This short focal ratio (f/4.5) refracting telescope from Bresser is an ideal instrument for those who want a quick "grab and go" instrument for wide field deep sky observation. This diminutive scope really packs a deceptively large punch for deep sky observation, as its unobstructed aperture gives superb contrast. While the telescope's design features ED glass, it is not quite in the Apochromatic range of colour correction, but still gives a good account of itself for higher power observations of the Moon and brighter planets. But for wide field sweeping of the Milky Way and viewing objects like M31, the Bresser Messier AR-102xs/460 is a great choice. The supplied 26mm eyepiece provides 18x magnification and nearly a 3 degree true field for superb wide field views that can reveal objects like M31 and M45 magnificently.
The telescope comes complete with Bresser's innovative "no image shift" Hexfocus 2" low profile rack and pinion focuser, which can support a much larger payload than an equivalent Crayford style focuser. Its 2.5" clear aperture drawtube will prevent vignetting in even full frame DSLR cameras. This single speed option can be upgraded to a dual speed control knob, for finer focusing.
The telescope also comes with a 2" to 1.25" step down ring, a 1.25" diagonal and 1.25" Bresser 25mm Plossl design eyepiece. The telescope is also supplied with a lightweight 6x30mm straight through finderscope.
The Bresser AR-102xs can be mounted on most commercially available mounts as it is supplied with a standard Vixen/Synta style mounting foot, ideal for the Explore Twighlight or SkyWatcher AZ4 for ultimate portability or at home on the EQ3 / EQ5 class for imaging. Add a 45 degree erecting prism for fully corrected daytime views with this quality versatile refractor, a standard tripod thread on the dovetail allows direct connection to photographic tripods.
This telescope is only an optical tube assembly, supplied without mount and tripod.
102mm aperture f/4.5 doublet
460mm focal length
ED (extra low dispersion) glass lens
Excellent focuser with 2.5" (65mm) open diameter
6x30 straight through viewfinder
optimized finder bracket for comfortable use
31.7mm (1.25") diagonal mirror
Universal 44mm Dovetail plate with stainless steel rail (with photo tripod thread)
50.8mm (2") to 31.7mm (1.25") adapter with integrated T2 thread (optional T2-adapter ring for your camera is needed)
What's in the Box:
Eyepiece: 26 mm Super Plossl 31.7mm (1.25")
2" eyepiece adapter
31.7mm (1.25") diagonal mirror
PC Software Stellarium
Solid OTA with addictive wide-field views. Attractive objective, solid rotatable focuser. Plastic eyepiece,diagonal,finder all way too flimsy. Quality eyepieces bring stunning, immersive views of bright targets like M31 & star clusters/asterisms & fainter galaxies / nebulae under dark skies. Fixed dew shield too short, ultra portable & light (26/10/2017) Tim Versteegen - London
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