I just got back a roll (120) of fuji provia 400 x transparencies from development in a large commercial lab. I am a little bit disappointed by the blacks on this roll. They are somehow blue/brown transparent even in the unexposed parts of the film. I do have other rolls of provia 400 x where in the same range of tones there are still details visible in dark parts of the images. Now I ask myself: Is it likely that this is due to the fact that I used my last roll of old provia 400 x film? If I remember right, it expired 2008 and it was stored the last year in my photo bag and not in the fridge, like my other films. Then it will get better with the fresh provia I bought last month. Or is it more likely that the reason is the (cheap) development in a large commercial lab? Then I should send my next films to a smaller high-quality lab. Does someone of you had this experience before and figured out the reason?