I just made a couple exposures of a squirrel on 6x6 Neopan 400 that I kind of want. Trouble is, I metered the scene afterwords with my OM2 and it seems that I underexposed by 2-3 stops. Normally what I do for a 2-stop push is use Diafine. Trouble is there were a bunch of exposures on the roll before that were exposed in daylight at box speed or a little under if anything. They are probably just as valuable as the squirrel exposures. I've never tried Diafine on exposures made at box speed so I'm not sure whether to try to push with D76 or use Diafine. If it wasn't for the recent underexposure I would probably develop for ten percent less than the standard time like I always do when I shoot in Texas sunlight.