Vixen VSD90ss Astrograph

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)

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)

The optics of the VMC260L are significantly better than the traditional Schmidt-Cassegrain telescope. Despite its high 3000 mm focal length, it is just 650 mm long. Featuring a large 260 mm aperture, the telescope collects large amounts of light for serious professional observations and photography of the planets and countless deep-sky objects. Thanks to the dielectric mirrors, the VMV260L guarantees razor-sharp images and maximum brightness. The open lens barrels cool the telescope quicker than conventional closed Cassegrain systems. The telescope can be used with an optional 0.62x focal reducer to reduce the aperture ratio to 1:7.1. This shortens the exposure times and allows you to photograph large objects. The telescope comes with a standard dovetail bar and a carry handle that doubles up as a camera holder for night sky photography. The Finder Scope and the Vixen Flip Mirror is not included in this version ! FEATURES Very short cool-down time thanks to open lens barrel Optimised system for photography Very transportable – only 650 mm long Lightweight design – only 12.1 kg Large 260 mm aperture Built-in correction lens in front of the secondary mirror Backfocus without Reducer: 149,4 mmBackfocus with Reducer: 63,5 mmTotal weight: 12.1 kg WHAT’S INCLUDED VMC 260 telescope/lens barrel Carry handle VIXEN standard dovetail barFinder Bracket ShoeEA60 mm to 50.8 mm SX

High-performance, top-of-the-range fluorite apochromat for mobile astrophotography and observers. Thanks to its small size and lightweight design, this high-quality fluorite refractor is ideal for excursions and air travel. It displays razor sharp and bright stars across the entire field of view of the full-frame image sensor (95% illumination with 44 mm image circle). The FL55SSS turns into a fast F/4.3 astrograph with the optional flattener and focal reducer. It allows you to use extremely short exposure times and a provides a large field of view for large nebulae or comets.Note: To achieve the optimum image quality of the FL55ss, we strongly recommend the purchase of this reducer and flattener set.Despite the small aperture, the FL55SS features a high-resolution HR eyepiece that produces stunningly clear images of the moon and the bright planets. When used for astrophotography, it delivers razor-sharp images of stars that are guaranteed to impress. FEATURES Objective lenses: 55 mm fluorite Focal length: 300 mm F5.5 Resolution and limiting magnitude: 2.11, 10.5 Light-gathering power: 62x Dimensions and weight: 80 x 282 mm; 1.5 kg Adapter and connections: 31.7 mm receptacle, 60 mm thread WHAT’S INCLUDED 55 mm optical tube with fluorite APO Dovetail adapter Extension Tube 60 mmDew cap Dust covers

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

SXD2WL VC200L Cassegrain Telescope Complete Set with GoTo Mount, Tripod, and EyepiecesThis high-quality telescope set impresses with its large 200-mm Cassegrain mirror optics optimized for photography with a flattener. The telescope is manufactured in Japan and scores with its excellent workmanship, sharpness, and contrast performance. The advantage of this telescope also lies in its short, open design and its low weight. Thus, the optics cool down faster than a closed system.The VISAC primary mirror (= Vixen Sixth-Order Aspheric Cassegrain) is specially designed for astrophotography and delivers a completely flat and color-true image across the entire field of view. Spherical aberration, coma, and field curvature are absolute foreign concepts for this optic. The reason for this is the three-lens field corrector in front of the convex secondary mirror.Although the telescope is optimized for astrophotography, it can of course also be used for visual observation. A special coating technique (state-of-the-art technology) provides the optimal mirror surface for observing and photographing deep-sky objects. It allows for controlled coating and individually corrects errors on the mirrors. You will be amazed when you observe the moon's surface with its craters or Saturn with its ring system. On Jupiter, on a good night, many smaller details in the cloud bands will be visible, as well as the Great Red Spot on the planet. On moonless nights, you can observe the Andromeda Nebula, Orion Nebula, Eagle Nebula, Lagoon Nebula and many other interesting faint objects. The brighter globular clusters can be easily resolved into individual stars.This telescope set "Made in Japan" simply leaves no wishes unfulfilled. The large 60-mm eyepiece drawtube allows for the attachment of heavy cameras without tilting. In addition, the supplied flip mirror enables comfortable observation even in unfavorable observing situations and also offers a T2 thread for connecting a DSLR camera. Thus, you can observe in straight view or at a 90° angle. The carrying handle attached to the tube clamps ensures safe transport of the telescope. The sturdy metal tripod allows for a vibration-free setup of the telescope and mount even in windy weather.The SXD2WL mount is simply operated via a Wifi module with a smartphone or tablet. For user-friendly control of the mount, the free STAR BOOK Wireless app is available. This allows you to use practical functions of celestial navigation such as automatic GoTo swivelling to specific celestial objects very easily via your smartphone or tablet. As the power consumption of the conventional LCD screen (STAR BOOK TEN) is eliminated, the power consumption of the mount is reduced by up to 20%. This enables astronomical observations and astrophotography over longer periods. By tapping the desired celestial object from a list, it automatically swivels into the telescope's field of view and tracking begins. An existing STAR BOOK TEN control can also be used on this mount without any problems. Equipped with the same precision stepper motors as the flagship model, the AXD mount, the SXD2WL brings a new standard of performance and precision to the Vixen mount family. The axis cross of the mount has a photographic carrying capacity of 15 kg while weighing only 9.2 kg, making it excellent for mobile observations. Moreover, the motors located in the lower part of the mount also serve as counterweights. This means the mount requires fewer weights for balancing. Details of the SXD2 Mount Precision stepper motors and Micro-Step Motion Control System The heart of the SXD2 are the precision stepper motors, offering better performance and response than previous models. The Micro-Step Motion Control System is noted for its powerful yet very quiet driving characteristics, suitable for both fine movements and rapid swivelling. Built-in bearings The bearings of the RA and DEC axes and the worm shafts have been significantly improved to reduce the load on the motors. As a result, the motors move much more quietly than in previous models. High-precision worm gears Advanced manufacturing technologies have eliminated errors in worm gears. The edges of both the worms and worm gears are exceptionally smooth, allowing very precise tracking. Declination axis as counterweight The massive motor units are built into the lower part of the declination axis, lowering the center of gravity of the SXD2 just below the intersection point of the RA and DEC axes. This reduces the need for additional counterweights. Latitude adjustment The latitude is adjustable between 0 and 70 degrees (divided into 3 zones and adjustable +/- 15 degrees per zone, for high, medium, and low latitudes); latitude scale in 2-degree steps; fine adjustment with a tangent screw head, about 0.8 degrees per turn. Built-in PFL-II Polar Finder with Illumination The built-in 5x20 mm polar finder with a 10° field of view features a 3-star alignment system. This eliminates the tedious setting of date and time. The illuminated reticle with variable brightness and automatic shutoff is adjustable in 8 steps and illuminated in red. The alignment accuracy is 3 arc minutes. Details of the Wireless Module The Vixen Wifi Adapter for EQ mounts enables you to control your Vixen mount via a smartphone or tablet. With the STAR BOOK Wireless smartphone app (free), celestial navigation is simple and wireless. The app instantly transforms your mobile device into a control for the equatorial mount. The reaction delay of the mount, a major disadvantage of wireless connections, has been reduced to a level comparable to wired solutions. Reduced power consumption compared to traditional controls with an LCD monitor The power consumption of the mount is reduced by up to 20%, allowing for longer observations than with traditional wired controls like the STAR BOOK TEN. Operation similar to the STAR BOOK TEN control The STAR BOOK Wireless App is set up similarly to the STAR BOOK TEN control. Depending on the star chart setting, it contains up to 259,000 celestial objects. Tap a celestial object in the list and start the GoTo. The mount will now automatically move to this target and bring it into the field of view of the telescope. All popular features of the STAR BOOK TEN are retained. Convenient operation While looking through the telescope, you operate the mount by swiping on the star chart in the app. Since there are no buttons, you simply glide your finger across the star chart to easily operate the mount. Extensive astronomical data included This includes data on easily observable celestial bodies such as Messier objects, NGC objects, IC objects, as well as the sun, moon, planets, comets, and dwarf planets. High-precision alignment Alignment on one or two stars already provides a fairly accurate positioning of the mount. Alignment on three or more stars allows for extremely precise alignment of the mount for high magnifications. The objects are then positioned exactly and centrally in the field of view of your telescope. The alignment information is stored and can also be retained when the device is turned off. By leaving the telescope in its current state after an observation, without moving it, you can start the next observation with the same settings. Individual adjustment options As with the STAR BOOK TEN control, the app offers various individual settings such as gear play compensation, red night mode, autoguider, variable GoTo speed, and LED brightness. You can also set the time of reversal of the objective tube (Meridian Flip) according to your preference. Even if the object moves south during tracking, you can prevent the telescope tube from reversing. Important Information Not usable on old SX mounts with the old blue Star Book Technical Information about the Wifi Module CPU with 32-bit CISC processor at 120 MHz The unit connects to the mount via a D-SUB 9PIN connector, as with the STAR BOOK TEN. It has a 6-pin, 6-wire modular connector for external autoguider operation. Supported operating systems are Android 6 or higher, iOS 9.0 or higher, WLAN standard: IEEE 802.11b/g/n FEATURES VC200L Telescope Photographically optimized system with built-in field flattener lens (Flattener) Revolutionary coating technology High light-gathering capacity (816x) 200-mm aperture and 1,800-mm focal length (f/9) Resolution/Limit magnitude: 0.58/13.3 mag Optional reducer available Backfocus without reducer: 142.9 mm Backfocus with reducer: 63.5 mm Made in Japan Weight: 6.9 kg SXD2WL Mount RA gear ring: 180 teeth DEC gear ring: 180 teeth Axis material and diameter: Carbon steel / Decl. 35 mm, RA 40 mm Polar finder telescope: 6x20 mm, PFL-II polar finder Height fine adjustment: 0° to 70°, (fine adjustment +/- 15°, height) Counterweight bar: 20 mm diameter Azimuth adjustment: worm fine adjustment Power supply: DC12 V; 0.4~1.7 A Maximum load: 15 kg, photographic, without counterweight Counterweight: 1x 1.9 kg and 1x 3.7 kg tripod connection: 45 mm pin Dimensions: 36 cm (H) x 12 cm (W) x 36 cm (L) Weight: 8.8 kg (19.4 lb), without counterweight 32-bit CISC processor at 120 MHz Operating system: Android 6 or higher, iOS 9.0 or higher Connection: D-SUB 9PIN connector Autoguider input ST4 Power consumption SXD2WL+Wireless unit: DC12V / 0.3–2.0 A (load 10 kg), 0.4–2.2 A (load 15 kg) SCOPE OF DELIVERY SXD2WL Mount Wireless module Counterweight: 1.9 kg and 3.7 kg illuminated polar finder telescope Mounting tools Car cigarette lighter cable VC200L Cassegrain Telescope 2 Eyepieces (SLV 20, SLV 9) Tube clamps Dovetail mount 7x50 finder, illuminated SXG Aluminium tripod

SXP2WL SD115SII Complete Telescope Set with Wifi GoTo Mount, Tripod, and EyepiecesThis high-quality apochromatic refractor telescope-set impresses with its 115-mm-SD optics. The telescope is made in Japan and stands out with its excellent craftsmanship, sharpness, and contrast performance. The advantage of this SD refractor lies in its lightweight design and ability to produce color-pure and contrast-rich images. You'll be amazed when you observe the moon’s surface with its craters or Saturn with its ring system. On Jupiter, during a good night, you’ll even see the two bright cloud bands and many smaller details, such as the Great Red Spot on the planet. On moonless nights, you can observe the Andromeda Nebula, Orion Nebula, Eagle Nebula, Lagoon Nebula, and many more fascinating objects. Fainter celestial objects become visible thanks to this 115 mm wide aperture under a good sky.This telescope set "Made in Japan" leaves nothing to be desired. The FPL53 glass used in the telescope reproduces an extremely clear and sharp image by nearly eliminating any residual color errors. The SD glass is designed to bring all rays – violet, red, blue, yellow, and green – to the same plane. This special lens material reduces chromatic aberration across all colors. The new Vixen SD115SII has no spacers, which significantly improves image quality, especially for bright stars. In photographic images, no spikes are visible on the stars, which were previously caused by spacers.In combination with the optional SD Reducer HD Kit or SD Flattener HD (not included), this refractor telescope provides an image circle of 44 mm for full-frame DSLR cameras. The older ED81SII, ED103S, and ED115S refractors were originally developed for visual observers and photographers using APS-C cameras. However, the new SD series, with the use of new internal baffles, has been optimized for full-frame cameras. The large 60-mm focuser also allows for the attachment of heavy cameras without tilting. Additionally, the included flip mirror enables comfortable observation even in awkward situations and offers a T2 thread for attaching a DSLR camera. You can observe straight through or at a 90° angle. The carrying handle attached to the tube rings ensures a secure grip when transporting the telescope. The sturdy metal tripod ensures vibration-free mounting of the telescope and mount even in windy conditions. The SXP2WL mount is easily operated via a WiFi module with a smartphone or tablet. The free STAR BOOK Wireless app provides user-friendly mount control. With this app, you can use convenient celestial navigation functions such as automatic GoTo slewing to specific celestial objects easily through your smartphone or tablet. Since the conventional LCD screen (STAR BOOK TEN) is no longer required, the power consumption of the mount is reduced by up to 20%. This allows for longer periods of astronomical observation and astrophotography.Select the desired celestial object from a list, and it will be automatically slewed into the telescope’s field of view, and tracking begins. An existing STAR BOOK TEN controller can also be used with this mount without any issues. Equipped with the same precision stepper motors as the top model, the AXD mount, the SXP2WL sets a new standard of performance and precision in the Vixen mount family.The cross-axis of the SXP2 mount has a photographic payload capacity of 17 kg and weighs only 13.3 kg, making it ideal for mobile observations. Additionally, the motors in the lower part of the mount also act as counterweights, reducing the need for additional weights. The SXP2 mount features larger ball bearings than previous models to enhance accuracy and load capacity. The mount housing is also characterized by greater material thickness. To make the polar block even more stable, the cross-axis is securely clamped into a fork mount. The SXP2 Mount in Detail Stronger Mount BodyThe SXP2 mount is equipped with larger bearings than previous models to increase accuracy and load capacity. Additionally, the mount body is characterized by a thicker material. To further stabilize the polar block, the cross-axis is securely clamped into a fork mount. Very Precise Tracking with P-PEC FunctionThe SXP2 mount comes with the modern STAR BOOK TEN controller. It offers the P-PEC function for particularly precise tracking. "PEC" stands for "Periodic Error Correction". The system corrects mechanical errors caused by periodic gear errors. The P-PEC function available for the SXP2 equatorial mount is an enhancement of the PEC function. The P-PEC function stores your correction data even after the mount has been powered off. This means you do not need to re-enter the data every 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 driven by the motor. However, this design has the disadvantage of creating some backlash between the gears. To avoid the resulting inaccuracies, the SXP2 mount features a belt drive system. This significantly reduces both gear backlash and drive noise. In addition, the mount responds faster when corrections are needed. 16 BearingsThe mechanical parts of the SXP2 mount contain a total of 16 bearings. The RA axis is equipped with a set of tapered roller bearings to provide more stability for precise tracking. Stable Altitude Adjustment Block for AlignmentThe SXP2 mount uses the same fork as the heavier AXJ mount. This new design allows for quick and stable altitude adjustments. Easy and Precise Polar Alignment Using Reference StarsThe 6x20 polar finder is pre-installed. This allows for polar alignment in both the Northern and Southern Hemispheres. The polar finder features a variable illuminated reticle with an automatic shut-off function. The brightness can be adjusted in 8 levels to suit your individual needs. Additionally, the polar finder is equipped with a direct alignment system using three reference stars and can achieve accuracy up to 3 arc minutes. Variable Mounting HeadThe mounting head has a diameter of 35 mm and eight threaded holes for M8 screws, arranged 45 degrees apart. An optional accessory plate can be attached directly or in combination with an optional mounting block for dovetail plates. The threaded holes in the mounting head also allow the use of rails from other manufacturers. Combination of Innovative, Elegant Design and User-Friendly Operation The stable, rigid mount body with very precise tracking has been further optimized by the P-PEC function. This makes the SXP2 a highly precise and easy-to-use mount, sure to delight any astrophotographer or observer. Special Motor Positioning for Fewer CounterweightsThe heavy RA and DEC motor units are located in the lower part of the declination axis, placing the center of gravity of the cross-axis below the RA and DEC axis. This allows the declination body to act as a counterweight. The flat mounting head also enables 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 is compatible with all counterweights from the SX and GP mount series. The counterweight bar is housed in the declination body. Accessory Shoe The #35511 Polar Meter can be easily and quickly attached to this shoe for polar alignment. Latitude Adjustment The latitude can be adjusted between 0 and 70 degrees (divided into 3 zones and adjustable +/- 15 degrees per zone, for high, mid, and low latitudes).The Vixen Wifi Adapter in Detail The Vixen Wifi Adapter for EQ mounts allows you to control your Vixen mount via a smartphone or tablet. This enables you to use the STAR BOOK Wireless smartphone app (free) for celestial navigation without cabling. The app quickly turns your mobile device into a controller for the equatorial mount. The mount’s response delay, often considered the biggest drawback of wireless connections, has been reduced to a level comparable to wired solutions. Reduced Power Consumption Compared to Traditional Controllers with LCD Monitor The power consumption of the mount is reduced by up to 20%, enabling longer observation sessions compared to traditional wired controllers like the STAR BOOK TEN. Operation Similar to the STAR BOOK TEN Controller The STAR BOOK Wireless App is similarly structured to the STAR BOOK TEN controller. Depending on the star chart settings, it contains up to 259,000 celestial objects. Simply tap on an object in the list and start the GoTo. The mount will automatically move to the target and bring it into the telescope’s field of view. All the popular features of the STAR BOOK TEN remain available. Comfortable Operation While looking through the telescope, you can operate the mount by swiping on the app’s star chart. Since there are no buttons, you simply glide your finger over the star chart to easily control the mount. Extensive Astronomical Data Included This includes data on well-observed celestial bodies such as Messier objects, NGC objects, IC objects, as well as the sun, moon, planets, comets, and dwarf planets. High-Precision Alignment By aligning with one or two stars, you can achieve fairly accurate mount positioning. By aligning with three or more stars, a highly precise alignment for high magnifications can be achieved. Objects are then targeted precisely and centered in your telescope’s field of view. Alignment data is saved and can be retained even when the device is powered off. By leaving the telescope in its current state after an observation without moving it, you can start the automatic installation with the same settings during the next observation. Customizable Settings Like the STAR BOOK TEN controller, the app offers various individual settings such as gear backlash compensation, red night mode, autoguider, variable GoTo speed, and LED brightness. You can also set the timing of the optical tube flip (meridian flip) as desired. Even if the object moves south during tracking, you can prevent the telescope tube from flipping. Important Information Not compatible with older SX mounts using the old blue Star Book. Technical Information on the Wifi Module 32-bit CISC processor CPU 120 MHz The unit is connected to the mount via a D-SUB 9PIN connector, as with the STAR BOOK TEN. It features a 6-pin 6-core modular plug for external autoguider operation. Supported operating systems are Android 6 or higher, iOS 9.0 or higher, WiFi standard: IEEE 802.11b/g/n.FEATURESRA worm wheel: 73.2 mm Ø, brass wheel with 180 teethDEC worm wheel: 73.2 mm Ø, brass wheel with 180 teethWorm shaft: 9 mm Ø, brassRA & DEC axis: 40 mm Ø, carbon steel bearings, 16 bearingsCounterweight shaft: 20 mm Ø RAPolar finder scope: PF-LII 6x20 mmStepper motors: 250 PPS speed, maximum 1000x sidereal rateMaximum payload: 17 kg for photography without counterweightPower supply: DC12 V 0.45~2.2 ADimensions: 386 x 419 x 128 mmWeight of axis cross: 13.3 kg without counterweightCounterweights: 3.7 kg, 1.9 kgObjective lens: D=115 mm, multi-coated2-lens SD apochromat without spacersNo spikes visible on starsFocal length: 890 mm (f7.7)Resolution and limiting magnitude: 1.01 arc seconds; 12.1Light gathering power: approx. 270x more than the human eyeDimensions and weight: 125 mm dia x 930 mm; 4.4 kg without accessoriesFinder scope: 7x50 illuminatedAdapter and connections: 60 mm thread, 50.8 mm and 31.7 mm sleeve, T-ring threadConnection: 50.8 mm and 31.7 mm sleeve with flip mirrorPhotography: Prime focus and eyepiece projectionSCOPE OF DELIVERYSXP2WL mountSD115S II apochromat7x50 finder, illuminated with 1.25-inch eyepiece holderSXG HAL130 tripodSXG half-pillarWifi module2 counterweights: 1.9 kg and 3.7 kg9-pin D-sub cableMounting toolPolar finder PFL-IICigarette lighter cable