The Askar 3 inch F3.9 full frame reducer features 4 elements optical design specifically for the FRA600, offers a 0.7X reduction in focal ratio, when used with the FRA600 astrograph, this reducer effectively shortens the exposure time, its focal length is reduced to 420MM, dramatically increases your field of view and bringing more convenience and possibilities for your visual use or astrophotography. The backfocus is the standard 55MM. It also has a built-in M48X0.75 (2 inch) filter thread that allows you to screw on filters conveniently.
Recently viewed products
-
Used Lightnin 172011PSP Mixing Motor Variable Speed Control 110/120VAC In, 90VDC Out
Original price was: $250.00.$75.00Current price is: $75.00. -
Used Elmo EMC-02H Camera Cable 14-Pin Round M/F 2m for CC431E, MN43H, CN43H, UN43H
Original price was: $350.00.$87.50Current price is: $87.50. -
Used Ferraz Shawmut 21038 Mersen Fuse Block 250V 100A, 3-Pole, Class H & K Fuses
Original price was: $99.00.$34.65Current price is: $34.65.



