Pls show examples where increasing brightness in post better than increasing ISO.

Started Oct 1, 2013 | Discussions thread
ultimitsu Veteran Member • Posts: 6,650
Re: examples where increasing brightness in post is better than increasing ISO.

PhilPreston3072 wrote:

gollywop wrote:

Well, not exactly missing the point since you didn't say "reduce ISO" to begin with; you said "reduce exposure." That's a rather different thing, and there certainly was no need to reduce exposure -- which is the point we guys were making.

Also, not having taken the shot, and not having familiarity with the D7000, I don't know just what indication Pierre had or didn't have as to what was being clipped. One of the problems with shooting with high ISO to achieve a desired degree of brightness in-camera is that you often don't have control over (proper indication of) highlight clipping.

With an ISO-invariant camera like the D7000, shooting at base ISO and applying brightening in processing gives you far more control in avoiding such problems. There is no need to take the chance with in-camera ISO.

I'm afraid you are still missing the point. If you're testing ISO6400 performance and finding that highlights are clipping then of course you have to reduce exposure.

it is you who is missing the point. it is well arguable that both shots got the right brightness - the sky is black and the walls is lit. the fact that inside the building detail preserved is a bonus. reduce ISO to 100 without any in-computer brightening (which is what you are advocating) would give you detail in the building but no details at all on the walls.

Most, if not all DSLRs will show 'blinkys' and histograms to show highlight clipping so getting those shots right should not be that hard at all.

See how you are missing the point?

You could always set a slightly lower ISO to give yourself a bit of headroom for changing situations.

but then the part that suppose to be bright, is now dark.

But I don't know how much good the image playback in camera would be when the ISO100 shot is 6 stops underexposed. How do you know the focus is right,

obviously 6 stops under is the extreme and is intended as a demonstration. there will be times that it is difficult to see where focus is at 6 stops under. but that is a different issue, and nothing to do with the IQ advantage.

there's no motion blur,

pretty easy. there are still bright parts in the iso 100 shot.

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