The Farpoint FP496 F 0.5 and F 0.33 focal reducer for 1.25 inch Telescope Nosepieces will typically reduce exposure times to near a quarter when imaging extended objects like galaxies, nebulae and the Moon. Telescopes with low focal ratios require shorter exposures when imaging extended objects (for example an f/8 system will require four times the exposure of an f/4 system). This does not apply to non extended objects (point sources) like stars where aperture dictates what can be seen/captured.
|Focus||F0.5 & F0.33|
|Compatibility||1.25 inch telescope nosepieces|
|Construction||Metal and glass|