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 Computar TV LENS 25mm 1:1.4 for CCD/TV Cameras, ø25mm Lens, ø30mm OD, C-Mount
Original price was: $65.00.$22.75Current price is: $22.75. -
Used SMC AW20-N02-6CZ Filter Regulator, 7-125PSI Set, 5µm Filtration, 1/4in NPT
Original price was: $27.50.$9.62Current price is: $9.62. -
Used Clippard FV-3D Ported Stem Valve 150 Psig Max, 10-32 Thread, 1.5 Lbs Force
Original price was: $32.00.$11.20Current price is: $11.20.



