Would it be possible to create a colour photo with B&W film if I mount the camera on a tripod and take three photos through red, green and blue filters and combine the scanned images into one?
>>3951175Maybe a V394/SR45 silver-oxide battery?
https://en.wikipedia.org/wiki/Pentax_Spotmatic#History>Mercury battery (1.35 V Mallory RM640) was used to power the light metering system; however due to the way the circuit is designed, silver oxide batteries can be used instead.