Timeline for Why is actual exposure changing as I go from one extreme to the other in aperture priority mode?
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| Nov 9, 2015 at 17:47 | comment | added | Iliah Borg | @ WayneF : The precision in photography is between 1/6 and 1/12 EV, best case. Mostly it is 1/3 EV. Point I was making, if you read, is not exact numbers. Point is - the EV values are different. And if you want to know the exact numbers, you need to have EXIF to see was it 1/60 or 1/64 or something else. The "exact calculator at top of page" on your link does not allow to enter the exact shutter speeds, and suggests ISO is a part of the exposure. It needs correction and/or explanation if it claims to be exact. | |
| Nov 9, 2015 at 17:14 | comment | added | WayneF | >For your shots the EV numbers are: 14.83 15.26 15.31 15.26. --- No, the first is EV 15, next three are EV 15.33. To do math, you have to use the precise actual values of fstop and shutter speed, not the approximated markings for humans. See scantips.com/lights/exposurecalc.html (see the second half of it) | |
| Nov 8, 2015 at 15:21 | comment | added | Krishnandu Sarkar | Thanks a lot for nice explanation Iliah :) I think I'd just shift to manual mode so that I can control the Shutter Speed looking at EV Monitor. | |
| Nov 8, 2015 at 14:07 | history | edited | Iliah Borg | CC BY-SA 3.0 |
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| Nov 8, 2015 at 14:00 | history | edited | Iliah Borg | CC BY-SA 3.0 |
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| Nov 8, 2015 at 13:55 | history | edited | Iliah Borg | CC BY-SA 3.0 |
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| Nov 8, 2015 at 13:46 | history | answered | Iliah Borg | CC BY-SA 3.0 |