- With original bag
- Aperture 60mm, focal length 330mm
- After adding the focal reducer, the focal length is 261mm and the aperture is f/4.3
- With 60mm long dovetail, there is a 1/4 inch hole on the plate, which can be installed on a conventional equatorial mount or camera tripod
- The reducer already includes a matching adapter to achieve the ideal 55mm back focus