DX coding weirdness
I have an unusual problem here. I have been on holiday, and have been shooting with my Contax G2 and rolls of Fuji Neopan 100 film. One afternoon, I stuck in a roll of APX 100 film and shot with my 21mm lens and viewfinder, and did not peer through the actual camera viewfinder until most of the roll was used up.
When I did look through the viewfinder though, I noticed that the metering was funky... it was showing a shutter speed of 1/6000 for a bright sunny scene at f4 or so. I was shocked at this. I checked the top of the camera display and it read "DX" as it has always done - but when I checked the ISO setting by pressing the ISO button, it read "2500", whereas it should only have been 100!
I guess I should really have checked, but I'd always trusted my cameras to read the DX properly.... and a further snag was that I was using my 21mm viewfinder and not the camera viewfinder so I did not notice any odd metering readings until it was too late.
So I took out the APX film and put in a fresh roll of Neopan 100. The DX reading was correct this time, at a 100.
I'm stumped - the batteries are fresh-ish, I replaced them about 4-5 rolls of film ago, a few months back. Has anyone experienced similar weirdness with their G2 cameras?
Any way I can realistically salvage a roll of ISO 100 film shot at ISO 2500?? (It is Agfa APX 100... not sure how much it can be pushed without resulting in golfball grain).