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

Compatibility

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

• 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
• Drawing