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WILLIAM OPTICS GUIDESTAR 61 APO
Master Precision Imaging with the William Optics GuideStar 61
Elevate your astrophotography with the William Optics GuideStar 61, designed exclusively for high-quality imaging and precision guiding. Featuring the acclaimed FPL53 ED doublet lens, identical to that in the Zenithstar 61, this telescope ensures sharp, high-contrast images with virtually no false color, making every capture exceptionally clear.
The GuideStar 61 boasts a lightweight optical tube for enhanced portability, coupled with a practical draw-tube (push-pull) focuser and rotating lens assembly for meticulous focusing. Ideal for serious astrophotographers, it supports a variety of setups with options like the Adjustable Flattener for ZS61 and a new 0.8x Reducer/Flattener, optimizing it for detailed wide-field imaging.
Constructed with precision from CNC machined aluminum, the GuideStar 61 offers a robust yet elegant design. It comes equipped with a Vixen/Synta-style finder dovetail rail for easy attachment of finder scopes, and a soft carry case for protection on the go.
Whether used as a guide scope or a portable imaging telescope, the GuideStar 61 is a crucial tool for any astrophotographer looking to enhance their night sky observations.
TECHNICAL SPECIFICATION
+
SPECIFICATIONS
DETAILS
Lens Type
Doublet
Lens Material
FPL-53
Focal Length
360 mm
Diameter
61 mm
Focal Ratio
f/5.9
Image Circle
42 mm
Optional Flattener
FLAT 61A 1.0x, FLAT 61R 0.8x
Adapter Included
M54 → 2" Visual Back
Tube Length
340 mm
OTA Weight
Not Available
Total Weight
1.44 kg (3.17 lbs)
APERTURE
Below 70mm Aperture
APERTURE(MM)
61
BRAND
William Optics
COUNTRY OF ORIGIN
Taiwan
FOCAL LENGTH
Below 500mm Focal Length
FOCAL LENGTH(MM)
360
FOCAL RATIO FN
5.9
IN THE BOX
GuideStar 61 OTA | Vixen/Synta-style Finder Dovetail Rail | Lens Cap | Soft Carry Case