LUNT LS130MT/B3400R&P Multipurpose APO Telescope for Sun + Night-Sky

Ultra Light Dobsonian 500mm GENERATION II - telescope mechanics handcrafted in HUNGARY and GERMANY No telescope type has influenced amateur astronomy as radically as the dobsonian telescope. Before the introduction of this telescope type by John Dobson the vast majority of amateur telescopes were small inadequate refractors on shaky mounts - just good enough to show the polar regions on mars or the rings of Saturn. Bigger telescopes, like the Schmidt-Cassegrain telescopes, were restricted to the relatively small group of amateurs that could afford them.The brilliant combination of simple - but effective - mechanics and the largest aperture available led to a worldwide triumph of this concept. No other telescope type offers you so much light for your money as a good dobson. We have taken the motto held together by gravity and driven by yoghurt power and offer a modern version of the classic - designed by amateur astronomers for amateur astronomers. Despite its large aperture the telescope can be transported easily even in small cars and is assembled within minutes without tools. The construction was optimized for maximum rigidity with a minimum of mass. The combination of big altitude wheels and a optimized aluminium-sandwich construction allows for small movements even at high magnifications. The focus position is already positioned to accept our coma-corrector (part No. 0510330) . The ideal workhorse for the deep-sky enthusiast. A telescope with 500mm aperture gathers more than 5100-times more light than the naked eye. Details on planetary surfaces stand out even to unexperienced observers, and countless deep-sky objects show details and some color. Bright globular clusters are resolved down to the core and the view of the lunar terminator will provide a unforgettable experience. The fast 20’’ f3.6 main mirror as well as the large 120mm secondary mirror are made of high quality quartz material, so the cooling time is reduced to a minimum and the Dobson is quickly ready for use. Every main mirror is delivered with an individual optical test certificate, which guarantees the highest capacity. A laser engraved center mark of the main mirror allows easy adjustment. The optical surface has a high-quality aluminum silvering with 94% reflectivity and an extremely resistant quartz protection layer. The mirror overcomes frequently occurring dew fogging and cleanups without any damages and guarantees a long service life. A complete redesign of this Dobson was necessary to ensure the significantly increased requirements to stiffness and load bearing capacity of the optical components. All connections of the tube structure were made in the TIG welding process and no rivets and screws were used. This has made it possible for us to produce this 20’’ light weight Dobson so unbelievably stiff in spite of the low weight - a noticeably good quality which is searching for its match. The production of almost all mechanical components is carried out by our partners in Hungary and the final assembly of the optics and subsequent quality control takes place in Rhede, Germany. The equipment details of the smaller Dobson models, which have been popular for years, have been taken over and even extended considerably. First of all, of course, the very good decomposability and transportability should be mentioned. Set-up and dismantling can be carried out without tools. The main and secondary mirrors are adjustable during the observation and only two adjusting screws have to be moved. Thanks to the use of precision ball-heads in the main mirror cell and a precision hinge for secondary mirror suppport, the adjustment is absolutely easy and guarantees excellent stability. All connecting parts of the tube trusses now consist of CNC machined aluminum and are attached by stainless steel dowel screws. The secondary mirror can now also be adjusted by the adjusting screws in the direction of the optical axis. The tried and tested 2.5’’ HEXAFOC focuser with 1:10 fine adjustment has been used for years - this allows vignetting-free observation despite the fast aperture ratio. A second 40° displaced installed mounting plate with a viewfinder shoe allows the rotation of the tube top in combination with a favorable position of the viewfinder tube or the mounting of an additional TELRAD viewfinder. The 6 supporting feet underneath the rockerbox offer a perfect stability and guarantee a smooth tracking in azimuth. Four smaller fans are installed in the side of the mirror box as well as a large fan is installed under the main mirror. This allows an even quicker adaptation to the ambient temperature and reduces the tube seeing (boundary layer removal). The lateral altitude wheels can now be stowed comfortably in the foam layers of the mirror box. Last but not least another gimmick: The optical tube and the mirror cell are designed to use also on heavy equatorial mounts. Dimensions for mobile use: DIMS total: 680x680x1790mm; Rockerbox 678mmx678mmx347mm; Mirrorbox 590mmx590mmx361mm; Trusses approx. 1084mm; Truss diameter: 25mm; Eyepiece height while pointing at zenith approximately 1,63m; 20’’ Total net weight: 53 kg; 20’’ Mirror Box + Altitude wheels: 35,8kg; 20’’ Secondary Cage: 3,8kg; Rockerbox: 10,6 kg; 20’’ 4 Truss pairs: 2,8kg; 20’’ Primary mirror: 20kg SPECIFICATIONS Truss-Dobsonian telescope in full Aluminium construction Handcrafted in HUNGARY and GERMANY Fast 20’’ f3.6 optics with 1800mm focal length Large 120mm secondary mirror (short axis) Quarz primary- and secondary mirror set Laser engraved central mark on primary mirror Eyepiece height while pointing at zenith approximately 1,63m Full welded rigid telescope structure - no rivets and no screws Telescope tube and rockerbox powder-coated Collimation while observing with the delivered tooling DeLuxe 2,5’’ HEXAFOC focuser with 1:10 gear-reduction 8x50 finder scope with red illuminated reticle Slider bearings made from TEFLON und GRP for smooth and precise movement Improved primary mirror cell with completely redesigned mechanics High precision hinge system for secondary mirror holder Secondary mirror holder with adjustment mechnism along the optical axis 6 larger feet to improve stability Counter-weights (4 x 1.0 kg) included 2 universal finder slots to enable an easy finder position Quick-lock fasteners with new springloaded design for comfortable use Large powder-coated yellow altitude wheels for smooth tracking Altitude wheels can be stored in the mirror box 5 cooling fans are speeding up the cool-down time SCOPE OF DELIVERY Truss Dobsonian Telescope Individual optical test report for primary mirror 8x50 finder with red illuminated reticle Stray light shield for secondary cage Primary mirror collimation tool Battery compartment with bag for fans Extension tube for focuser Reducer 2’’/1.25’’ Manual SHIPPING DIMENSION - truck shipment only in order to guarantee a save transport: BOX1: 600x600x380 approx. 44 kg ; BOX2: 690x690x330 approx. 17 kg ; BOX3: 150x150x1150 approx. 4 kg

Highly corrected 80mm air-spaced triplet apochromat (with three lenses) and aluminium tube and a 2.5" high-precision HEXAFOC focuser.   Apochromats are the ultimate choice in small to medium sized telescopes: the combination of compactness, transportability, very high image contrast and sharpness together with the possibility to make excellent astrophotos cannot be bested. The advances in glass manufacturing during the last few years have made true apochromats available to more astronomy enthusiasts than ever before. The new Explore Scientific FCD-100 Alu Hex represents another major improvement in this field - the overall correction (color and spherical) is setting new standards in this price class. The optical design shows a polystrehl value of 0,97 indicating a level of correction that is absolutely top of the line.This small excellent apochromat is a very versatile telescope: the fast f-ratio makes short exposure times possible. The high contrast and sharpness of the image provide breathtaking views of large objects like the North america nebula or the Andromeda galaxy as well as tack sharp planetary images. The telescope is lightweight and compact - the dew shield slides down the tube to minimize size for transportation. Revolutionary glass and precision manufacturing created a telescope that offers observing joy on the highest level. This does not only qualify this telescope as the ideal travel scope, it is also the perfect choice for fast observations and for astrophotography. The excellent 2,5" HEXAFOC focuser with 10:1 reduction is perfect for this - the large inner diameter of 65mm prevents vignetting by the focuser when the telescope is used for astrophotography with large sensors.These very popular EXPLORE SCIENTIFIC Triplet ED APO Refractors we do offer in 3 different product lines:Essential Line: HOYA FCD-1 Glass lens, AL-Tube, 2.0" Rack&Pinion Focusser with 1:10, 2.0" Star Diagonal 99% Reflectivity (see Part No. 0112084(AL), 0112106(AL), 0112132(AL)), 0112155(CF + 3"FT)) Professional Line: HOYA FCD-100 Glas lens, AL/CF-Tube, 2.5" HEXAFOC Focusser with 1:10, 2.0" Star Diagonal 99% Reflectivity (see Part No. 0112086(AL), 0112108(AL), 0112109(CF), 0112134(AL), 0112135(CF))High-End Line: OHARA FPL-53 Glass lens, Carbon(CF) Tube, 3.0" Feather-Touch Focusser with 1:10, 2.0" Star Diagonal 99% Reflectivity (see Part No. 0112165(CF))SPECIFICATIONSAperture: 80mmFocal Length: 480mmFocal ratio: f/6Weigth: 2,6kgBackfocus: 150mm above 2" adaptorDesign: Apochromat with three lenses, two air spaces and FCD-100 glassSCOPE OF DELIVERY Optical tube with retractable dew-shield 2.5" HEX focuser with 1:10 gear reduction 2" Star Diagonal 99% reflectivity Universal dovetail - GP levelDust caps for front-lens and focuser Universal finder slot

Modular designed multipurpose telescope, both for observing the sun in the H-alpha wavelength, as well as for night sky observations. Easy conversion between the different applications with a few simple steps. 3-lens apochromatic telescope with FPL-51 glass, 130mm aperture and 910mm focal length - excellent image quality for H-Alpha solar observation and also for observing the starry sky at night. With innovative air pressure tuning system, good 2 inch (50.8mm) R&P focuser, and B1800 blocking filter. Solar observing in H-alpha: The LS130MT/B1800 is a complete telescope for observing the sun in H-alpha light, with 130mm free aperture (no central obstruction) and 910mm focal length. The H-alpha wavelength is the most impressive way to observe the sun, showing protuberances at the sun's edge, filaments and flares on the surface, and much more. An internal Etalon filter achieves a bandwidth of <0.7 Angstrom with the innovative air pressure tuning system Pressure-Tuner. Tuning is done by slightly changing the air pressure in a pressure chamber inside the telescope. This changes the refractive index of the air, making it easy to tune to the H-alpha line. The pressure tuner guarantees a homogeneous image, without central obstruction, and a permanently protected Etalon without erosion. A set of collimating lenses installed in the telescope ensures best performance. Fine adjustment is achieved with a solid 2 inch R&P focuser with 10:1 reduction. Blocking-filter is the B1800. The B1800 is good for visual solar observing and also solar imaging is possible by cameras with small to large sensor chips. We recommend a LS130MT with B3400 blocking-filter by using cameras with very large sized sensor chips. The star diagonal in which the blocking filter is installed, is equipped as standard for 1.25 inch eyepieces and with a T2 camera connection. Observing the starry night sky: The H-Alpha Etalon system can be removed from the telescope in a few easy steps thanks to its modular design. Then the 3-lens apochromatic refractor can be used as a normal telescope with 130mm aperture and 910mm focal length for observation and photography of the night sky. The FPL-51 triplet lens offers an outstandingly low colour aberration image. Common 2 inch star diagonals can be used at the R&P focuser of the telescope. Please note that the optionally available conversion kit 0551696 is only absolutely necessary for the LS130MT version with B3400 blocking filter if the telescope is also to be used at night. The conversion kit is not required for the versions with B1200 and B1800. More applications: With additionally available accessories the LS130MT offers even more possibilities! - Double-Stack The LS130MT telescope can optionally be upgraded with the additionally available double-stack module LS130MT/DSII (item number 0551690). The DSII system is a internal double-stack module with Pressure-Tuner. Thereby a bandwidth of <0.5 Angstrom is achieved for H-alpha solar observation. Therefore much more details on the solar surface will become visible. - Solar observing in White-Light If the H-alpha unit has been removed, of course either a sun filter can be installed in front of the objective, or a Herschel-wedge at the focuser can be used to observe the sunspots in White-Light. - Solar observing in Ca-K wavelengthThe additionally available "LUNT Ca-K Filter Module for LS130MT" (item number 0551697) can be used on the LS130MT to observe and photograph super-granulation and other effects visible at this wavelength on the sun. This makes the LS130MT a completely universal usable apochromatic telescope of highest quality! FEATURES 3-lens APO refractor, FPL-51 Aperture: 130mm (no central obstruction) Focal length: 910mm Bandwidth: internal Etalon with <0.7 Angstrom Tuning: air pressure tuning system Pressure-Tuner Blocking filter: B1800 with 1.25" and T2 connection Focuser: R&P with 10:1 reduction Two tube-ring with handle Sol-Searcher installed inside handle Dovetail bar at GP-level for astronomical mounts Weight: 12.1kg Length with blocking filter and dew-shield: 100cm Length without blocking filter and removed dew-shield: 80cm SCOPE OF DELIVERY LS130MT Multipurpose Telescope Pressure-TunerB1800 blocking filter in star-diagonal housingTube extension for using without H-alpha Etalon 2 inch R&P focuser with 10:1 reduction Tube rings with dovetail bar Transport case (92 x 42 x 35 cm) Instruction manual

This NATIONAL GEOGRAPHIC 40x1280 reflected and transmitted light microscope is a perfect device to get an excellent access into the world of microscopy. Due to many exclusive accessories like a set of dissecting instruments or a seperate electronical eyepiece, you can expand your beginner´s model. Furthermore, a smartphone holder gives the possibilty to make pictures of your observations with your smartphone. The smartphone holder allows for an easy observation as well as saving your observations on your smartphone. FEATUREScombination of reflected and transmitted lighta wide range of magnificationsextensive range of accessories for an immediate startSCOPE OF DELIVERY2 eyepieces (10X WF ; 16X WF) 2-fold Barlow lens Power cable Plastic box with 5 blank slides, 10 cover plates, 5 prepared slides Pipette Tweezers Hatchery MicroCut Specimen (yeast, gum media, sea salt, shrimp eggs) Smartphone holder

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

SXP2WL mount with AX103S apochromatic high-performance refractor in a complete setWith this complete telescope set, you can immediately start your hobby. It includes everything you need for astronomical observation: a powerful AX103S apochromat, the corresponding mount with automatic GoTo tracking, 2 SLV 20 and SLV 5 eyepieces, and a sturdy tripod. The SXP2WL mount is equipped with the PFL-II polar finder for quick and easy alignment using reference stars, as well as a WiFi adapter with the STARBOOK APP. This allows the telescope to automatically navigate to the objects you select. The AX103S apochromat has been optimized for astrophotography and provides a sharp image even to the corners of a full-frame DSLR camera. But the telescope is also ideal for visual observation, offering high-contrast images without chromatic aberrations. The AX103S Apochromat in DetailThe AX103S is a top-class ED apochromat from the Vixen Refractor series. The telescope is equipped with a Triplet SD lens, and there is a field flattener lens located at the rear. Additionally, the f/8.0 refractor includes a central ED lens in the objective, which reduces chromatic aberration to an absolute minimum.An optional Focal Reducer (not included) can reduce the aperture ratio to 1:5.6, allowing for faster results in astrophotography. The integrated field flattener ensures a sharp image all the way to the edge of the field of view – an essential requirement for high-quality images of celestial bodies.With the 60 mm ring on the focuser, you can use 2'' eyepieces with the telescope or attach a camera adapter.The AX103S has been specifically designed for photographic applications and corrected for full-frame photography. However, it is also a visual delight, particularly for observing the moon and planets.This excellent telescope is guaranteed to impress you for a lifetime! The SXP2WL Mount in Detail Stronger Mount HousingThe SXP2WL mount features larger bearings than previous models to increase accuracy and load capacity. Additionally, the mount housing is made of thicker material. To make the polar block even more stable, the axis cross is clamped firmly into a fork. Very Precise Tracking with P-PEC FunctionThe SXP2WL mount is supplied with the modern STAR BOOK TEN controller. It offers a P-PEC function for highly precise tracking. The term 'PEC' stands for Periodic Error Correction. This system corrects errors in the mechanics, caused by periodic inaccuracies in the gear system.The P-PEC function saves your correction data even after the power is switched off, so you don't need to re-enter the data each time, allowing for faster operation and more precise tracking. Low-Noise Belt Drive System with Minimal BacklashIn conventional motor drive systems for equatorial mounts, gears are used to transmit power from the motor. However, this design can introduce a certain amount of backlash between the gears.To avoid the inaccuracies caused by this, the SXP2WL mount features a belt drive system, which significantly reduces both backlash and drive noise. Additionally, the system responds faster to any necessary corrections. 16 BearingsThe mechanical parts of the SXP2WL mount include a total of 16 bearings. The RA axis uses a set of tapered roller bearings to achieve more stability for more precise tracking. Stable Polar Altitude Block for AlignmentThe SXP2WL mount uses the same fork as the heavier AXJ mount. This new design allows for quick and stable latitude adjustment. Easy and Accurate Polar Alignment Using Reference StarsThe 6x20 polar finder scope is pre-installed. This allows you to set up the polar alignment (for both the northern and southern hemispheres). The polar finder offers a variable illuminated reticle with an automatic shut-off feature. Brightness is adjustable in 8 levels, so you can tailor it to your individual needs. The polar finder is also equipped with a direct setting using three reference stars and can achieve an accuracy of up to 3 arcminutes. Variable Mount HeadThe mount head has a diameter of 35 mm and eight threaded holes for M8 screws, arranged at 45-degree intervals. An optional accessory plate can be attached directly or in combination with an optional dovetail mounting block. In addition, the threaded holes on the mount head allow the use of mounting rails from other manufacturers. Combination of Innovative, Elegant Design and User-Friendly OperationThe stable, rigid mount body with very precise tracking has been further optimized by the P-PEC function. The SXP2WL is a highly precise and easy-to-use mount that is sure to excite any astrophotographer or observer. Special Motor Mounting for Fewer CounterweightsThe heavy RA and DEC motor units are mounted in the lower part of the declination axis, so the centre of gravity of the axis cross is below the RA and DEC axis. This means the declination body acts as a counterweight. The flat mounting head also allows the mount to be balanced with significantly fewer counterweights. Retractable Counterweight BarThe counterweight bar is made of solid stainless steel and has a diameter of 20 mm. It allows you to use all the counterweights of the SX and GP mount series. The counterweight bar is housed in the declination body. Accessory ShoeFor easy and quick polar alignment, the #35511 polar meter can be slid onto this shoe.Latitude AdjustmentThe latitude can be adjusted between 0 and 70 degrees (divided into 3 zones and adjustable +/- 15 degrees per zone for high, medium, and low latitudes). The Vixen WiFi Adapter in Detail The Vixen WiFi Adapter for EQ mounts enables you to control your Vixen mount via a smartphone or tablet. Using the free STAR BOOK Wireless smartphone app, you can navigate the skies without any cables. The app instantly transforms your mobile device into a controller for the equatorial mount. The response delay of the mount, which is often the main drawback of wireless connections, has been minimized to a level comparable to wired solutions. Reduced Power Consumption Compared to Conventional LCD ControllersThe power consumption of the mount is reduced by up to 20%, enabling longer observation periods compared to traditional wired controllers like the STAR BOOK TEN. Similar Operation to the STAR BOOK TEN ControllerThe STAR BOOK Wireless app is designed similarly to the STAR BOOK TEN controller, offering up to 259,000 celestial objects, depending on the star chart settings. Simply tap a celestial object in the object list and initiate GoTo slewing. The mount will automatically move to the selected target and bring it into the telescope's field of view. All the beloved features of the STAR BOOK TEN remain available. Comfortable OperationWhen looking through the telescope, you can operate the mount by swiping on the star chart in the app. With no buttons, you simply slide your finger across the star chart, making the mount easy to control. Extensive Astronomical Data IncludedIn addition to data on well-observed celestial objects like Messier objects, NGC objects, IC objects, the sun, moon, planets, comets, and dwarf planets, the app also includes data for other objects. High-Precision AlignmentAligning the mount with one or two stars will give you fairly accurate positioning. With three or more stars, you can achieve highly precise alignment for high magnifications. The objects will then be centered in the telescope’s field of view. Alignment information is saved and retained even when the device is powered off. If you leave the telescope in its current state after completing an observation, you can start the automatic installation with the same settings the next time. Customizable SettingsThe app offers similar customization options to the STAR BOOK TEN controller, including backlash compensation, night mode in red, autoguider support, variable GoTo speed, and LED brightness adjustment. You can also configure when the telescope tube will flip (meridian flip). Even when the object is moving south during tracking, you can prevent the telescope tube from flipping. Important InformationNot compatible with older SX mounts using the blue STAR BOOK. Technical Information on the WiFi Module32-bit CISC processor with 120 MHz CPUConnected via a D-SUB 9-pin connector like the STAR BOOK TEN to the mount.Includes a 6-pin modular connector for external autoguider operation.Supported operating systems: Android 6 or later, iOS 9.0 or later, WiFi standard: IEEE 802.11b/g/n. FEATURES SXP2 MOUNT RA gear: 73.2 mm Ø, brass gear with 180 teeth DEC gear: 73.2 mm Ø, brass gear with 180 teeth Worm gear: 9 mm Ø, brass RA & DEC axis: 40 mm Ø, carbon steel bearing, 16 bearings Counterweight bar: 20 mm Ø RA Polar finder scope: PF-LII 6x20 mm Stepper motors: 250 PPS speed, maximum 1000x sidereal rate Maximum load: 17 kg photographic without counterweight Power supply: DC 12 V, 0.45~2.2 A Dimensions: 386 x 419 x 128 mm Weight of axis cross: 13.3 kg without counterweight Counterweights: 3.7 kg, 1.9 kg FEATURES AX103S APOCROMAT Optimized for full-frame photography 103 mm aperture, 825 mm focal length, f8.0 Resolution capability: 1.13 Visual limiting magnitude: 11.8 Fully multi-coated triplet ED lens with flattener Very high sharpness and contrast Optional reducer available Backfocus without reducer: 150.0 mm Backfocus with reducer: 63.5 mm SCOPE OF DELIVERY AX103S apochromatic refractor Tube rings and carrying handle Vixen prism rail Illuminated 7x50 finder scope with 1.25-inch sleeve Flip mirror 2 SLV eyepieces, 20mm, 5mm SXP2WL mount Wireless unit Counterweights: 1.9 kg, 3.7 kg PFL-l2 illuminated polar finder with direct search Mounting tools Cigarette lighter cable Sturdy SXG-HAL 130 aluminium tripod