RC Optical Systems - Fixed Instruments Adapter

Fixed Instruments Adapter...

Remove your Rear Cell focuser and install a "Fixed Instruments Adapter" to:

Eliminate focuser drift and flexure.
Added "Bolt-on" security for your expensive camera and accessories.
Save weight.

Shown here on an RCOS 10RCA Carbon Truss Ritchey-Chrétien Astrograph.

RC Optical Systems "Fixed Instruments Adapter Set" (FIA) is standard equipment on all new 10" - 20" RCOS Telescopes. RCOS manufacturers spacers intended to be compatible with the Astro Physics 2.74 x 24 thread. Each spacer has internal knife edge light stops to reduce or eliminate stray light.

All 2006 and newer model RCOS telescopes include the following sizes:

0.750 inches.
1.00 inches.
1.25 inches
1.75 inches
2.50 inches.
Astro Physics 2" barrel with brass locking ring and three thumbscrews.

New sizes available for purchase as of January 2007:

0.1875 washers.
0.625 inches.
0.875 inches.
2.875 inches.

Additional spacers and new size may be purchased for $50 each.

Contact Us | Policies and Warranties | Site Map | Customer Area

RC Optical Systems, Inc. An Arizona Corporation
1650 South Plaza Way, Suite 101, Flagstaff, AZ 86001, 928-526-5380
Monday through Thursday, 7am - 5pm, Friday 7am - 12 noon