Sony FDA-EV1M lever The Gossen Colormaster 3F is

The Gossen Colormaster 3F is a sophisticated digital meter for flash and ambient light that measures colour temperature (in degrees and filter correction values) and light intensity (in lux or lux seconds)

rangefinder-style mirrorless camera with a hybrid electronic/optical viewfinder

Diaphragm is snappy

and features a standard Arca-type quick release system (one plate is included)

a focusing mount

Sony FDA-EV1M lever The Gossen Colormaster 3F isThe Sony FDA EV1M is a slip on EVF for select Sony cameras, including the RX1 (among others). It features a 2. 4 million pixel OLED, 90 degree tilt function, and plug and play operation. In excellent condition, with only minor cosmetic wear, good function. Includes leather hardcase.