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CAT Series

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ALL William Optics CAT Series Telescopes SHIP FREE in the Continental US!

Be sure to enter Discount Code "FREESHIP" at Checkout.

$William Optics William Optics RedCat 91 WIFD Refractor Telescope$

A high-performance astrophotography tool with a 5-element Advanced Petzval lens design that offers superior imaging capabilities.

William Optics RedCat 91 WIFD Refractor Telescope

$2,598.00

$William Optics William Optics Gran Turismo 81 APO Refractor Kit w Internal Focus Design and 32mm UniGuide - Red$

The William Optics Gran Turismo 81 is an apochromatic triplet refractor with a unique focuser design.

William Optics Gran Turismo 81 APO Refractor Kit w Internal Focus Design and 32mm UniGuide - Red

$2,241.00

William Optics Willam Optics GT81 with Internal Focus Design (WIFD) Apochromatic Series (SPECIFY COLOR)

Introducing the WILLIAM OPTICS Internal Focus Design (WIFD) Apochromatic Series.

Willam Optics GT81 with Internal Focus Design (WIFD) Apochromatic Series (SPECIFY COLOR)

$1,998.00

William Optics William Optics Red Cat71 WIFD

This William Optics WIFD 71 mm APO Astrograph is a premier tool for astrophotographers.

William Optics Red Cat71 WIFD

$1,798.00

$William Optics RedCat 61 WIFD APO Refractor$

One of the greatest features of the RedCat 61 is the high-quality optics that make the telescope ideal for astrophotography

William Optics RedCat 61 WIFD APO Refractor

$1,498.00

$William Optics William Optics MiniCat 51 WIFD Refractor Telescope$

A precision-engineered telescope designed for astrophotography enthusiasts

William Optics MiniCat 51 WIFD Refractor Telescope

$898.00

$WIlliam Optics RedCat 51 WIFD Gen 3 f/4.9 APO Refractor Telescope$

WIlliam Optics RedCat 51 WIFD Gen 3 f/4.9 APO Refractor Telescope

WIlliam Optics RedCat 51 WIFD Gen 3 f/4.9 APO Refractor Telescope

$898.00

William Optics William Optics Image Plane Tilt Adjuster (for RedCat 51 Upgrade)

This tilt adjuster is mainly designed for some cameras that have a tilted sensor which needs to be adjusted.

William Optics Image Plane Tilt Adjuster (for RedCat 51 Upgrade)

$50.00