Askar f/3.9 Reducer for FRA400 Refractor - FRA400-RED Meade Closeout F/ratio: F/5

F/ratio: F/5

The prism inside TrailSeeker ED is made of high quality BaK-4 glass with both phase and dielectric coatings so that more light is reflected off the prism so that it reaches your eyes

the EdgeHD tube has been redesigned to make sure you get the most from your optics each and every night

5 kg) Counterweight

1 arc second Tracking Automatic Tracking Rate celestial

Askar f/3.9 Reducer for FRA400 Refractor - FRA400-RED Meade Closeout F/ratio: F/5Effectively reduce the 400 mm focal length of the Askar FRA400 astrograph to 280 mm by adding the dedicated Askar f 3. 9 Reducer to your imaging set up! The reduction factor of the full frame FRA400 reducer is 0. 7X, and put another way, takes your f 5. 6 FRA400 refractor to a fast f 3. 9, cutting your exposure times in half! Telescope side threads are M68x1 and the camera side has M48 x 0. 75 threads that accept 2" filters as well as a M48 T ring or