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
-
70007001 Shaft, Input | JLG
Original price was: $234.99.$70.50Current price is: $70.50. -
920070 Sr355A095 Power Bridge Link | JLG
Original price was: $32.44.$11.35Current price is: $11.35. -
Used Phoenix Contact UM 45-FLK34 2962599 Varioface Module 34-Pin IDC to PCB Terminals
Original price was: $95.00.$33.25Current price is: $33.25.



