William Optics Guidescope Guide Star Apo 61

The William Optics GuideStar 61 offers versatile functionality as either a portable high-quality imaging scope or an ultra-high-quality guidescope.

Featuring the same exceptional FPL53 ED doublet lens as the Zenithstar 61, the GuideStar 61 APO ensures sharp, high-contrast images with minimal false color aberration.

Its lightweight optical tube incorporates a draw-tube (push-pull) focuser for coarse focusing, complemented by a rotating lens assembly for precise fine focus adjustments.

Equipped with two flatteners: the Adjustable Flattener for ZS61 and a new 0.8x Reducer/Flattener, enhancing imaging capabilities.

Crafted from CNC machined aluminum, ensuring superior fit and finish, the GuideStar 61 comes with a Vixen/Synta style finder dovetail rail for easy mounting and a soft carry case for portability.

SPECIFICATIONS:

Capacity

Lens Diameter (mm): 61

Focal Length (mm): 360

Aperture Ratio (f/): 5.9

Coating of Optical System: Multiple

Connector (at Camera End): M54

Connection (to Eyepiece): 2"

Special Features

Fine Adjustment: Yes

Ring Clamp: Yes

Equipment

Prism Rail: Yes

Carry Case: Yes

General

Type: Guiding

Type of Build: Guidescope

Outer Material: Aluminum

Weight (g): 1440

Length (mm): 340

Color: Blue