William Optics ZenithStar 73 Doublet
APO Telescope - Red
- 73 mm Aperture f/5.9 Imaging Refractor Telescope
- Doublet w/ FPL-53 glass for Apochromatic performance
- Covers full frame imaging circle (44 mm)
- Two-speed 2.5" Rack & Pinion Focuser
- Color: Red
- Includes Mounting rings and Vixen style dovetail
- Weight: 2.5 kg (5.5 lb)
- Includes Interchangable Camera Mount
- Includes Dust Cover with built-in Bahtinov Mask
- Adjustable Dew Shield
The William Optics ZenithStar 73 APO Telescope is a high quality Apochromatic Imaging and visual use telescope with an aperture of 73 mm and a focal length of 430 mm or an f-ratio of f/5.9. This ZenithStar 73 APO Telescope can also be used with an interchangable camera mounting system, with various T-mounts for cameras (not included).
This ZenithStar 73 APO Telescope from William Optics is provided in Red color accents with a white tube. Some photos may show telescope with gold accents; these are for illustration only.
If you wish to take great astro-images with a high quality APO refractor, this William Optics ZenithStar 73 APO Telescope is a great way to achieve your imaging goals. Its FPL-53 glass air-spaced doublet lens design provides images with extreme sharpness, clear details, with APO grade color correction.
Includes a Mounting Base (Vixen type), 2.5" Dual-speed Rack and Pinion Focuser, two clamshell type Mounting Rings for the telescope, and the new innovative Bahtinov Mask cover. Also, this gem of a telescope is relatively small and easy to store or transport.
Introducing a first innovative feature in the industry: Now this ZenithStar 73 APO Telescope from William Optics comes standard with a dust cover that has a built-in, clear Bahtinov Mask for perfect focusing every time. Simply remove the flat front cover plate, leaving the dust cover cuff in place on the telescope. Point the telescope at a bright star, and focus carefully. When the bright central diffraction spike looks exactly centered between the other two spikes forming an "X", then your telescope is in exact focus for stars. Remove the dust cover cuff carefully from the objective end of the telescope, and you are ready to image.
|Telescope Type:||Doublet Apochromatic Refractor|
|Objective Aperture:||73 mm|
|Focal Length:||430 mm|
|Focuser:||2.5" Dual-Speed R & P Focuser|
|Camera Format:||Full Frame/APS-C Image Compatible|
|Tube Length:||310 mm (Fully Retracted)|
|Tube Weight:||2.5 kg (5.5 lb) W/ Rings & Dovetail|
|Compatible With:||1:1 Full Frame Flattener (NOT Included)|
|T-Mount:||Interchangable T-Mount Style for Compatibility|
|T-Rings:||None, T-Rings are available as optional accessories|
|Finder and Finder Rings:||None, These are available as optional accessories|