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Hi guys,
I am reluctantly selling my 100ED scope along with some extras. It’s a brilliant all in one scope which is capable of producing great images and views of the moon, planets & deep space, thanks to its Ohara FPL-53 objective lense. I purchased everything from FLO, the telescope is just over a year old, the focuser is 6 months old and has been used twice at most. I upgraded the focuser to a heavy duty one to avoid focuser slippage, which seems to be quite common with the stock focuser.
Here’s the fine detail copied from FLO’s website
As you can see from the pics it does have two cosmetic scratches, however the FPL-53 glass is in perfect condition.
Sky-Watcher’s highly regarded EVOSTAR DS-PRO Series ED refractors feature Ohara FPL-53 extra-low dispersion glass for the ED element, which significantly reduces chromatic aberration, and top quality German Schott glass for the matching Crown element.
Features
Objective Lens Diameter: 100mm
Telescope Focal Length: 900mm (f/9)
Optically-matched 0.85x Focal Reducer (f/7.65)
Eyepiece Supplied (2″): 28mm LET
2/50.8mm Di-Electric Star Diagonal
9×50 Finderscope
Dual-Speed 11:1 2 Crayford Focuser (Backlash-Free)
Fully Multi-Coated Objective
Supplied with Tube Rings & Mounting Plate
Aluminium Carrying Case
Baader Diamond Steel Track Focuser
Features Baader’s unique ‘Diamond form’ micro-geared drive system for zero backlash, zero cogging and zero flexure. Which is quite an achievement!
Diamond Form Drive System
True diamonds form a micro-geared high precision drive system never accomplished before
In comparison to conventional crayford or rack & pinion drives, this micro-geared movement has zero backlash, zero cogging, and zero flexure
Diamond Steeltrack 2″ focusers lift a payload of 6kg (13 lbs) straight up, without slipping, without excessive bearing preload (bearing preload can be increased further if necessary)
Bearing system utilises unbreakable Instrument Grade Roller-Bearings instead of simpler Ball Bearings handles higher loads with greater rigidity and accuracy. No Teflon-pads anywhere
1:10 Stainless Steel fine-focus mechanism, ready for attachment of the optional Steeldrive temperature compensating motor drive system
Detachable drive block assembly is reversible for right hand or left hand fie-focus operation and for attaching the Steeldrive motorblock onto Diamond-NT-Steeltracks for newtonian telescopes
Shortest possible mechanical design achieves optimum balance between focuser height (backfocus) and rigidity requirements
Zero shift locking knob to precisely stop any movement without affecting optical axis adjustment
Focusing Drawtube
Each bearing individually adjustable for precise alignment of mechanical vs. optical axis
Ultra-hard subzero coated bearing races precision milled and much harder than anodising or stainless steel
Oversized 55mm inner clear diameter, to prevent vignetting, with anti-reflection knife-edge baffles
Clamping System
S58 Dovetail ring-clamp built into focusing tube for accepting optional T-2 / M48 / M68 and other S58 direct thread adapters to enable direct thread connection of accessories and cameras without 2″ clamp
2″ eyepiece clamp with hardened bronze clamp ring (length of clamp: 12.5mm / “) included as standard
Optionally available 2″ Baader Clicklock-clamp w. integrated S58 dovetail (added length: 16mm / 5/8″)
Two auxiliary threads (M60x1 and M55x0,75) cut into the RT & NT focusing-tube for attachment of dedicated field flatteners or focal reducers/corrector.
I can email more pictures if required, also not shown in the pics is a Sky Watcher diagnol and a 25mm eye piece.
P&P included in price.
Thanks for looking.
Ryan
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Category: Cameras and Photography:Telescopes and Binoculars:Telescopes
Location: Caerphilly