RC Optical Systems Field Flattener

RCOS 70mm Field Flattener...

For RCOS Telescopes equipped with 12.5 inch Ritchey-Chrétien Optics.

Ray trace layout - 12.5" f/9 optics.

Field Flattener assembly showing lens cell in the RCOS Mounting Plate with AP 2.5 inch Extension tube and AP-2-STL Threaded Adapter. The mounting plate is similar to the FIA mounting plate, but with a larger thread to accommodate the Field Flattener Cell. It is also designed to fit inside the 2004 Model (or newer) Precision Instrument Rotator and is non-rotating.

Product	Reviewer	Date	File
Field Flattener - 68mm	Russell Croman	October 2004	PDF - 597KB

Designed exclusively for RC Optical Systems, this Field Flattener reduces field curvature and off axis astigmatism, while also reducing off axis spot size. The FFC mounts on the back plate or inside the 2004 Model (or newer) PIR. There is no telecompression and will allow the optics to operate at their native f/ratio.

Designed specific to the 12.5RC, but will work with the 14.5RC, and 16RC. Ideal for use with 35mm square format CCDs.

RC Optical Systems Field Flattener (FFC)
ITEM:	PRICE:
Field Flattener. Part #FFC-70mm	$1750
Mounting Plate (not required if used with the PIR). Part #FFC-Mount	$85
Spacer for 14.5RC, 16RC (specify which) to correctly set back focus.	Call

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RC Optical Systems, Inc. An Arizona Corporation
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