Focal Reducer Speed Booster 0.72x Adapter Nikon F G lens to Canon EOS M EF-M M10
New Focal Reducer Speed Booster Adapter for. Focal reducer adapter for NIK/G - EOS M x 1. Caution: Blue spot occurs when the lens is shot to light sources. Old F mount (non-AI) lens cannot be used. It takes around 5 to 10 working.