Canon EF 16-35mm f2.8L II brand_Novoflex The RF mode is a

The RF mode is a magnified image of the rangefinder only- basically an optical version of the Live View zoom mode on newer mirrorless cameras that makes accurate focusing easy

Original Canon instructional for the model IVSB2 and similar

Note that this is the AI version

It has an MD mount

Canon EF 24-105mm f4L IS lens

Canon EF 16-35mm f2.8L II brand_Novoflex The RF mode is aThis Canon EF 16 35mm f2. 8L II lens is in excellent cosmetic condition overall, with a few minor scuffs at the hood mounting lugs. Hood shows minor surface wear from use. Clean glass and excellent image quality. A professional full frame ultrawide lens with Canon's premium L glass and construction, plus a fast f2. 8 constant aperture. Includes original box and hood.