Astroprices

ZenithStar 61ii

William Optics

From $598.00

5 stores

In stock

The William Optics ZenithStar 61ii is a premium portable apochromatic refractor combining exceptional optical performance with extreme portability. Featuring Ohara FPL-53 synthetic fluorite glass with fully multi-coated optics, it delivers sharp, high-contrast images with minimal chromatic aberration across visual and astrophotography applications. The f/5.9 focal ratio and 41mm image circle make it ideal for wide-field deep-sky imaging with DSLR and astronomy cameras, while its compact 2.15kg form factor and retractable dew shield enable convenient travel and backyard observing sessions.

Specifications

Highest magnification 122
Coating SMC multi-coating
Optics type Refractor
Focal length 360 mm
Aperture 61 mm
Focal ratio f/5.9
Optical design Air-Spaced Doublet Apochromat
Image Circle 41 mm
Focuser Travel 75 mm
Weight 2.15 lb
Focuser Speed 10:1 Dual Speed
Glass Type FPL-53 Synthetic Fluorite
Focuser Type 2 inch Rack & Pinion
Tube Length (Fully Retracted) 250 mm

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