Vixen extension sleeve 42–50.8 mm

Designed as a complement to the AXD2 equatorial mount, the AXJ mount offers outstanding durability and precision. The AXJ mount can also be used on AXD-TR102 tripods with an adapter. Periodic errors on mounts are usually measured and corrected by the user. Unlike the old StarBook controller, the STAR BOOK TEN controller saves these errors permanently. The periodic error of the mount is measured in the factory (total of 12 points per 30 degrees worm gear) and corrected before delivery. This is known as V-PEC and functions automatically as soon as you use the mount. It delivers an accuracy of +/- 4.0 arc seconds. You can increase the tracking accuracy further by saving your own recorded periodic errors. Vixen uses a new Belt-drive system in the AXJ mount. The gear drive was replaced with a toothed belt drive. This gives the mount a quicker reaction time and lower backlash. It also helps to minimize noise. The 6x20 polar finder scope is pre-installed. This allows the user to configure the polar alignment (for both the northern and southern hemispheres). The polar finder scope has a variable illuminated reticle with an automatic power-off function. The brightness can be adjusted in 8 levels so that the user can configure the desired brightness. SETTING ACCURACY OF LESS THAN 3 ARC MINUTES The dark field illumination (red LED) turns on when the push button is pressed. The reticle also lights up in red so that the observer can recognize and align stars in the background of the reticle. The light turns off automatically after a few minutes to save battery power. 2 bearing sets (4 pieces) are used for the shaft of the RA axis. Thanks to the newly developed EQ design, the ZXJ mount has a higher load capacity of 22 kg. As the motors, worm shaft and worm gear are located in the lower part of the mount, fewer counterweights are required than with conventional mounts. The STAR BOOK TEN controller is a modern control system with a high-resolution colour monitor. The STAR BOOK TEN system contains more than 272,000 celestial objects, including 260,000 stars from the SAO catalogue, 109 Messier objects, 7840 NGC objects and 5380 IC objects, as well the soon, moon and planets. Objects can be accessed by name, and information such as images and data can be defined separately. FEATURES +/-4.0 arc seconds with V-PEC V-PEC (Vixen-Permanent Periodic Error Correction) Belt drive system (prevents backlash and minimizes noise) 14 ball bearings Polar alignment (variable fork fix type) Polar finder with reference star alignment STAR BOOK TEN controller with autoguider input Retractable counterweight bar WHAT’S INCLUDED AXJ mount Starbook Ten controller 2 counterweights (3.7 kg and 1.5 kg) GoTo mount with Star Book Ten controller 22 kg load (photographic)

NEW – now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. Great telescope for night and solar observation.Excellent for entering into the hobby of astronomy: 90 mm aperture delivers 200 times more light than the naked eye! Observe craters, valleys and rims on the moon from nearly 400,000 km away just as you would look out of the window of a spaceship! The BRESSER MESSIER AR-90s does not only provide highly detailed views of the moon: Gaze at the division of the rings of Saturn millions of kilometers away or explore the Great Red Spot of Jupiter, a giant tornado in Jupiter's atmosphere. Watch the seasons on Mars and find the sickle of Venus.Richfield telescope with a short focal length of 500 mm. Suitable for traveling and to observe large open star clusters and the Milky Way. The MESSIER AR-90s gives you images that are many times brighter than the instrument Galileo Galilei was using for his famous explorations almost 400 years ago. This telescope is an optical tube without mount and tripod. CHARACTERISTICS Optical design: refractor telescopeLens diameter: 90 mm / focal length: 500 mm / F/5.5Maximum recommended magnification: 180xTelescope for night and solar observation 6x30 viewfinder with crosshair eyepiece Optimised finder mount for comfortable viewing 31.7 mm (1.25'') zenith mirror Smartphone adapter for celestial navigation includedSCOPE OF DELIVERY Optical tube 26mm Super Plössl eyepiece (31.7 mm / 1.25") 31.7 mm (1.25") zenith mirror 6x30 optical viewfinder Rotatable star map Aperture solar filter Smartphone adapter for celestial navigation Astronomy PC software Stellarium (via download)

This smartphone holder is designed for smartphones with a width of 55 - 85 mm. The holder can be secured to tripods or selfie stick via the two ¼’’ threads. FEATURES Holder for smartphones with a width of 55-85 mm Protective inner surface made of rubber (on sides) and light foam padding (on base) Two ¼’’ threads for flexible mounting on tripods or selfie sticks Strong tension spring, easy to use, secure hold WHAT’S INCLUDED 1x smartphone holder

Enables you to connect the 2" Feathertouch Focuser FTF2020BCR to the EXPLORE SCIENTIFIC and BRESSER telescopes that are equipped with a 2,5" Hexafoc or 2,5" Hexafoc DeLuxe. The focuser is not included - see 0625714 Feathertouch FTF2020BCR. FEATURES Adaptor for retrofitting a 2" Feathertouch Focuser FTF2020BCR Suitable for EXPLORE SCIENTIFIC and BRESSER telescopes with a 2,5" Hexafoc or 2,5" Hexafoc DeLuxe Focuser not included SCOPE OF DELIVERY 1x Adaptor for 2" FT-Focuser on tubes with 2.5" HEX

Extension tube with 2" plug diameter and an extension factor of 35mm. A ring clamp ensures an optimal attachement of 2" accessories. The blackened and ridged inside effectively prevents reflections. Also a 2" filter thread is inside.

Featuring an improved design and optical properties, this compact field corrected Maksutov-Cassegrain system is Vixen's answer to Schmidt Cassegrain and more conventional Maksutov Telescopes. Instead of a heavy corrector plate, the Meniscus corrector is located directly in front of the secondary mirror. As a result, the Field-Maksutov does not dew up easily, as most conventional SCT s and Maksutovs do, when exposed to humid air.  Thanks to the VMC's open tube system, the optics cool down quickly, ensuring that the telescope is ready for use in no time - again offering advantages over traditional Schmidts and Maksutovs, which can take a long time to acclimatise and reach thermal equilibrium. The long focal length of the VMC allows you to make detailed observations of planets, distant galaxies, individual lunar craters and mountains and many other celestial objects.  The mirror is manufactured using an advanced coating deposition technique, normally reserved for research-grade instruments - ensuring an extremely smooth and precisely-finished optical surface.  This, combined with the secondary corrector delivers extremely pleasing visual and photographic performance, with a very flat field.  Unlike the primary mirrors in many rival SCTs and Maksutovs, the VMC200L's primary is fixed and doesn't travel on a focuser baffle, adding to stability and as a result this telescope does not suffer from "mirror flop" or focus shift.The focuser is a conventional, smooth-running single speed rack and pinion design, which ensures stability, even at high loading.  It can be simply upgraded to dual speed use for finer focus control with the X000143 Vixen Dual-Speed-Focuser, if required.The telescope is supplied with a standard Vixen profile mounting dovetail bar and is also supplied with a carry handle, which makes transport and mounting much easier.  The carry handle can also double up as a mounting platform for other accessories, if required.The VMC200L is also supplied with Vixen's superb 7x50mm illuminated finderscope, with variable brightness control, to help you guide the telescope accurately to targets.Last, but not least, is the inclusion of Vixen's extremely useful flip mirror system, which allows for mutual mounting of 1.25" eyepieces or accessories.  Both eyepiece holders can be unscrewed, revealing a standard T2 mounting thread, which allows easy mounting of many cameras or other photographic accessories to either port.  The ability to be able to flip simply between visual use and a camera is of great help when trying to centre and image compact targets - speeding up acquisition of targets and making better use of your time under the night sky.FEATURES 200 mm mirror Focal length: 1950 mm (f9.75) Resolution and limiting magnitude: 0.45 arc seconds; 13.3 Light-gathering power: 816x Backfocus without Reducer: 144.9 mmBackfocus with Reducer: 63.5 mm Dimensions and weight: 232 x 510, 6.8 kg Adapter and connections: 60 mm thread WHAT’S INCLUDED Dovetail bar Flip mirror Carry handle 7x50 viewfinder, illuminated

Artistic lightning highlights in photography and videography are easily possible with the Fresnel lens accessory.With the Bresser Fresnel attachment lens for various studio lamps with Bowens connection, you can conjure up a lightning effect that is often found in film and theatre.The innovative and rotatable design of the BRESSER FRESENEL lens provides an innovative user experience comparable to a camera lens. Simply place it on an LED studio light and adjust the light focus of the Fresnel lens steplessly from 12 to 40 degrees, amplifying the light output by factor 2. The modern technology made of high-quality plastics prevents stray light and also withstands high temperatures.PROPERTIESContinously adjustable light focus from 12 - 40 degreesDouble light outputNo stray lightUniform rotationCompatible with studio lights with Bowens connectorLens diameter: 150 mmTotal diameter: 185 mmSCOPE OF DELIVERY1x Bresser Fresnel lens 2x light amplification