Altair PlanoStar 3" 1.0x Flattener for 102 110 115 130 refractors

This large format field flattener is designed to work with the Altair Astro 102mm, 115mm and 130mm F7 EDT Triplet APOs, and has an M48 rear conical adapter for connecting your DSLR or CCD camera. It is compatible with 35mm format CCD chips, utilising about 95% of the field. The flattener works best at F7 with about a half F stop tolerance. The flattener screws into the rear focuser rotator of your Altair EDT APO, converting it into an astrograph with a flatter photographic field. Focuser compatibility for direct-threaded attachment: Fits the new 2014 2.5" Rack 'n Pinion focuser on the 2014 Altair Wave Series refractors by means of an adapter (Product code: PLANOS-3-1.0-M48-RP25-ADAPT) which is ordered in the dropdown menu opposite. Simply remove the self-centering adapter and screw the adapter into the focuser body, then screw the flattener into the adapter. Fits the standard 3" Crayford Focuser on the pre-2014 Altair Wave Series refractors directly - remove the 2" pushfit a