The Agat 18 is a small cheap all plastic Soviet-made half frame 35mm camera of dubious quality. The glass triplet lens is actually quite sharp for such a low end camera, but the inferior (mono) coating makes it very prone to flaring. Couple this with light leak problems and it seems to fall more into the "toy camera" realm than that of a serious camera, but it is still rather fun to shoot. The camera is totally manual, though not in the typical sense, since it works only in a "mechanical program mode" were you first set the film speed (16-250 ASA) and then just use the "sunny-16" icons on the front dial. The camera adjusts both aperture and shutter speed (1/30-1/250) for a perfect exposure (it actually works quite well). The 28mm lens is scale focused from .9m-infinity. The camera is one of the smallest and definitely the lightest half frame 35mm cameras that you can buy .
Frame size: 18x24
Lens: Industar-104 2.8/28
Shutter: estimated by weather symbols.
Comes with strap and transparent plastic lenscap.
Original price in year 1985 - 19 roubles(confirmed)
add : different models (including dark silver grey body) from A&C Berry coll.)
A partial disassembly instructions thread
is posted in the Nelsonfoto forum.