Vixen SD115S apochromatic Refractor

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

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

High-performance flattener and reducer set connection rings for Vixen telescopes SD81S, SD103S and SD115S, as well as the ED predecessor series. High-performance flattener and reducer set The kit consists of a high-performance flattener, a reducer for reducing the focal length, and connection rings (distance ring SD81, EX Tube 66), which were developed for prime-focus astrophotography with the SD81S, SD103S and SD115S telescopes. The flattener and the 0.79x reducer deliver a significant increase in telescope performance and image quality. You obtain a flat and sharp image until the edges, including with a full-frame DSLR camera. Ultra-sharp image over the entire field of view of the DSLR full-frame sensor The SD flattener improves the image quality to the edge of the field of view without changing the original focal length of the telescope. The field of view of the DSLR camera with a full-frame sensor is fully illuminated (44 mm), ensuring that stars appear sharp until the edges of the image. When used in conjunction with the Reducer HD, the focal length is reduced by a factor of 0.79 (f/7.7→6.1) whilst maintaining the 44 mm illumination. High-contrast AS coating The anti-reflex AS coating, which is also used on our high-end VSD 100 f/3.8 astrograph, delivers a high light transmission of 99.9% per lens surface. Loss of light, ghosting and scattered light images are virtually eliminated thanks to the completely matte interior coating. FEATURES Reduces the focal length by a factor of 0.79 Designed for full-frame cameras High-contrast AS coating Ultra-sharp image over the entire field of view Designed for full-frame DSLR cameras Illumination: 44 mm Correct distance to chip: 63.5 mm Designed for the SD81S, SD103S and SD115S Also suitable for the ED81S, ED103S and ED 115S DELIVERY CONTENT SD Flattener HD Reducer HD Adapter ring for SD81 66 mm EX extension tube Dust caps

Vixen has developed a new generation of SX mounts for demanding observers and astrophotographers. The SXD2WL mount is simply operated via a Wifi module with a smartphone or tablet. By controlling the mount with your smartphone using the free STAR BOOK Wireless app, you can easily use sky navigation functions such as automatic GoTo panning of celestial objects via your smartphone or tablet. By eliminating the power consumption of the conventional LCD (STAR BOOK TEN), the power consumption on the mount is reduced by up to 20%, thus enabling longer astronomical observation and astrophotography. When the desired celestial object is selected from a list, it is automatically panned into the telescope's field of view and tracking begins. An existing STAR BOOK TEN controller can also be used on this mount without any problems. Equipped with the same precision stepper motors as the top model, the AXD mount, the SXD2WL brings a new standard of performance and precision to the Vixen mount family. With a photographic load capacity of 15 kg, the axis cross of the mount weighs just 9.2 kg making it ideal for mobile observations. In addition, the motors mounted in the lower part of the mount also serve as a counterweight, so the mount requires fewer weights for balancing. The SXD2 mount in detail Precision stepper motors and micro-step motion control system At the heart of the SXD2 are the precision stepper motors, which offer better performance and response than previous models. The micro-step motion control system offers powerful and yet very smooth drive characteristics, which are given both in fine movements and in fast pans. 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 smoothly than in previous models. High-precision worm gears High-precision processing technologies eliminate worm gear errors. The edges of the two worms and worm wheels are particularly smooth, enabling very precise tracking. Declination axis as counterweight The solid motor units are installed in the lower part of the declination axis so that the center of gravity of the SXD2 is below the intersection point of the RA and DEC axes. This means you need fewer additional counterweights. Latitude setting 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 increments; fine adjustment with a tangent screw head, approx. 0.8 degrees per turn. Built-in PFL-II polar finder with illumination The built-in 5x20mm polar finder with 10° field of view has a 3-star alignment system. This eliminates the inconvenience of setting the date and original time. The illuminated reticle with variable brightness and automatic switch-off is adjustable in 8 levels and illuminated in red. The adjustment accuracy is 3 arc minutes. The wireless module in detail The Vixen Wifi adapter for EQ mounts allows you to control your Vixen mount via a smartphone or tablet. With the smartphone app STAR BOOK Wireless (free of charge) you can navigate the sky without any cables. The app turns your smartphone or tablet into a control unit for the equatorial mount in no time at all. The response delay of the mount, which is considered the biggest disadvantage of wireless connections, has been reduced to a level comparable to wired connections. Reduced power consumption compared to conventional controllers with LCD monitor The power consumption of the mount is reduced by up to 20%, allowing longer observations than with conventional wired controllers such as the STAR BOOK TEN. Operation similar to the STAR BOOK TEN controller. The STAR BOOK Wireless app has a similar structure to the STAR BOOK TEN controller. Depending on the star map setting, it contains up to 259,000 celestial objects. Tap on a celestial object in the object list and start the GoTo. The mount will now automatically move to this target and bring it into the telescope's field of view. All the popular features of the STAR BOOK TEN are retained Convenient operation When looking through the telescope operate the mount by swiping on the app's star chart. As there are no buttons, simply slide your finger over the star chart to operate the mount conveniently. Extensive astronomical data included In addition to data on easily observable celestial bodies such as Messier objects, NGC objects and IC objects, this also includes the sun, moon, planets, comets and dwarf planets. High-precision alignment By aligning the mount to one or two stars, you can already achieve fairly precise positioning. By aligning the mount to three or more stars, you can achieve high-precision alignment of the mount for high magnifications. The objects are then approached precisely and centrally in your telescope's field of view. The alignment information is saved and can be retained even when the device is switched off. By leaving the telescope in its current state after completing an observation without moving it, you can start the automatic installation with the same settings for the next observation.  Individual setting options As with the STAR BOOK TEN control unit, the app offers various individual settings, such as gear backlash compensation, night mode in red, autoguider and variable GoTo speed and LED brightness. You can also set the timing of the reversal of the objective tube (meridian flip) as desired. Even if the object moves to the south during tracking, you can prevent the telescope tube from reversing. Important note: Cannot be used on old SX mounts with the old blue Star Book! Technical information about the Wifi module: CPU with 32-bit CISC processor 120 MHz The unit is connected to the mount via a D-SUB 9PIN connector as with the STAR BOOK TEN. It has a 6-pin 6-wire modular plug for external autoguider operation. Supported operating systems are Android 6 or higher, iOS 9.0 or higher, WLAN standard: IEEE 802.11b/g/n. FEATURESRA sprocket: 180 teeth DEC sprocket: 180 teeth Shaft material and diameter: Carbon steel / Decl. 35 mm, RA 40 mm thickness Polar finder scope: 6x20 mm, PFL-II polar finder Fine height adjustment: 0° to 70°, (fine adjustment +/- 15°, height) Backsight rod: 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 spigot 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 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 DELIVERYSXD2WL EQ mount Wireless unit 2 counterweights: 1.9 kg and 3.7 kg Mounting tools Pole finder PFL-II Cigarette lighter cable

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)

Highly corrected 127mm air-spaced triplet apochromat (with three lenses) and carbon fibre tube and a 2.5" high-precision HEXAFOC focuser. NEW: Now with hybrid viewfinder shoe to accept different viewfinder holders.    Apochromats are the ultimate choice in small to medium sized telescopes: the combination of compactness, transportability, very high image contrast and sharpness together with excellent astrophotographic performance 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 CF Hex represents another major improvement in this field - the overall correction (colour 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 excellent apochromat is a very versatile telescope: its reasonably fast f-ratio makes for short exposure times when imaging deep sky objects, but it is still of a significant focal length, making higher power planetary and lunar observation comfortable without having to use really high magnification eyepieces. 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 come together to deliver a telescope that offers observing and imaging at the highest level. The Carbon Fibre construction allows this telescope to be used on lower capacity mounts, increasing convenience and portability. Although there are smaller instruments available, the combination of aperture and optical excellence at such a low weight and compact tube makes this an excellent travel scope. The well-designed 2.5" HEXAFOC focuser with 10:1 reduction is perfect for both visual and astrophotographic use - the large inner diameter of 65mm prevents vignetting by the focuser when the telescope is used for astrophotography with large sensors (full frame and above).We offer the very popular EXPLORE SCIENTIFIC Triplet ED APO Refractors in 3 different product lines:Essential Line: HOYA FCD-1 Glass lens, AL-Tube, 2.0" Rack & Pinion Focuser 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 Glass lens, AL/CF-Tube, 2.5" HEXAFOC Focuser 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 Focuser with 1:10, 2.0" Star Diagonal 99% Reflectivity (see Part No. 0112165(CF))SPECIFICATIONSAperture: 127mmFocal Length: 952mmFocal ratio: f/7.5Design: Apochromat with three lenses, two air spaces and FCD-100 glassWeight: 5.2kg, lightweight due to carbon fibre tubeBackfocus: 150mm above 2" adaptorHybrid viewfinder shoe to accept different viewfinder holdersWHAT'S INCLUDED Optical tube with retractable dew-shield2.5" HEX focuser with 1:10 gear reduction  2" Star Diagonal 99% reflectivityTube rings with dovetail plate and handle Extension tubes for focuser (2pcs)Dust caps for front-lens and focuserHybrid viewfinder shoe 

A new apochromatic refractor with high performance Super-ED glass (= SD). The FPL53 glass reproduces an extremely clear and sharp image by an exceptionally high degree of elimination of residual chromatic aberrations. The advantage of these SD refractors is their short length and low weight. 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 colors. In combination with the new optional SD Reducer HD Kit or SD Flattener HD, these refractors allow illumination with a 44mm image circle for full format SLR cameras. FEATURES Lens diameter: 103mm Type of coating: Multi-coated Focal length: 795 mm (f7.7) Resolution: 1.13 arc seconds Visual limit value: 11.8 mag Max. magnification: 206x Tube length: 810mm Tube diameter: 115mm Tube weight: 5,4kg Viewfinder telescope: 7x50 with illumination unit Adapter 7.0 degrees FOV included Connections/adapters: thread 60mm and 31.7mm for T-ring Eyepiece adapter: 50.8mm (2 inches) and 31.7mm (1.25 inches)Backfocus without Reducer: 150,4 mmBackfocus with Reducer: 63,5 mmFlip mirror included SCOPE OF DELIVERY Optical Tube Tube rings with carrying handle GP dovetail adapter Flip mirror Dust covers