William Optics ZenithStar 66mm Doublet SD APO Refractor White Tube w/ 2 Speed Focuser ZS66-SD-W w/ FREE UPSWilliam Optics ZenithStar 66mm Doublet SD APO Refractor White Tube w/ 2 Speed Focuser ZS66-SD-W on sale and available from our online store. OpticsPlanet, Inc  is an Authorized US Distributor for William Optics Telescopes.
Doublet SD APO (ZenithStar 66). F/5.9, 388mm comes with L-Based bracket, and Custom Aluminum Case (OTA Only). (W/2 speed microfocuser)
Specifications of William Optics ZenithStar 66mm Doublet SD APO Refractor White Tube w/ 2 Speed Focuser ZS66-SD-W:
| Aperture | 66mm | | Focal Ratio | F/5.9 | | Focal Length | 388mm | | Objective Type | SD Doublet, Air Spaced,
Fully Multi-Coated, STM Coatings | | Resolving Power | 1.78" | | Limiting Magnitude | 10.8 | | Lens Shade | Retractable | | Focuser | 1.6" (40.6mm) Crayford Focuser
Adjuster, 1:10 Fine Focus
63mm (2.5") Focuser Travel Length
Rotatable Focuser Design | | 1.25" Adapter | Brass Compression Rings | | L- type Mount | L Bracket Based | | Field Stops | 10 Baffles | | Tube Diameter | 2.95" (75mm) | | Tube Length | 11.8" (300mm) Fully Retracted
14.2" (360mm) Fully Extended | | Tube Weight | 3.5lbs. (1.61kg) | | Case | Aluminium Case (Standard) | Case Dimensions
(WxHxD) | 15" x 9.6" x 6.5"
(38.5cm x 24.5cm x 16.5cm) | | Case Weight | 3.5lbs. (1.6kg) | | |
Features of William Optics ZenithStar 66mm Doublet SD APO Refractor White Tube w/ 2 Speed Focuser ZS66-SD-W:
A small-aperture but extremely-portable APO scope at a GREAT price? ZS 66 SD Doublet APO is here to fit all your needs! At a BARGAIN PRICE !!!
Sharp to the edge and color free, no other scope will beat it's price/quality ratio! Excellent mechanics and fit and finish, Crayford 2-speed fine focuser, super-high transmission multi-coating, aluminum case. Fast focal ratio makes it your ideal fast set-up for travel astrophotography or piggybacking. Lens Design
• SD glass (Japanese Ohara glass) doublet air-spaced, in CNC machined ultra-high precision lens cell.
• Each lens is Fully Multi-Coated with a special super-high transmission coating (STM Coating) on all surfaces. Low C.A.
• Fully baffled to block all extraneous off-axis light rays and prevent glancing reflections, increasing overall contrast.
• 66 mm clear aperture.
• Glossy metallic paint in blue and white: differently from anodizing does not easily gets fingerprints. Nothing Left to Chance
• Perfect for EAZY-T Alt-Az Mount. You can slide it directly into the mount without a plate if you like.
• Fully CNC machined production, no plastic part used.
• Drawtube travel length 63 mm with graduated scale. Super Portable
• Retractable dewshield, smallest size ever and enhanced portability!
• SCT thread adapter to 1.25” eyepieces with anti-marring brass compression ring.
• Can mount a WO 2” SCT star diagonal for 2” accessories usage. Astrophotography super-apo
• Fast focal ratio for bright, high-quality astro-imaging.
• Dedicated field reducer/flattener available.
• 2" adapter available for astrophotography.
• Perfect for piggybacking as guide scope. Consider William-Optics new guiding rings!
Wonderful WO Microfocuser
• William Optics rotatable Crayford focuser, smooth and precise, ideal during astrophotography.
• Adjustable focuser tension.
• Super-smooth and reliable 1:10 micro focuser for fine focusing during imaging and visual observations alike. Attention to Packaging
• Exclusive aluminum case or soft carrying bag included in the price.
• Water resistant.
• Carry-on size: you do not have to leave your treasure home!
• Two-year, no fuss warranty and constant customer service! Package Contents:- ZenithStar 66mm Doublet SD APO Refractor White Tube w/ 2 Speed Focuser
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