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EXPLORE SCIENTIFIC T2 Reduction Adapter M48x0.75 to M42x0.75

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Guides & Tips

FAQ - Frequently Asked Questions

That is normal. Finder scopes are only used to make objects easy to locate. The image orientation does not matter for observation.

  • Alt-azimuth: easy to use, moves horizontally and vertically
  • Equatorial: enables precise tracking of objects with only one axis – ideal for high magnifications and astrophotography

  • Moon: from 30 mm
  • Planets: from 100 mm
  • Deep sky: from 150 mm
Are you a member of an astronomy club? Find out here what your benefits are.
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Product and safety instructions


Manufacturer: 
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact: 
www.bresser.de


Warning notes
  • General warning instructions DANGER! RISK of bodily injury! Never look directly at the sun or near the sun through this device. There is a risk of blindness! Sharp-edged and pointed tools are often used with this device. Therefore, store this device and all accessories and tools in a place inaccessible to children. There is a RISK of injury! Children may only use the device under supervision. Keep packaging materials (plastic bags, rubber bands, etc.) away from children! There is a risk of suffocation! FIRE HAZARD! Do not expose the device – especially the lenses – to direct sunlight! The light concentration could cause fires. NOTE! Do not dismantle the device! In case of a defect, contact your dealer. They will contact the service center and may send the device in for repair. PRIVACY PROTECTION! The telescope is intended for private use. Respect the privacy of others – for example, do not use this device to look into apartments!
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Accessories

EXPLORE SCIENTIFIC Zero X Field Flattener 2''/M48 for ED80, ED102 and ED127 APO
Field flattener without reduction factor for Explore Scientific ED80 , ED102 and ED127 APO Refractors The imaging plane of many telescopes is not flat but curved. This means that only the area in the centre is perfectly focused - the edge becomes blurred. The human eye can usually compensate for this image property, but a camera shows increasing blurriness towards the edge of the image field. The Explore Scientific Zero X field flattener eliminates the field curvature in many telescopes with a focal length of approx. 480 to 952 mm. The Zero X field flattener was calculated and developed for Explore Scientific ED80, ED102 and ED127 apochromats with focal ratios of F=6.0 and F=7.5. The image sharpness at the edge is dramatically increased. The stars appear round and no longer distorted - a clear benefit for the whole image aesthetics. The Zero X image flattener can be used not only with Explore Scientific Apos, but also with many other Apos. This flattener does not change the focal length of the telescope. Correction for up to full-frame camera sensors (24x36mm) The Explore Scientific Zero X image flattener has been developed due to the rapid development of ever larger camera sensors. With it, there is finally a field flattener available that illuminates and corrects the field of view for full-frame camera sensors up to 24x36 mm. How to use the Zero X field flattener with M48 thread connection This field flattener has a 2 inch (50.8 mm) plug-in connection on the telescope side, with which it is inserted into the telescope instead of an eyepiece or star diagonal mirror. On the camera side, there is a standardised M48 x 0.75 mm connection thread. This M48 connection thread offers a larger free inner diameter than the usual T2 (M42) thread and prevents vignetting when using large camera sensors. With an optionally available and camera-specific adapter ring, a DSLR camera can be connected to it. The working distance is already set at 55 mm. Of course, mirrorless cameras or special astro cameras can also be used with the M48 thread connection. For this, the appropriate M48 spacer sleeves or adapters are additionally required to set the right working distance of 55 mm. This must always be done with every corrector or field flattener so that the best possible field flattening is achieved.Filter thread on telescope side availableThe telescope-side 2.0 inch plug-in sleeve has an M48x0.75 filter thread (internal thread). Individual 2.0 inch colour or nebula filters can be inserted here to increase the contrast of the images.FEATURESField flattener for Explore Scientific ED80, ED102 and ED127 APO telescopesRemoves field curvature from telescopesProduces round stars even at the edge of the image fieldImage sharpness at the edge is drastically increasedA clear benefit for the whole image aestheticsCorrection of field curvature for up to full-frame camera sensors (24x36 mm)Image field flattener without reduction factorOn the telescope side with 2 inch (50.8 mm) plug-in connection and M48x0.75mm filter threadCamera side with large M48 threaded connectorWorking distance of 55 mm between field flattener and camera sensorFor telescopes with a focal length of approx. 480 to 952 mmOptimised for telescopes with focal ratios from F=6.0 to F=7.5Can also be used for various other APOsFully multi-coating on all lens surfacesHousing made of lightweight aluminium, black anodisedAluminium dust cap for M48 threadSCOPE OF DELIVERYZero X field flattener (1 piece)Dust caps

Available

£169.00*
EXPLORE SCIENTIFIC Extension Ring Set M48x0.75 - 5 pieces (30, 20, 15, 10 and 5 mm)
Five extension tubes from 30 to 5mm length with thread connection M48x0,75mm in a set. For adjusting different distances of the camera to the focal plane of the telescope or the corrector/field flattener. There is an M48.0,75 internal and external thread in each individual tube. The M48x0.75 thread is also called large T2 photo thread or 2.0 inch filter thread. Camera specific bayonet adapters or color and nebula filters can be used. Included are 5 different tubes with the steps 30, 20, 15, 10 and 5 mm. The larger free inner diameter of 45.0 mm effectively prevents undesired vignetting of the camera sensor. The outer diameter of the sleeves is exactly 50.65 mm and can therefore be mounted directly in any 2 inch diameter eyepiece adapter. FEATURES Extension sleeves M48x0,75 in set Five extension sleeves: 30, 20, 15, 10, 5 mm Use with correctors and field flatteners Distance adjustment from camera to focal plane Suitable for camera-specific bayonet adapters Also suitable for 2.0 inch colour and nebular filters Internal and external thread M48x0.75 mm (large T2 thread) Large inner diameter of 45.0 mm Outer diameter is 50.65 mm (2 inches) Black matt anodized aluminium Total weight 85 grams SCOPE OF DELIVERY Extension sleeves M48x0.75 (5 pieces)

Available

£51.00*
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EXPLORE SCIENTIFIC Extension Ring Set M48x0.75 - 5 pieces (30, 20, 15, 10 and 5 mm)
Five extension tubes from 30 to 5mm length with thread connection M48x0,75mm in a set. For adjusting different distances of the camera to the focal plane of the telescope or the corrector/field flattener. There is an M48.0,75 internal and external thread in each individual tube. The M48x0.75 thread is also called large T2 photo thread or 2.0 inch filter thread. Camera specific bayonet adapters or color and nebula filters can be used. Included are 5 different tubes with the steps 30, 20, 15, 10 and 5 mm. The larger free inner diameter of 45.0 mm effectively prevents undesired vignetting of the camera sensor. The outer diameter of the sleeves is exactly 50.65 mm and can therefore be mounted directly in any 2 inch diameter eyepiece adapter. FEATURES Extension sleeves M48x0,75 in set Five extension sleeves: 30, 20, 15, 10, 5 mm Use with correctors and field flatteners Distance adjustment from camera to focal plane Suitable for camera-specific bayonet adapters Also suitable for 2.0 inch colour and nebular filters Internal and external thread M48x0.75 mm (large T2 thread) Large inner diameter of 45.0 mm Outer diameter is 50.65 mm (2 inches) Black matt anodized aluminium Total weight 85 grams SCOPE OF DELIVERY Extension sleeves M48x0.75 (5 pieces)

Available

£51.00*
BRESSER Moon Filter for 1.0"/24.5mm Eyepieces
BRESSER Moon Filter for 1.0''/24.5mm Eyepieces Category: Spare Part suitable for BRESSER JUNIOR Telescope Series Description: The moon filter reduces glare and enhances contrasts during moon observations. Suitable for most models of the BRESSER Junior Telescope series. The robust construction ensures long-lasting use. Easy attachment with screw thread. Please measure the inner barrel diameter of the connection on your telescope before ordering.

Available

£6.00*
BRESSER Microscope Photo Adapter 23mm
Photo adapters are used to mount a camera on a microscope. SLR cameras work without their own objective. The magnification is made only by the microscope objectives. A specific T2-ring is necessary!With the BRESSER photo adapter 23 mm reflex cameras can be connected to microscopes with a eyepiece tube diameter of 23 mm. The camera is connected to the photo adapter via an optionally available T2 ring. The photo adapter is put into the eyepiece tube of the microscope instead of the eyepiece. Depending on type of construction and sensor or film size shadows may occur at the margins of the image.This photo adapter is compatible with the following BRESSER microscopes:Researcher Bino (5722100)Researcher Trinocular (5723100)Analyth Bino (5730000)BioScience Bino (5750500)Biolux ICD (5802000)Advance ICD (5804000)

Available

£26.99*
EXPLORE SCIENTIFIC Zero X Field Flattener 2''/M48 for ED80, ED102 and ED127 APO
Field flattener without reduction factor for Explore Scientific ED80 , ED102 and ED127 APO Refractors The imaging plane of many telescopes is not flat but curved. This means that only the area in the centre is perfectly focused - the edge becomes blurred. The human eye can usually compensate for this image property, but a camera shows increasing blurriness towards the edge of the image field. The Explore Scientific Zero X field flattener eliminates the field curvature in many telescopes with a focal length of approx. 480 to 952 mm. The Zero X field flattener was calculated and developed for Explore Scientific ED80, ED102 and ED127 apochromats with focal ratios of F=6.0 and F=7.5. The image sharpness at the edge is dramatically increased. The stars appear round and no longer distorted - a clear benefit for the whole image aesthetics. The Zero X image flattener can be used not only with Explore Scientific Apos, but also with many other Apos. This flattener does not change the focal length of the telescope. Correction for up to full-frame camera sensors (24x36mm) The Explore Scientific Zero X image flattener has been developed due to the rapid development of ever larger camera sensors. With it, there is finally a field flattener available that illuminates and corrects the field of view for full-frame camera sensors up to 24x36 mm. How to use the Zero X field flattener with M48 thread connection This field flattener has a 2 inch (50.8 mm) plug-in connection on the telescope side, with which it is inserted into the telescope instead of an eyepiece or star diagonal mirror. On the camera side, there is a standardised M48 x 0.75 mm connection thread. This M48 connection thread offers a larger free inner diameter than the usual T2 (M42) thread and prevents vignetting when using large camera sensors. With an optionally available and camera-specific adapter ring, a DSLR camera can be connected to it. The working distance is already set at 55 mm. Of course, mirrorless cameras or special astro cameras can also be used with the M48 thread connection. For this, the appropriate M48 spacer sleeves or adapters are additionally required to set the right working distance of 55 mm. This must always be done with every corrector or field flattener so that the best possible field flattening is achieved.Filter thread on telescope side availableThe telescope-side 2.0 inch plug-in sleeve has an M48x0.75 filter thread (internal thread). Individual 2.0 inch colour or nebula filters can be inserted here to increase the contrast of the images.FEATURESField flattener for Explore Scientific ED80, ED102 and ED127 APO telescopesRemoves field curvature from telescopesProduces round stars even at the edge of the image fieldImage sharpness at the edge is drastically increasedA clear benefit for the whole image aestheticsCorrection of field curvature for up to full-frame camera sensors (24x36 mm)Image field flattener without reduction factorOn the telescope side with 2 inch (50.8 mm) plug-in connection and M48x0.75mm filter threadCamera side with large M48 threaded connectorWorking distance of 55 mm between field flattener and camera sensorFor telescopes with a focal length of approx. 480 to 952 mmOptimised for telescopes with focal ratios from F=6.0 to F=7.5Can also be used for various other APOsFully multi-coating on all lens surfacesHousing made of lightweight aluminium, black anodisedAluminium dust cap for M48 threadSCOPE OF DELIVERYZero X field flattener (1 piece)Dust caps

Available

£169.00*
EXPLORE SCIENTIFIC Camera-Ring M48x0.75 for Nikon
Camera specific bayonet adapter (camera ring) for Nikon DSLR with M48x0.75 mm internal thread for astrophotography. By using the large thread M48x0.75 mm, the vignetting of e.g. a DSLR full format sensor is effectively avoided. Compared to the small T2 thread M42x0.75, this adapter has a free inner diameter of 41.2 mm. This camera ring is made of matt black anodised aluminium and weighs only 30 grams. The light path (overall length) is 8.0 mm. FEATURES Camera-specific bayonet adapter NikonLarge female thread M48x0.75 mm Free inner diameter of 41,2mm No vignetting for full format sensors Light path (overall length) is 8.0 mm Made of matt black anodized aluminium Weight only 30 grams SCOPE OF DELIVERY Camera ring for Nikon (1 piece)

Available

£24.90*
BRESSER T2 Extension Tube Set
Set of 5 extension tubes with T2 thread on both sides for exact distances and secure hold of cameras for astrophotography. Also comes with SC to T2 thread adapter.In astrophotography, most cameras are connected to a telescope via a T2 thread (M42x0.75), the most popular international standard. However, in many cases, T2 and T2-ring adapters for connecting telescope focusers to a camera are not sufficient, as specific distances must also be observed. This is especially important when using correctors, reducers or flatteners. This extension tube set, which consists of 5 mm, 7.5 mm, 10 mm, 15 mm and 30 mm tubes, will allow you to obtain almost any distance using the corresponding combination. Each tube has a T2 interior thread on one side and a T2 exterior thread on the other side.Most telescopes either include a T2 thread adapter, or the eyepiece can be used with a simple T2 thread adapter with a 2” plug-in diameter (item no. 0510365).However, Maksutov-Cassegrain, Schmidt-Cassegrain, ACF or Ritchey–Chrétien telescopes may use a so-called SC thread. To allow you to use this extension tube set with these telescopes, the set also includes an SD to T2 thread adapter.FEATURES5 T2 tubes with lengths from 5 mm to 30 mmCombination of tubes allows you to obtain distances of 5 mm to 67.5 mmFor exact camera distances in astrophotographyDELIVERY CONTENT5x T2 extension tubes (5/7.5/10/15/30 mm)1x SC to T2 thread adapter

Available

£29.00*
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EXPLORE SCIENTIFIC 4K DEEP SKY ASTRO Camera & Guider 8,3 MP II
Enter the world of astrophotography now - with the new EXPLORE SCIENTIFIC 4K DEEP SKY ASTRO Camera including ST4 autoguider function. This is truly new: Equipped with the new high-sensitive IMX585 Exmor CMOS colour sensor, this astronomy camera delivers amazing image results with extremely short exposure times even with basic telescope equipment. In addition, this ultra-modern camera can also be used as an autoguider, e.g. to actively track the main imaging device with an SLR or CCD astro camera. An all-round camera that delivers super-sharp and high-resolution planetary images. The high 4K resolution of 3840x2160 pixels guarantees the best possible image result. Sensor The secret to the high light sensitivity is the new back illuminated Exmor CMOS sensor. It increases the quantum efficiency to up to 77 % at 533 nm, which leads to an extremely high light sensitivity and thus particularly bright and high-contrast photos. In addition, the particularly low noise level of this new CMOS sensor generation ensures exceptionally high brilliance and no active cooling is required. Nevertheless, this astro camera has an elaborate internal structure made of aluminium for ideal heat radiation and a fan that can be switched on via software. When used with suitable telescopes, the high native pixel resolution of 3840x2160 enables very nice overview images of the moon, but also detailed planetary images. Solar Imaging This camera is also recommended for solar astro-photography. Especially the Lunt LS40 THa solar telescopes (item No. 0551145/0551146/0551147), with their short focal length, allow in combination with this planetary camera with its large sensor great overview images of the sun. Important Note: When observing and taking photos of the sun, always use a suitable protective solar filter or a special solar telescope. Otherwise there is a risk of immediate blindness and damage to the camera. Software The included Explore Capture professional software offers not only the necessary basic functions for image and video capture, but also many helpful special functions for image post-processing and for setting up the guider. Functions such as live image display, exposure settings, white balance, dark image capture, stacking, timelapse recording and much more can be configured individually. Especially the very sophisticated software makes it really easy for you to get started in astrophotography. With the automatic settings you can produce absolutely presentable results without a lot of prior knowledge. And when you are ready, simply switch off the automatic settings and gradually venture into the individual professional settings. Automatic tracking control Connect the camera directly to the ST4 port of your telescope mount and you have a fully automatic tracking control. Thus, long exposures of several minutes are possible without the stars producing unwanted star traces due to the always existing periodic error of the telescope mount gears. A corresponding ST-4 connection cable is even included in the camera's scope of delivery. Because of the high light sensitivity of the camera, you will always find a suitable guide star even with very short exposure times. Simple automatic tracking at its best. Connection For the connection to telescopes, guiding scopes or off-axis guiders the camera has a 1.25'' socket with 1.25'' filter thread (M28.5x0.6) and a large T2 connection thread (M42x0.75) directly on the housing. IMPORTANT NOTES: This is not a stand-alone guider camera. You always need a Windows 10 or 11 computer to take pictures and for autoguiding. The autoguider software is not included. You can use PHD2 Guiding, GuideDog, Metaguide, Guidemaster (freeware) or AstroArt, MaxIm DL (paid). DOWNLOAD PHD2-Guiding: https://openphdguiding.org/ DOWNLOAD GuideDog: http://barkosoftware.com/GuideDog/index.html DOWNLOAD latest camera software and drivers see download folder "Manuals" or here: https://www.touptek-astro.com/downloads Sample photos made by Lóránd Fényes in Hungary: https://fenyeslorand.hu/naprendszerunk/ https://fenyeslorand.hu/explore_scientific_4k_review/ https://fenyeslorand.hu/asztrofotok/ FEATURESHighly light-sensitive USB 3.0 4K colour camera Suitable for taking pictures of deep sky objects, the Moon and planets Integrated ST4 guiding function Allows very short exposure times for super-sharp planetary images Camera type: EXPLORE SCIENTIFIC G3CMOS08300KPA colour Image sensor: NEW IMX585 Exmor CMOS colour sensor, back illuminated Data output: still images and video Image and video format output: 3840 x 2160 (4K) & 1920 x 1080 (Full HD) pixels Framerate: up to 43 and 66 FPS (for video) Physical sensor size in pixels: 3840 x 2160 (4K) Possible exposure times: 0.1 ms to 60 min Binning: Yes, 1x1 and 2x2 Megapixel: 8.3 MP Sensor size: 11.14 x 6.26 mm Image diagonal: 12.86 mm Pixel size: 2.9 µm x 2.9 µm Bit depth: 8/12 bits, switchable ST-4 compatible autoguider: Yes CNC machined aluminium housing Camera connection diameter: 1.25'' ( 31.7 mm) Camera connection thread: T2 thread (M42x0.75 mm) and 1.25'' filter thread Camera connection to PC: USB 3.0 Required backfocus: 17.5 mm Shutter type: Global shutter Heat radiation via built-in fan (switchable via software) Operating temperature: -10 to +50 °C (30-80 % RLH) Cable length USB 3.0: 150 cm Camera diameter: 68 mm; length: 85 mm Camera weight: 0.3 kg Software: Explore Capture included Camera driver and ASCOM driver and SDK included PC requirements: CPU Intel Core2 2.8Ghz or higher / 2 GB Ram / USB 3.0 Operating system: WINDOWS 10 + 11 Field of view for different focal lengths in minutes of arc: 400 mm - 95.6' x 53.8' 500 mm - 76.5' x 43.0' 600 mm - 63.7' x 35.8' 700 mm - 54.6' x 30.7' 800 mm - 47.8' x 26.9' 900 mm - 42.5' x 23.9' 1,000 mm - 38.2' x 21.5' 1,250 mm - 30.6' x 17.2' 1,500 mm - 25.5' x 14.3' 1,750 mm - 21.8' x 12.3' 2,000 mm - 19.1' x 10.8' SCOPE OF DELIVERY4K Planetary Astro Camera & Guider 8.3 MP 1.25 inch (31.7 mm) plug-in adapter with filter thread USB 3.0 connection cable 150 cm Control cable for ST-4 autoguider function 150 cm Dust cap for camera opening Software (via download) Instruction manual (via download)

Currently not available

£560.00*