Optolong L-Pro Clip Filter for Canon 5D/5D Mark II/III & 6D FF Cameras petzval still ideally sized for use

still ideally sized for use with their Air-Chair observing stool

Parfocal eyepiece require little to no focusing when changing from low to high power

Includes EQ dovetail/Tripod adapter

8" Losmandy D and Vixen style universal saddle

Focal Ratio: f/10

Optolong L-Pro Clip Filter for Canon 5D/5D Mark II/III & 6D FF Cameras petzval still ideally sized for useThe Optolong L Pro EOS FF Clip is a multi bandpass filter which offers better color balance by maximizing the transmission band. The balanced transmission allows astrophotos to be taken with minimal color cast on broadband emission objects such as galaxies, reflection nebulae and globular star clusters. Optolong EOS FF DSLR Clip In Filter is compatible with the following cameras & lenses: Canon EOS 5D Canon EOS 5D Mark II Canon EOS 5D Mark III Canon