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Home Telescopes Optical Tube Assemblies Bresser Optical Tubes Bresser Messier AR-102xs ED Hex-Focus Optical Tube Assembly
A remarkable little telescope with ED glass for improved colour correction and contrast and a full 102mm (4") of unobstructed light collecting area in probably the most compact package we have seen for a 4". Build quality is excellent with the Hexagonal focuser providing precise control. The perfect quality grab and go refractor for low power wide angle views. Delivery is normally 5-7 business days with this product.Supplied with a standard 44mm dovetail, finder, diagonal, 26mm eyepiece and T adapter. Includes full aperture Solar FilterWhat's in the Box:Optical tubeEyepiece: 26 mm Super Plossl 31.7mm (1.25")2" eyepiece adapter6x30 viewfinder31.7mm (1.25") diagonal mirrorPC Software StellariumManualMoon map Objective Solar- filter
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. Delivery is normally 2-3 business days with this product.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.Specifications:102mm aperture f/4.5 doublet460mm focal lengthED (extra low dispersion) glass lensExcellent focuser with 2.5" (65mm) open diameter6x30 straight through viewfinderoptimized finder bracket for comfortable use31.7mm (1.25") diagonal mirrorUniversal 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:Optical tubeEyepiece: 26 mm Super Plossl 31.7mm (1.25")2" eyepiece adapter6x30 viewfinder31.7mm (1.25") diagonal mirrorPC Software StellariumManualMoon map
Great for wide field and DSOs I find this scope really shows faint fuzzies well, background light pollution permitting. I often use it at public demonstrations; the low magnification and compactness make it easy to aim and easy to transport. My only caveat is the wobbly finder scope. Just throw it away and get a red dot finder. (24/09/2020) Keith Moseley - Monmouth
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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