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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

William Optics Visual Adapters

William Optics visual adapters connect diagonals and eyepieces to refractors and SCTs. Most are RotoLock visual backs, which use a rotating clamp ring to center and hold the accessory: 1.25" and 2" SCT versions, a 2" SCT 3.28" adapter, a 2" M63 version, a 2"-1.25" reducer and a 3.5"-2" adapter.

The collection also includes an M48 push-in nosepiece for William Optics 2" diagonals and the UniGuide scope, and a gold SCT connection for William Optics diagonals.

Filters

$58.00 - $58.00
$58.00
$58.00 - $58.00
$58.00

William Optics 2"-1.25" RotoLock Visual Back Adapter

Options available

Converts 2" focusers to a 1.25" holder Innovative RotoLock self-centering mechanism Dual input: 2" push-in barrel and female M48 threads Adds 38 m...

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$58.00 - $58.00
$58.00
$58.00 - $58.00
$58.00
$98.00 - $98.00
$98.00
$98.00 - $98.00
$98.00

William Optics 1.25" RotoLock Visual Back Adapter - SCT

WO-F-ROTO-A2-125-SCT-TA

Securely holds 1.25" eyepieces and accessories RotoLock system provides self-centering, even grip Attaches to standard SCT rear threads (M50.8 fem...

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$98.00 - $98.00
$98.00
$98.00 - $98.00
$98.00
$99.00 - $99.00
$99.00
$99.00 - $99.00
$99.00

William Optics 2" RotoLock Adapter - SCT

WO-D-ROTO-A2-SCT2F

Designed for Schmidt-Cassegrain Telescopes (SCT) Features a secure RotoLock mechanism for 2" accessories Description The Willi...

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$99.00 - $99.00
$99.00
$99.00 - $99.00
$99.00
$39.00 - $39.00
$39.00
$39.00 - $39.00
$39.00

William Optics M48 Push-in Nosepiece for WO 2" Diagonals & UniGuide Scope

WO-WD-DIG2A
1 in stock

Connects M48 Threaded Accessories to 2" Push-in Focusers Female M48 Threads for 2" Filter Attachment Adds a Fixed 36 mm of Optical Length Male M48...

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$39.00 - $39.00
$39.00
$39.00 - $39.00
$39.00
$88.00 - $88.00
$88.00
$88.00 - $88.00
$88.00

William Optics 2" RotoLock - M63

WO-F-ROTO-A63SL

2" RotoLock adapter designed for M63 threads Ensures a secure and precise connection for 2" accessories ...

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$88.00 - $88.00
$88.00
$88.00 - $88.00
$88.00
$228.00 - $228.00
$228.00
$228.00 - $228.00
$228.00

William Optics 3.5"-2" RotoLock Visual Back Adapter

Options available

Adapts 3.5" William Optics focusers to a 2" receiver Features the secure, self-centering RotoLock mechanism Connects via M92 x 1 male threads Adds...

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$228.00 - $228.00
$228.00
$228.00 - $228.00
$228.00
$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00

William Optics SCT Connection for WO Diagonals - Gold

WO-D-SCT-TA

Connects M50.8 Male to M48 Female Threads Adds 13.8 mm of Optical Length Female Thread: M50.8 Male Thread: M48 Signature William Optics Gold Anodi...

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$43.00 - $43.00
$43.00
$43.00 - $43.00
$43.00