I just had a Yashica Electro 35 fixed. Bought a roll of superia 400 (cheapest to try out) to test out low light. It seems like ISO/ASA 400 is more than sufficient in a lot of low light situations cos the yashica wasn't blinking. Seems contrary to my SLR experience where ISO 1600 is needed at times. Maybe my pics were underexposed. Someone can explain?