tmL
TPF Noob!
- Joined
- Jul 5, 2011
- Messages
- 81
- Reaction score
- 4
- Location
- New York
- Can others edit my Photos
- Photos OK to edit
Hey guys, I'm wondering what would be best in a low light situation, raising the ISO to get exposure closer to what it should be or just taking the picture with less than perfect exposure and fixing it PP? I'm talking what would be best in terms of preserving image quality?
For example, I'm shooting a night market and see a great scene. I hop over to take a shot at 1/80 (I prefer not to go below so let's make this a constant) F/4 (lowest the lens will go) and ISO 400. I know from reading my meter that the picture will come out darker than I would like but let's pretend I have to make a quick decision between taking the shot or switching the ISO to 800 and taking it. Should I change the ISO or just just fix the exposure PP? In other words, would the noise that I save from staying at ISO 400 result in a better image (after PP to fix exposure) than if I just took the picture at ISO 800 and did less PP? What if I were in same situation but my original ISO is 800 and I have to move it to 1600 to get the more correct exposure, would that change your answer? Keep in mind I'm on a T2i (and a 17-40L just for pretends).
Am I correct in assuming that PP (increasing exposure, brightness, whatnot) has some negative effect on image quality (sharpness)? I just don't know how to weigh the quality loss with the quality loss of higher ISOs. Thanks for the help, input greatly appreciated!
For example, I'm shooting a night market and see a great scene. I hop over to take a shot at 1/80 (I prefer not to go below so let's make this a constant) F/4 (lowest the lens will go) and ISO 400. I know from reading my meter that the picture will come out darker than I would like but let's pretend I have to make a quick decision between taking the shot or switching the ISO to 800 and taking it. Should I change the ISO or just just fix the exposure PP? In other words, would the noise that I save from staying at ISO 400 result in a better image (after PP to fix exposure) than if I just took the picture at ISO 800 and did less PP? What if I were in same situation but my original ISO is 800 and I have to move it to 1600 to get the more correct exposure, would that change your answer? Keep in mind I'm on a T2i (and a 17-40L just for pretends).
Am I correct in assuming that PP (increasing exposure, brightness, whatnot) has some negative effect on image quality (sharpness)? I just don't know how to weigh the quality loss with the quality loss of higher ISOs. Thanks for the help, input greatly appreciated!