Most orders placed by 2PM EST will be shipped the same day ‎ ‎ | ‎ ‎ Click for Hours, Location & Customer Service

William Optics Accessory Red William Optics RotoLock Visual Back Adapter for FLT focuser 3.5"-2" Upgraded - F-ROTO-A3.5-2

William Optics Accessory Blue William Optics RotoLock Visual Back Adapter for FLT focuser 3.5"-2" Upgraded - F-ROTO-A3.5-2

William Optics Accessory Gold William Optics RotoLock Visual Back Adapter for FLT focuser 3.5"-2" Upgraded - F-ROTO-A3.5-2

Roll over image to zoom in, click for full size Click on image to zoom

William Optics RotoLock Visual Back Adapter for FLT focuser 3.5"-2" Upgraded - F-ROTO-A3.5-2

William OpticsSKU: F-ROTO-A3.5-2RD

William Optics provides a 2 year manufacturer warranty on new items

Color: Red

Variant

Price:

$315 CAD

We Price-Match

Stock:

Back Order Please Contact Us for a delivery estimate.

FREE Shipping Across Canada on orders $500 and over Some exceptions apply for oversize items

Quantity:

Frequently Bought Together

Loading...

Have a question? Chat with us!

Share this product

William Optic's 3.5" RotoLock Visual Back Adapter. Compression rings are no longer needed, giving you ultra smooth focusing for perfect centering lock.
The RotoLock fits on the FLT 3.5" Focuser.

Note: A 1.25" adapter is not included

Lifetime Technical Support

Every purchase includes ongoing help with product configuration, assembly and setup, and troubleshooting (hardware/software). While manufacturer warranties still govern repairs, replacements and parts, we’ll guide you through diagnostics and assist with warranty claims.

Priority Customer Service

Whether you're just starting out or diving deeper into astronomy, our friendly Product Support Specialists are ready to guide you every step of the way.
✨ Need a hand? Contact Us - we’d love to hear from you!

Proudly Canadian

We’re 100% owned and operated right here in Ontario -and we love supporting fellow Canadian manufacturers. Explore our collection of homegrown products and trusted Canadian brands!

Promotes Sustainability

We are committed to fostering a sustainable future by promoting environmentally responsible practices within our business and astronomy. We use recyclable shipping materials and re-use non-recyclable materials wherever possible.

William Optics RotoLock Visual Back Adapter for FLT focuser 3.5"-2" Upgraded - F-ROTO-A3.5-2

Frequently Bought Together

Description

Additional Resources