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William Optics Zenithstar 103 Imaging APO Refractor with Saddle Handle Bar - Gold - A-Z103IIGD

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William Optics Zenithstar 103 Imaging APO with Bahtinov Mask Cover

This ZenithStar refractor comes with the WO saddle handle bar! William Optics' patented handle design allows users to slide their compatible slide-base guide rings (not included) directly onto the handle, and it will also accept the William Optics UniGuide 50mm Slide-Base Guide Scope (not inlcuded). This handle is anodized to match the scope and includes two screws for installation.

The fully updated ZenithStar 103 has been designed by William Optics to give you unparalleled clarity without sacrificing color correction. You will be impressed by this scope's ability to dramatically reduce chromatic aberration. A true-color producing APO refractor with a fast, f/6.9, focal ratio all in a visually stunning OTA, there's nothing like it out there.

William Optics' Z103 has a doublet air-spaced apochromatic design housed in a CNC-machined lens cell. The exterior is powder white in color with gold accents. Although it has an impressive 103mm aperture, the Z103 is compact enough to be transported as carry-on luggage on many airlines. This makes the Z103 perfect for astronomers who travel to even the most desolate locations; searching for the perfect observation session just got one step easier.

The William Optics Z103 includes a robust 2.5" dual speed, rack and pinion focuser. The 1:10 dual speed design is easy to use and features smooth moving knobs. The scope also includes mounting rings, guiding rings, long vixen-style dovetail plate, and the innovative patented Bahtinov Mask Cover.

William Optics Zenithstar 103 Imaging APO Specifications

  • Telescope Optical Design: Refractor

  • Refractor Design: Apochromat (APO)

  • Number of Refractor Elements: 2

  • Telescope Aperture: 103 mm (4.06")

  • Telescope Focal Ratio: f/6.9

  • Telescope Focal Length: 710.7mm

  • Limiting Stellar Magnitude: 13.8

  • Highest Useful Magnification: 206x

  • Light-Gathering Power Compared to Human Eye: 217x

  • Focuser Style: Rack & Pinion

  • Focuser Size: 2.5"

  • Focuser Speed: Dual Speed

  • Telescope Mount Type: No Mount - OTA Only

  • Telescope OTA Length: 24.2" (615mm)

  • Telescope OTA Weight: 9.61 lbs

  • Telescope Warranty Period: Two Years