Yashica Close-up Diopter No.1 for Bay 1 skeleton 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)

Good autofocus and diaphragm action

ready for many more years of use

And the lenses are very high quality to boot

The included Mamiya-Sekor 90mm f3

Yashica Close-up Diopter No.1 for Bay 1 skeleton The Gossen Colormaster 3F isThis Yashica close up diopter set provides extra magnification for close up photography with your Yashica TLR (though it should fit any lens with a Bay 1 filter mount.) In excellent condition, with original case. Includes viewing and taking lenses.