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 Phd R13R 2180-D-A-E-T Air/Oil Rotary Actuator, Bore: 1 “, Angle of Rotation: 180ø
Original price was: $220.00.$66.00Current price is: $66.00. -
New Precision Dynamics B2012 Solenoid Valve, 1/8in NPT, 300psi Max, 120VAC Coil
Original price was: $95.00.$33.25Current price is: $33.25. -
Used Marathon 1512STD Terminal Block Connector Barrier 12 Position 30A 600V 10-16AWG
Original price was: $50.00.$17.50Current price is: $17.50.



