RC Optical Systems - 20 inch Military Ritchey-Chrétien

RCOS 20 inch "Ruggedized" Military Ritchey-Chrétien...

Twin 20 inch Ritchey-Chretiens show on a mobile tracking platform.

Twin 20 inch RCOS "Ruggedized" Military Ritchey-Chrétiens on a Photo-Sonics Cine-Sextant mobile tracking mount at Vandenberg AFB.

Boeing 747 at 36,000 feet

March 16, 2006 - High Speed Video of a Boeing 747-200 at approximately 36,000 feet using an RC Optical Systems Military 20RC with a Photo-Sonics DCR655 CMOS Camera imaging at 250 frames per second. This aircraft was acquired and tracked manually using a Photo-Sonics Cine-Sextant Mobile Tracking Mount. Post processing by Richard Bennion of CCDWare.

20 inch (0.51 meter) f/8.1 RC Specifications - 162 inch / 4115 mm focal length
20 inch f/8.1 Ritchey-Chrétien Zero Expansion Astro-Sitall Optics by Star Instruments certified to 1/4 wave P-V and 1/25 wave RMS or better. Fringe analysis and interferometric data supplied with each optical set. Enhanced Aluminum (SiO2/TiO2) overcoat - 96.9% reflectivity. "Ruggedized" construction allows for vehicle or trailer use, or mobile tracking mount, such as the Cine-Sextant. Low Expansion, light weight Carbon Fiber / Nomex Tube for superior performance and stability. 6061 and 7075 Aluminum components - All CNC Machined. Heavy Duty Precision Secondary Mirror Focuser. 2-Stage Primary mirror baffle with internal knife-edge light stops. Secondary light baffle. 6061 Aluminum Mounting Rings - CNC Machined, Clear Anodize Type II. Active Cooling. RCOS "Focus and Forget" Technology. Shipped fully assembled, collimated, and ready to use. RCOS Custom CNC Machined "light weight" Losmandy compatible dovetail plates, Clear Anodize Type II. Large Format (4.75" clear aperture) Fixed Instruments Adapter Set - FIALF. Built in carbon dew shield. Tube end ring (aluminum), Clear Anodize Type II. CNC machined "quick release" bayonet dust cover.	System	20" f/8.1
	Focal Length	4115mm
	Base Price	Call
	Delivery Status	45-60 Days Upon Receipt of Optics
	Back Focus	15"
	Overall Length/Diameter	60.6"/28.5"
	Primary Focal Length	60"
	Primary Hole	4.5"
	Primary to Secondary Spacing	39.70"
	Radius of Field Curvature	21.74"
	Secondary Amplification	2.70X
	Secondary Size	7.60"
	Total Weight*	217 pounds

*100% ready for imaging as equipped above including mounting rings and dovetail plates

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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