 pcmlphotography.com - Pamela C.M Lammersen  Contact Pamela C.M Lammersen Pamela C.M Lammersen's Gallery |
same film, same settings, different results Hello all just a question to satisfy my curiosity of your answers. Recently I did a shoot in very low lighting, I knew this would be the case and adjusted my gear appropriately. I used 2 cameras because there wasn’t much time to reload film, I had both cameras set on the same F-stop, used the same film, cameras read the dx coding the same, same lens, new batteries in both and to my knowledge besides the separate cameras all other settings were the same including the lighting conditions. When the film came back there was a huge difference in the exposure. The rolls from camera ‘A’ were great (maybe 1/2 stop under). The rolls from camera ‘B’ were so badly underexposed that the lab had a terrible time printing them, at a guess they must have been 2+ stops under. Do you have any idea why there should have been such a difference in the prints? I would expect maybe a slight difference but this was clearly like the incorrect film was used or flash didn’t fire or F-stop was incorrect on one of the cameras. I cant explain why the difference since I double checked everything. Any suggestions? Anything I could have forgotten? I am very curious.
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Mark Feldstein |
Howdy Pam ! For openers, I'm going to assume you were using both cameras in some type of manual mode so when you set the f-stops and shutter speed, there was no meter system that would change them, right? What kind of cameras btw? The first thing to do is look at the negatives from A&B on a light table/box and check to see if their exposure density looks pretty close. If so, then my guess is this was a printing problem and get the negs from B reprinted. If this was color negative film, a 1 1/2 stop difference isn't all that tough to fix in the printing. If it's transparency film..welll, that's a bit tougher. And, assuming the light was really low, (I don't know how low though) if your flash wasn't firing on B body, seems your images would be a few more stops under, not just 2, but that depends on ambient light too. So, how low was the light and what ISO were you using, what f-stop and shutter speed? The other thing you can have looked at which won't help for this recent gig but rather later, is get both bodies the bodies checked particularly their shutter speeds. It could be the B body is just a little too fast for it's own good and underexposing or maybe the A body is a little too fast too. Shutter speed problems are usually pretty easy for a competent repair dude or dudette to fix and not expensive. Usually covered in the cost of a CLA (cleaning, lube and adjustment).
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pcmlphotography.com - Pamela C.M Lammersen Contact Pamela C.M Lammersen Pamela C.M Lammersen's Gallery |
Hi Mark thanks for your answer. In response to your comment. Yes both camera's were on manual mode (good point though). The negs were the first thing I checked and one is for sure under exposed more than the other so it was not a printing problem (kuddos to the lab they did a great job on makeing them look as good as they could). Both camera's were minolta xtsi, both had 28-70 lens on them. I think I will get the bodies checked out because one of them always feels strange in my hand like I get the feeling something is wrong with it. or maybe just upgrade to something else for xmas:-). thanks and if you can think of anything else let me know. I appreciate it
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Mark Feldstein |
My bet is the body needs a little adjusting, maybe some lube, and a good cleaning. Let us know what they find, if anything. And my pleasure Pam. Any time.;>) Marl
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