Is there a way to guess an aperture and shutter speed by looking at a photo?

I'm taking a photography class and I lost my shooting notes. I was wondering if there was a way to guess the aperture and shutter speed just by looking at the negative. Its slide film so it may be simpler than a regular negative but I don't want to fail this assignment. Any suggestions?|||hang on your calling positives negative?





slides are positive not negative, they are called trannies in the industry (short for transparencies),








is ther a way to tell fstop and shutter - not really,





if they are night shots you can tell by looking at the pattern of the flare from any lights in the image roughly what apperture was used, also any movement in the image can give a clue to shutter speed,





but basically the answer is no, if i was you i would goto the teacher get another roll of film and go do it again with a note book and pen handy|||Well it would be really hard by the negative, easier by a print. If you know what kind of lens you were using sometimes you can get a near guess if you are familiar with what the dof looks like at each aperture. Shutter speed is much harder. Basically reshoot or hope it doesnt matter so much.|||You could get some clues from the objects in the frame, i.e. how much depth of field, and any movement or blurring. It won't get you spot on, but can get you close. I can look at night shots and tell the shutter speed by the amount of star trails. If it was shot at daytime with a wide angle lens, it will be really hard to tell unless you had a lot of wind.|||Buy more film and reshoot.





That is what we had to do under those circumstances when I was in photo school