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 – Open box Lot of 20 Eaton BTM WASHER Flextray Wire Basket Splicing Washer 1-3/16in x 3/4in
Original price was: $30.00.$10.50Current price is: $10.50. -
New AXIS P1214-E Network Camera, 1/4in RGB CMOS, 25/30FPS, 1280×720, 8-28VDC PoE
Original price was: $600.00.$150.00Current price is: $150.00. -
Used Lot of 10 Wago 279-826 Double Potential Terminal Block, 800V 18A, DIN Rail
Original price was: $35.00.$12.25Current price is: $12.25.



