Just developed the first roll out of the Zorki-3C. Exposure for shutter speeds 1/25th thru 1/1000th all look good. I didn't even try the slower speeds, I know they are bad. Frame spacing is good too. The roll is drying now. I will scan tomorrow and post some pics. The 3C is my favorite of the two. They are essentially the same but somehow the 3C just feels a little bit more solid in the hands...... I really like these little beasts....