Helios-44-M 58mm f2 for M42  type_Lens Cap Don't worry: you can just

Don't worry: you can just rewind the film into the original cassette when you're done shooting and process it normally

Runs on a single CR2032 battery (included)

Built-in stereo microphones

two umbrellas

it can save you some money if you're shooting a lot of film- but you can also customize roll length based on what you're up to

Helios-44-M 58mm f2 for M42 &nbsptype_Lens Cap Don't worry: you can justThis Helios 44 M 58mm f2 is a classic Soviet revision of an earlier Zeiss design, designed for the M42 thread mount. Smooth focusing, some oil on diaphragm which does not affect function, minor internal dust; cosmetic condition is very good. A fun lens in pretty solid shape.