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The telescope is extremely good, not only because it is very bright (F /4), but also because of significant upgrades on it.Inside the tube, 10 laser cutted diaphragmsare painted with the best possible anti-reflective paint that can be foundon the market.In addition, the secondary mirror holder (which is 3 inches) and thefocal tube are darkened.The primary mirror is precision-cooled with a 200mm low-speed fan and 2filters. Virtually non-filtered air can not enter thepipe, which is a great advantage in the summer when there are insects. The fanis adjustable.The focus is 2 inches and is further processed with atireflexpaint and is poweredby JMI.I also add an original metal sunshade and 2 sets of rings (254mm)together with two dovetailsThe finder is the factory oneEverything is with its original packaging with the Styrofoam damperscover and cushionThe contrast of the telescope is remarkable. For my inexperiencedamateur eye, “coma” and “vignetting”are missing or inconspicuous with a good focus. Optical Design:——————————————Schmidt-NewtonianClear aperture: ——————————————10” (254mm)Focal length: ——————————————–1016 mmFocal ratio (photographic speed):——————-f/4Resolving power:—————————————0.45arc secondsCoatings: ————————————————Meade Ultra-HighTransmission Coatings (as option)Limiting Visual Magnitude: 14.5Limiting Photographic Magnitude: 17.0Maximum Practical Visual Power: 500xSecondary Mirror Obstruction (dia.; %): 3.19; 10.2%Net telescope weight: ———————————-30 lbs.Primary, Secondary Mirrors: Grade-A quality, fine-annealed Pyrex glassCorrecting Plate/Lens: clear float glassFinder Scope: 6 x 30mm Achromatic viewfinderFocuser: Metal rack-and-pinion focuser with JMI MOTOFOCUSThere is no tripod and/or motor/mount.Due to the delicacy of the telescope, I DO NOT ACCEPT RETURNS!! Can be collected in London or shipped in UK/EU
Category: Cameras and Photography:Telescopes and Binoculars:Telescopes
Location: Romford, London
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