chromatic aberration across all colours.The new Vixen SD115SII no longer uses spacer plates, which leads to a significantly better image quality, especially with bright stars. In photographic images, no spikes can be seen on the stars, which were otherwise produced by the spacer plates. In addition, you will be thrilled when you look at the moon or the brighter planets and observe the moon craters pin sharp as well as with extremely high contrast. Also look at the ring planet Saturn or the cloud bands on Jupiter. But of course, brighter deep sky objects such as the Orion Nebula or the Andromeda Galaxy can also be observed in impressive detail.In combination with the new optional SD Reducer HD Kit or SD Flattener HD, this refractor allows illumination with a 44 mm image circle for full format SLR cameras. The older ED81SII, ED103S, ED115S refractors were originally developed for visual observers and photographers using APS-C cameras. However, the new SD series is also optimised for use with full-frame cameras through the use of new inner baffle rings. The large 60 mm eyepiece extension also allows heavy cameras to be attached without tilting. Furthermore, the included folding mirror allows comfortable observation even in unfavourable observation situations and additionally offers a T2 thread for connecting a DSLR camera. This allows you to observe in straight line or at a 90° angle. The carrying handle attached to the tube clamps ensures a secure grip when transporting the telescope. FEATURESObjective lens: D=115 mm, multi-coated 2-lens SD apochromat without spacer plates No more spikes on the stars Focal length: 890 mm (f7.7) Resolution and limiting magnitude: 1.01 arcseconds; 12.5 Light gathering power: approx. 270x more than the human eye Dimensions and weight: 125 mm dia x 920 mm; 6.3 kg Viewfinder telescope: 7x50 illuminated Adapters and connections: 60 mm thread, 50.8 mm and 31.7 mm socket, thread for T-ring Connection: 50.8 mm and 31.7 mm socket with flip mirror / folding mirror Photography: primary focus and eyepiece projection SCOPE OF DELIVERY Refractor SD115SII Telescope (OTA) Tube clamp with dovetail Dew cap Flip-Mirror / folding mirror Carrying handle Dovetail rail 7x50 viewfinder

Available

£2,898.00*
Vixen SD103SII Telescope OTA
The Vixen SD103SII Telescope OTA is a new 103 mm apochromatic refractor with high-performance Super-ED glass (= SD). The advantage of this SD refractor is its short length and low weight. The FPL53 glass reproduces an extremely clear and sharp image by an exceptionally high degree of elimination of residual chromatic aberrations. The SD glass is designed to bring all beams of violet, red, blue, yellow and green very precisely together on the same plane. The special lens material reduces chromatic aberration across all colours.The new Vixen SD103SII no longer uses spacer plates, which leads to a significantly better image quality, especially with bright stars. In photographic images, no spikes can be seen on the stars, which were otherwise produced by the spacer plates. In addition, you will be thrilled when you look at the moon or the brighter planets and observe the moon craters pin sharp as well as with extremely high contrast. Also look at the ring planet Saturn or the cloud bands on Jupiter. But of course, brighter deep sky objects such as the Orion Nebula or the Andromeda Galaxy can also be observed in impressive detail.In combination with the new optional SD Reducer HD Kit or SD Flattener HD, these refractors allow illumination with a 44 mm image circle for full format SLR cameras. The older ED81SII, ED103S, ED115S refractors were originally developed for visual observers and photographers using APS-C cameras. However, the new SD series is also optimised for use with full-frame cameras through the use of new inner baffle rings. The large 60 mm eyepiece extension also allows heavy cameras to be attached without tilting. Furthermore, the included folding mirror allows comfortable observation even in unfavourable observation situations and additionally offers a T2 thread for connecting a DSLR camera. This allows you to observe in straight line or at a 90° angle. The carrying handle attached to the tube clamps ensures a secure grip when transporting the telescope. FEATURESObjective lens: D=103 mm, multi-coated 2-lens SD apochromat without spacer plates No more spikes on the stars Focal length: 795 mm (f7.7) Resolution and limiting magnitude: 1.13 arcseconds; 11.8 Light gathering power: approx. 217x more than the human eye Dimensions and weight: 115 mm dia x 810 mm; 5.5 kg Viewfinder telescope: 7x50 illuminated Adapters and connections: 60 mm thread, 50.8 mm and 31.7 mm socket, thread for T-ring Connection: 50.8 mm and 31.7 mm socket with flip mirror / folding mirror Photography: primary focus and eyepiece projection SCOPE OF DELIVERY Refractor SD103SII Telescope (OTA) Tube clamp with dovetail Dew cap Flip mirror / folding mirror Carrying handle Dovetail rail 7x50 viewfinder

Available

£2,199.00*
Vixen SD81SII Telescope OTA
A new 81 mm apochromatic refractor with high-performance Super ED glass (= SD). The advantage of these SD refractors is their short length and low weight.The FPL53 glass reproduces an extremely clear and sharp image due to an exceptionally high elimination of residual colour errors. The SD glass is designed to bring all rays of violet, red, blue, yellow and green together very precisely on the same plane. Thus, the special lens material reduces chromatic aberration across all colours.The new Vixen SD81SII no longer uses spacer plates, which leads to significantly better image quality, especially with bright stars. This means that there are no more spikes on the stars in photographic images, which were otherwise produced by the spacer plates. You will be thrilled when you look at the moon or the brighter planets and observe the moon craters pin sharp and with an extremely high contrast. Observe the ring planet Saturn or the cloud bands on Jupiter.But of course, brighter deep sky objects such as the Orion Nebula or the Andromeda Galaxy can also be observed impressively.In combination with the new optional SD Reducer HD Kit or SD Flattener HD, this refractor allows illumination with a 44 mm image circle for full-frame SLR cameras.The older ED81SII, ED103S, ED115S refractors were originally designed for the visual observer or the photographer using APS-C cameras. However, the new SD series has been optimised for use with full-frame cameras by inserting new inner baffle rings.The large 60 mm focuser allows heavy cameras to be attached without tilting. The supplied flip mirror allows comfortable observation, even in unfavourable observation situations, and also offers a T2 thread for connecting a DSLR camera.Thus, observing in degree view or at a 90° angle is possible. The carrying handle attached to the tube clamps ensures a secure hold when transporting the telescope.FEATURESObjective Lens: D=81 mm, multi-coated 2-Lens SD Apochromat without spacer plates No more spikes on the stars Focal Length: 625 mm (f7.7) Resolution and visual limit: 1.43 arcseconds; 11.3 Mag Light gathering capacity: 134x unaided eyesDimensions and weight: 90 mm dia x 585 mm, 3.6 kg Finderscope: XY Red Dot Finder II Adapter and connections: Adapter thread 60 mm and 31.7 mm for T2-ringConnection 50.8 mm and 31.7 mm socket with flip-mirror diagonal mirrorPhotography: primary focus and eyepiece projection SCOPE OF DELIVERY Refractor telescope SD81SII Tube rings Flip mirror system Carrying handle Dovetail rail Red dot viewfinder

Currently not available

£1,349.00*
Vixen AX103S apochromatic Refractor - optical Tube
The AX103S is a top-of-the-range ED apochromat in the refractor series. It features a triplet ED object lens and a rear-mounted field-flattener lens. The f8.0 refractor contains a central ED lens in the objective and reduces chromatic aberration to an absolute minimum. An optional focal reducer can reduce the aperture ratio to 1:5.6 in order to provide quicker results for astrophotographers. The built-in field flattener lens provides a sharp image across the entire field of view – an essential requirement in astrophotography. The 60 mm ring on the focuser allows you to attach a 2’’ eyepiece or accessories and a camera adapter. The AX103S is specially designed for photography, but also offers stunning visual performance, especially for observing the moon and the planets. The AX 103S is corrected for full frame photography and provides razor-sharp pictures right into the corners of the image field. This telescope is guaranteed to provide a lifetime of outstanding performance! FEATURES Optimized for full frame photography Fully coated triplet ED objective with flattener Very high sharpness and contrast Optional reducer availableBackfocus without Reducer: 150.0 mmBackfocus with Reducer: 63,5 mm103 mm aperture and 825 mm focal length WHAT’S INCLUDED Telescope Tube clamps and carry handle Illuminated 7x50 viewfinder telescope Vixen's very useful Flip mirror diagonal system for finding and framing targets

Available

£2,999.00*
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Vixen M54 Adapter Ring
M54 Adapter Ring for adapting to 54 mm accessories (for use with the 60 mm to M48 camera adapter)Replace the inner ring of the 60 mm to M48 camera adapter (optional) to attach cameras or accessories with a 54 mm internal thread (M54 × 0.75). Ideal for full-frame CMOS cameras: When shooting with a full-frame sensor or a CMOS camera, the larger diameter helps minimise vignetting.With the optional M56 Filter Conversion Adapter 48/52, you can use standard 48 mm / 52 mm photographic filters. Note:When using the M56 Filter Conversion Adapter 48/52, the PH corrector, PH extender, Coma Corrector 3 and SDP Reducer cannot be used.  FEATURES Telescope-side connection (female): M56 × 0.75 (for filter mount/adapter ring) Camera-side connection (male): M54 × 0.75 Compatible with: 60 mm to M48 camera adapter Not usable with: Wide Photo Adapter 60DX and Wide Photo Adapter 60 mm Dimensions: Ø 68 × 12 mm Weight: 23 g SCOPE OF DELIVERY Vixen M54 Adapter Ring

Currently not available

£39.00*
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Vixen M54 Adapter Ring
M54 Adapter Ring for adapting to 54 mm accessories (for use with the 60 mm to M48 camera adapter)Replace the inner ring of the 60 mm to M48 camera adapter (optional) to attach cameras or accessories with a 54 mm internal thread (M54 × 0.75). Ideal for full-frame CMOS cameras: When shooting with a full-frame sensor or a CMOS camera, the larger diameter helps minimise vignetting.With the optional M56 Filter Conversion Adapter 48/52, you can use standard 48 mm / 52 mm photographic filters. Note:When using the M56 Filter Conversion Adapter 48/52, the PH corrector, PH extender, Coma Corrector 3 and SDP Reducer cannot be used.  FEATURES Telescope-side connection (female): M56 × 0.75 (for filter mount/adapter ring) Camera-side connection (male): M54 × 0.75 Compatible with: 60 mm to M48 camera adapter Not usable with: Wide Photo Adapter 60DX and Wide Photo Adapter 60 mm Dimensions: Ø 68 × 12 mm Weight: 23 g SCOPE OF DELIVERY Vixen M54 Adapter Ring

Currently not available

£39.00*
Vixen Focal Reducer V0.71x VSD90ss/VSD70ss
Focal length reducer for the VSD90ss and VSD70ss with two ED lenses designed for high-end astrophotographyThe two ED lenses maximise the photographic performance of the VSD90ss and the VSD70ss, which are designed for both photography and visual observation. The reducer can illuminate an image circle of 44 mm (suitable for a 34x36 full-frame format). The reducer has a very sophisticated design as it contains four elements in four groups, including 2 ED lenses. Thanks to its larger lens diameter, it offers significantly improved image illumination compared to its predecessor, the smaller V0.79x reducer. The star distortion at the edges is also reduced to an absolute minimum.The focal length of the VSD90ss telescope is shortened by about 0.71x and the focal ratio is reduced from 5.5 to 3.9. This results in a super-fast f3.9 astrograph, capable of fully illuminating a full-frame DSLR camera.FEATURES    Magnification: 0.71x    Focal length VSD90ss: from 495 mm (F5.5) to 351 mm (F3.9)    Illumination: 44 mm    Lens design: 4 elements in 4 groups, including 2 ED lenses    Coatings: AS coatings (99% light transmission per surface)    Connection thread: M84mm, pitch 1 mm (male thread)    Connection thread for a camera: M60 mm, pitch 0.75 mm    Filter thread: 60 mm diameterSCOPE OF DELIVERY    Focal Reducer V0.71x    2 mm Allen keys    Dust caps

Available

£1,249.00*
Vixen Telescope SDP65SS Astrograph
The Vixen SDP65SS is a compact astrograph that delivers exceptional imaging quality at a more accessible price than the VSD telescope series. Designed specifically for astrophotography, this telescope features a four-element, four-group optical system incorporating both an SD (Super ED) lens and an ED (Extra-low Dispersion) lens. The result is outstanding image performance comparable to that of the VSD series. Thanks to its compact size and retractable dew cap, the telescope is an ideal travel companion for mobile astrophotographers. Purpose-built for astrophotographyThe SDP65SS has been purpose-built for astrophotography and features four elements made from SD glass, high-refractive-index ED glass and lanthanum glass. The arrangement of the lenses is optimised for maximum performance, significantly reducing axial chromatic aberration and achieving the same level of astigmatism correction as the VSD telescope series.Exceptional image field flattening The optimised arrangement of the four lenses made from SD and ED glass achieves an exceptionally flat image plane without the need for an additional flattening lens. It provides a high degree of correction and produces distortion-free star images across the entire 44 mm illuminated field of view. Minimal vignettingTo reduce vignetting, the light beam is narrowed at the final lens element.Thanks to the optical design, vignetting is virtually eliminated, ensuring excellent edge illumination with almost any camera system. Over 90% of the light is captured at the edge of a 35 mm full-frame sensor, reducing the need for extensive image processing afterwards. Newly designed focuserFocusing is achieved via a rack-and-pinion system that moves the lens assembly forwards and backwards. As the focuser body itself remains stationary, there is no tilting, even when using heavy accessories or cameras. A built-in vernier scale provides a clear reference for focus position, marked in 0.1 mm increments. For even greater precision, an optional dual-speed focuser or a third-party ZWO EAF (electronic focuser) can be attached. Compact and lightweightMeasuring approximately 413 mm in length, or 359 mm with the dew cap retracted, the telescope is exceptionally portable—perfect for travel and field use.Optional reducer availableWith the optional SDP Focal Reducer 0.8x, the SDP65SS can capture images with a wider field of view and shorter exposure times. The focal length is reduced by a factor of 0.8, and the focal ratio decreases from f/5.5 to f/4.4.FEATURES Lens design: 4-group 4-element SD (Super ED) apochromat, multi-coated Aperture: 65 mm Focal length: 360 mm (F5.5) Resolving power: 1.78 arc seconds Limiting magnitude: 10.8 Light-gathering power: 86x Illumination: 44 mm to over 90% in the image corners Tube length / diameter: 413 mm (359 mm dew cap retracted) / 90 mm Eyepiece focuser: Internal focusing, rack-and-pinion with scale Adapter thread: 60 mm (P=0.75 mm), 42 mm for T-ring Visual back: 31.7 mm connection Solar observation: For solar observation, a solar projection screen set B and an eyepiece are required (not included) Weight: 2.6 kgSCOPE OF DELIVERY Vixen SDP65SS Dovetail slide bar 1/4 inch screws (L: 19 mm) x 2 pieces, Allen key (3 mm, 2 mm, 1.5 mm, 3/16 inch)

Available

£2,998.00*
Vixen VSD70SS F5.5 Astrograph Telescope
Fast 70mm high-performance astrograph F5.5 designed for demanding astrophotographers and observers, featuring 5 lens elements in 5 groups With its sophisticated optical design incorporating five lens elements in five groups (Quintuplet), including two SD (Super ED) lenses and one ED (Extra-low Dispersion) lens, this astrograph delivers a virtually aberration-free optical system. The convex lens utilises two SD lenses and a high-refractive ED lens, while the front lens is crafted from a newly developed high-performance lanthanum glass. Perfect for astrophotography and visual observation This revolutionary astrograph is compatible with digital full-frame DSLRs and even larger 44 x 33 mm cameras. With its fast F5.5 aperture ratio, the 70mm astrograph produces exceptionally sharp, high-contrast, pinpoint stars from the centre to the very edges of the field of view. Not only is it ideal for astrophotography, but it also excels in visual observation, offering a wide field of view for deep-sky objects and delivering stunning detail in planetary observation with high magnification. Consistently sharp imaging across the entire field The VSD70ss is designed with a long peak range in focus adjustment accuracy, making it easier for astrophotographers to achieve consistently outstanding results. Even if the focus isn’t set perfectly, stars remain round and sharp across the entire image field. The VSD70ss is very temperature-resistant so that you always keep a very stable focus point. Minimal vignetting for uniform illuminationMost astrographs experience some level of optical vignetting (light gradually diminishes towards the image edges). This is mainly caused by the rear lenses being shadowed by the front lenses. As a result, photographers often need to apply image corrections or capture additional flat frames beforehand. The VSD70ss tackles this issue with large-aperture lenses in the rear elements and preserves over 90% of the light all the way to the edge of its 55mm image circle. The result is uniform brightness across the entire field, eliminating the need for extensive post-processing to compensate for edge darkening. The VSD70ss features cutting-edge multi-coatings with exceptionally high reflectivity. These coatings have been specially designed to optimise the performance of each individual lens element, ensuring maximum contrast and light transmission without degradation across multiple lenses. Note: *Mechanical vignetting may still occur depending on the camera system used, particularly due to the camera body or incorrect adapters. 96.7% Strehl for stunning visual observations When paired with a wide-angle eyepiece with low magnification the VSD70ss offers a flattened large field of view. Even with a high-quality wide-field eyepiece with a large field of view, stars appear sharp across the entire field of view during visual observation. At the centre of the field, the telescope achieves an impressive 96.7% Strehl intensity at visible wavelengths—surpassing even the acclaimed SD81SII apochromat with its 95.7% Strehl ratio. This superior optical quality is also evident when observing the Moon and planets at high magnifications. Large, versatile, and stable focuser The VSD70ss has a large focuser with a diameter of 87.5mm to make optimum use of the large 55mm field of illumination. Designed to support a wide range of accessories, this large focuser is perfect for astrophotography, accommodating everything up to large-format cameras or 35mm full-frame DSLR cameras. Its precision manufacturing ensures excellent stability, preventing any tilting even when using heavy imaging equipment. Optional VSD reducer for even faster resultsThe new reducer has been specially developed for the VSD90ss and the VSD70ss. At a focal ratio of 1:3.9. the photographer gets even faster results in astrophotography. Compatible with motorised focusersTo enable sensitive focusing, an optional dual-speed motor focuser is available for the VSD70ss. Additionally, an EAF (Electronic Automatic Focuser) from ZWO or a compatible system can be retrofitted. FEATURES SD apochromat, 5-element/5-group, AS coating Aperture: 70mm Focal length: 385mm (F/5.5) Resolution: 1.66 Limiting magnification: 11.0 Light gathering power: 100x more than the eye Field of view: 55mm Tube dimensions: 444 x 90 mm (368mm retracted) Adapters/Threads: 84mm (P=1mm), 60mm (P=0. 75mm), 42mm (P=0.75mm for T-ring) Connections: 60.2mm, 50.8mm, 31.7mm Weight: 3.5 kgSCOPE OF DELIVERY VSD70ss Astrograph Adapter: 60.8mm to 50.2mm 1/4 inch screws (L: 9mm) x 2 Allen keys (3mm, 2mm, 1.5mm, 3/16 inch) Dovetail bar (Vixen standard)

Available

£4,998.00*