Vixen SXD2WL SD115SII telescope set

Complete telescope set SXD2WL SD115SII with eyepieces, tripod and state-of-the-art GoTo mount with control via smartphone or tablet

Complete SD115SII GoTo telescope set with all necessary accessories
Apochromatic 115 mm high-performance refractor with FPL53 ED glass
Reduces chromatic aberration to an absolute minimum
Guarantees extremely high contrast and excellent sharpness
Fully coated 115 mm SD lenses without spacers
State-of-the-art SXD2WL equatorial GoTo mount with WiFi and 15 kg load capacity
Easy operation via smartphone or tablet without tangled cables
Comfortable GoTo panning by tapping the display
Extensive object database with up to 259,000 celestial objects
Total weight: 28.7 kg

Product information "Vixen SXD2WL SD115SII Telescope set"
SXD2WL SD115SII telescope complete set with GoTo mount, tripod and eyepieces

This high-quality apochromatic refractor telescope set impresses with its 115 mm SD optics. The telescope is made in Japan and scores with its excellent workmanship, sharpness and contrast performance. The advantage of this SD refractor is its low weight and a very color-pure and high-contrast image. You will be amazed when you use it to observe the surface of the moon with its craters or Saturn with its ring system. On a good night, the two bright cloud bands and many smaller details on Jupiter are also visible, such as the large red spot on the planet. On moonless nights, you can observe the Andromeda Nebula, Orion Nebula, Eagle Nebula, Lagoon Nebula and many other interesting objects. But even fainter celestial objects are visible with this large aperture of 115 mm under a good sky.

This telescope set "Made in Japan" simply leaves nothing to be desired. The FPL53 glass built into the telescope reproduces an extremely clear and sharp image by eliminating residual color errors to an exceptionally high degree. The SD glass is designed to bring all rays - violet, red, blue, yellow and green - together very precisely on the same plane. The special lens material thus reduces chromatic aberration across all colors. The new Vixen SD115SII no longer uses spacer plates, which leads to significantly better image quality, especially with bright stars. In photographic images, spikes on the stars that would otherwise be caused by the spacer plates are no longer visible.
In combination with the optional SD Reducer HD Kit or SD Flattener HD (not included), this refractor telescope enables 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 with APS-C cameras. However, the new SD series is also optimized for use with full-frame cameras thanks to the use of new internal apertures. The large 60 mm eyepiece extension also allows heavy cameras to be attached without tipping over. Furthermore, the folding mirror supplied allows comfortable observation even in unfavorable observation situations and also offers a T2 thread for connecting a DSLR camera. This allows you to observe in a straight line or at a 90° angle. The carrying handle attached to the tube clamps ensures a secure hold when transporting the telescope. The sturdy metal tripod enables vibration-free recording of the telescope and mount even in windy weather.

The SXD2WL mount is simply operated via a WiFi module with a smartphone or tablet. The free STAR BOOK Wireless app is available for user-friendly control of the mount. This allows you to use practical celestial navigation functions such as automatic GoTo panning to specific celestial objects easily via your smartphone or tablet. Since 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 of time.

If you tap the desired celestial object from a list, it is automatically panned into the field of view of the telescope 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 top model, the AXD mount, the SXD2WL brings a new standard of performance and precision to the Vixen mount family.

The mount's axis cross is just 9.2 kg light with a photographic load capacity of 15 kg, making it ideal for mobile observations. In addition, the motors mounted in the lower part of the mount also serve as a counterweight. This means that the mount needs less weight to compensate.

The SXD2 mount in detail

Precision stepper motors and micro-step motion control system
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 scores with powerful yet very quiet drive properties, which are present in both fine movements and fast panning.

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. This means that the motors move much more smoothly than in previous models.

High-precision worm gears
High-precision processing technologies eliminate errors in the worm gears. The edges of the two worms and worm gears are particularly smooth and thus enable very precise tracking.

Declination axis as counterweight
The massive 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 5x20 mm polar finder with 10° field of view has a 3-star alignment system. This eliminates the annoying task of setting the date and time. The illuminated reticle with variable brightness and automatic shutdown can be adjusted in 8 levels and is illuminated in red. The setting 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. This allows you to navigate the sky without any cables using the STAR BOOK Wireless smartphone app (free). The app transforms your mobile device into a controller 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 solutions.

Reduced power consumption compared to conventional controls with LCD monitor
The power consumption of the mount is reduced by up to 20%, allowing longer observations than with conventional wired controls such as the STAR BOOK TEN.

Operation similar to the STAR BOOK TEN control system
The STAR BOOK Wireless app is structured in a similar way to what you already know from the STAR BOOK TEN control system. 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 now automatically moves to this target and brings it into the field of view of the telescope. All of the popular features of the STAR BOOK TEN are retained.

Convenient operation
When looking through the telescope, you operate the mount by swiping on the app's star map. Since there are no buttons, you simply slide your finger over the star map and can thus conveniently operate the mount.

Extensive astronomical data included
In addition to data on easily observable celestial bodies such as Messier objects, NGC objects, IC objects, this also includes the sun, moon, planets, comets and dwarf planets.

High-precision alignment
By aligning to one or two stars, you can already achieve a fairly precise positioning of the mount. By aligning to three or more stars, a highly precise alignment of the mount can be carried out for high magnifications. The objects are then moved exactly and centrally in the field of view of your telescope. 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 the next time you observe.

Individual setting options
As with the STAR BOOK TEN control, the app offers various individual settings such as gear play compensation, night mode in red, autoguider as well as variable GoTo speed and LED brightness. You can also set the time of the lens tube reversal (meridian flip) as desired. 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 on the WiFi module
CPU with 32-bit CISC processor 120 MHz
The unit is connected to the mount via a D-SUB 9PIN connector like 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

SD115SII telescope

Objective lens: D=115 mm, multi-coated / fully 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 arc seconds; 12.1
Light gathering power: approx. 270x more than the human eye
Dimensions and weight: 125 mm dia x 930 mm; 4.4 kg without accessories
Finderscope: 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
Photography: primary focus and eyepiece projection

SXD2WL mount

RA gear ring: 180 teeth
DEC gear ring: 180 teeth
Axle material and diameter: Carbon steel / Dec. 35 mm, RA 40 mm thickness
Polar finder scope: 6x20 mm, PFL-II polar finder
Altitude fine adjustment: 0° to 70°, (fine adjustment +/- 15°, altitude)
Counterweight 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 DELIVERY
SXD2WL mount
Wireless unit
Counterweight: 1.9 kg and 3.7 kg
Polar finder telescope, illuminated
Assembly tool
Cigarette lighter cable
SD115SII lens telescope
Folding mirror
2 eyepieces (SLV 20, SLV 5)
Tube clamps
Dovetail mount
7x50 finder, illuminated
SXG aluminum tripod

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Mounting type [telescopes]: German/equatorial mount with GoTo
Target group [telescopes]: Advanced, specialists and research, visual observers
Tripod material 3): aluminum
Connection thread type: 60 mm
Transportability: normal
Product family [telescopes]: lens telescope
Type of coating: Full multi-layer coating
Coating color: green
Finder scope: 7 x 50
Color: white
Dust cover: for front lens and eyepiece holder
Front lens or correction plate material: Ohara Japan FPL-53 ED glass
Optical design: Apochromatic refractor

Product and safety information

Manufacturer:
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact:
www.bresser.de