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
-
New Lot of 2 Danfoss 06908E-668 Crimp Hose Fittings, 90° Elbow, 13/32in JIC 37, -8
Original price was: $35.00.$12.25Current price is: $12.25. -
Used Allen-Bradley 193-BSB 30 B Overload Relay, 2-3 Amp Range, 600V, 10A Max
Original price was: $45.00.$15.75Current price is: $15.75. -
B39-00-0019 Spring-Comp-Cat Switch Block-.484 Od X.400 Long -Tin Plate | Genuine Haulotte
Original price was: $8.92.$3.12Current price is: $3.12.



