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
-
154C162110 U2 Bundle Variable Speed | Genuine Haulotte
Original price was: $758.78.$189.69Current price is: $189.69. -
1001161725 Kit (Service), Backup Sensor | JLG
Original price was: $1,384.50.$298.00Current price is: $298.00. -
Used Futek LSB302 FSH04205 S-Beam Tension and Compression Load Cell, 25lb Cap, 2mV/V
Original price was: $150.00.$45.00Current price is: $45.00.



