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
-
S-Tec Yaw Dampener Computer xx1AWT (Pre-owned)
Original price was: $369.00.$92.25Current price is: $92.25. -
1275449GT Decal Operator Instruction Ground Control Sx-135Xc | Genuine Genie
Original price was: $17.21.$6.02Current price is: $6.02. -
FBM08BUT020A2 Pt0046 M8 X 20 Skt But A2 | JLG
Original price was: $1.07.$0.37Current price is: $0.37.



