>>3114932have used both, agat's only upside is size/weight, the chaika is bigger/heavier than a lot of 35mm compacts. Infinitely better control-wise and iq-wise though. Awful focus shift on that industar-69 though. They're both bottom of the half frame barrel bad but the Agat is another kind of bad entirely. The shutter and aperture are physically the same thing and you're stuck using prefixed combinations and the lowest you can go is f2.8@1/63ish, no bulb and the lens is horrid soft wide open. exclusively a daylight snapshot cam. Here's a photo Catsby took with one.