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Bresser provides beginner and advanced astronomers a complete observation kit, with Go-To capabilities, with this version of their Messier 5" f/5 Achro Refractor Telescope. It comes with the achromatic refractor optical tube, the motorized and computer controlled Exos-2 Go To mount with a 100,000+ database guidance system, dual-axis motors, a sturdy tripod, an illuminated pole finder scope, and an array of optical accessories. This Messier optical tube assembly (OTA) can be used for imaging or viewing near and deep-sky objects such as the Moon and planets, galaxies and nebulae, and anything in between. It features an achromatic lens system to virtually eliminate chromatic and spherical aberrations in order to create an immersive, distortion-free viewing experience with true color rendition across the entire field of view - especially at the edges. The combination of aperture, aberration-free optics and a fast f/5 focal ratio make this telescope ideally suited for astrophotography and astroimaging.
This iteration of the Messier is equipped with the Exos-2 Go To motorized equatorial mount and helps to take the guess-work out of astronomy and gets you observing faster by combining an EQ mount with a 100,000+ database computer guidance system and dual-axis motors. To make set-up and alignment faster and easier, Bresser includes an illuminated polar finder scope for use in the Northern Hemisphere. The included tripod is built with large 2" diameter stainless steel legs and tight tolerances to reduce vibration for clearer viewing. A center stabilizer bar pulls the accessory tray up to lock the legs in place adding further rigidity and vibration reduction. It is adjustable from 29 to 49" to accommodate a wide range of users. The mounting cradle-ring assembly clamps over the optical tube and lets the user adjust the orientation and position of the scope relative to the mount to optimize viewing comfort and balancing, while avoiding interference with other equipment, and a 1/4"-20 stud on the top of the cradle ring assembly enables a camera to be piggybacked onto the scope for wide-field photography.
The SkyTracker kit includes the hand controller unit, and right ascension and declination motors. Its hand controller has more than 100,000 objects with the ability for users to input custom coordinates and favorites. With a slew speed of 2°/second and nine tracking speeds the SkyTracker can accurately keep near and deep sky objects such as the Moon, planets, galaxies and nebulae centered in your eyepiece for long exposure imaging and astrophotography or prolonged observation sessions.
The scope is equipped with a 2" rack-and-pinion focuser for over-sized eyepieces and accessories, and comes with a 1.25" reducer adapter and a 1.25" 26mm super Plossl eyepiece that yields 23x power on the OTA. The adapter also has integrated T2 mounting threads to enable the use of a user-supplied DSLR-specific T2 ring for astrophotography through the scope.
Aperture: 5" (127mm)
Focal ratio: f/5
Focal length: 635mm
Refractor-style optical design
Anti-reflection multicoated optics
Achromatic lenses eliminate chromatic and spherical aberrations for true color rendition and without distortion across the entire field of view, especially at the edges
8x50 non-illuminated straight-view finderscope
StarTracker Go-To System
Dual-axis DC servo motors with digital encoders
Database includes over 100,000 astronomical objects
Add user-defined objects and favorites
Controls dual axis motors for precision tracking
ST-4 autoguiding port
Slewing speed: 2° per second
Nine tracking rates for near and deep-sky objects
2.5x1.4" (6.3x3.6cm) LCD screen, eight-rows with 21 digits per row
Cast aluminum with white powder-coat
Ball bearings on both axes reduce vibrations and minimize backlash
Integrated bubble level on mount base
9.9lb (4.5kg) counterweight with 20mm diameter bar
Latitude, Right Ascension, and Declination scales
Right ascension axis release lever allows for fast adjustment
Illuminated polar finder scope to increase alignment precision
2" rack-and pinion focuser
26mm super Plossl eyepiece, yields 24x power
2"-to-1.25" eyepiece adapter with integrated T2 threads
90° star diagonal
29lb payload capacity
2.0" stainless steel legs
29 to 49" height range
Center stabilizer bar locks legs in place to reduce vibrations
Accessory tray with holes for 1.25" eyepieces
Spiked feet for use in ground and grass for increased stability, especially on rough or uneven areas
In the Box
BRESSER AR-127S Messier 5" f/5 Achro Refractor Telescope with Exos-2 GoTo Motorized Mount and Tripod