Stellarvue SFF7-21 Photographic Field Flattener
This is our most popular modular flattener designed for the SV80, SV102, SV110 and all Stellarvue telescopes that operate at a certain focal ratio. The lens inserts into the 2" focuser and uses a tapered insert tube to more accurately seat the flattener in the focuser. A DSLR adapter is included with t-thread. The spacing distance from the T-thread on the flattener is 55 - 56 mm so it will work as is with any DSLR camera that have a t-adapter.
For other cameras including all ccd cameras, consult us. Usually, a t-thread extension is all that is needed. This flattener is designed for use with cameras having an APS or smaller chip. This is the majority of cameras on the market.
Stellarvue Product Number: SFF7-21