Cloud Break Optics

M90 x 1mm Thread to OPTEC-2400 Telescope Mount (19663)

M90 x 1mm Thread to OPTEC-2400 Telescope Mount (19663) - Main image
M90 x 1mm Thread to OPTEC-2400 Telescope Mount (19663) - View 2M90 x 1mm Thread to OPTEC-2400 Telescope Mount (19663) - View 3M90 x 1mm Thread to OPTEC-2400 Telescope Mount (19663) - View 4
$56.25 $75 In stock

Category: Astrophotography Accessories

Description

The M90 x 1mm Threaded Mount was designed primarily for adapting the TCF-S focuser to the  AstroTech AT6RC-class telescopes.   This adapter fits over the M90 threads and presents the OPTEC-2400 dovetail for attachment of the TCF-S, IFW, or any 2400 receiver.

The #19663 mount can be used with any telescope having an M90mm x 1mm thread pitch male thread.

Specifications

  • Outside Diameter: 3.95" (100mm)
  • Overall Height: 0.81" (20.6mm)
  • Clear Aperture: 2.05" (52.1mm)
  • Weight: 3.6 oz (100 g)
  • Back-focus Usage: 0.5" (12.8mm) measured from thread seat

Compatible with:

  • Astro-Tech AT6RC and AT8RC,
  • Orion 8" f/8.0 RC Astrograph,
  • Any telescope with an M90x1mm male thread.
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Victoria T. ★★★★★

The threads are machined cleanly and fit snugly on my focuser without any wobble. It’s exactly what I needed to attach the TCF-S to the telescope, and it feels solid once tightened.

Sophia ★★★★★

Finally got this to mate perfectly with my AT6RC and the TCF-S focuser — the threads engage smoothly with zero wobble. Exactly the adapter I needed for that setup.

Riley ★★★★★

The machining on this M90 adapter is precise enough that my focuser threads on smoothly without any binding. It solved the fitment issue I was having with my AT6RC-class telescope perfectly.

Related Products