Gossen Lunasix 3 CdS light- exposure meter.

Some would say, the Rolls Royce of lightmeters and I would be inclined to agree

Very easy to use. Set the film speed (eg: 21 DIN / 100 ASA), point the meter at the subject and read the exposure value. Translate this via the dials to a suitable setting for your camers. (In the images, I have just measured the light outside on a bright, but sunless, day. EV is 18 and this equates to 1/125 second at f/8)

Complete with incident light slider for measuring, er, incident light

Totally lovely, heavy and well-made meter in a posh case. It feels like the business, because it is.

Runs on two PX625 batteries which are readily and cheaply available. None supplied, for postage reasons.

Weight, including case and batteries: 266g