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

Started Oct 1, 2013 | Discussions thread
boardsy Senior Member • Posts: 2,215
Re: Examples

rubank wrote:

bobn2 wrote:

rubank wrote:

The simple fact is
that you have to choose: will you sacrifice the highlights or the shadows. With a scene where the DR is beyond what your camera can capture in a single exposure, this choice is of greater importance than what ISO routine you prefer.

Do you want to preserve highlights it is often better to choose underexposure at low ISO, at the cost of shadow colour and noise (esp. banding). If shadows are more important it is often better to choose high ISO, at the cost of highlight rendering.

Heavy shadow lifting commonly leeds to colour shift and banding noise, at least with badly lit scenery where major parts of the image is in deep shadow.
In daylight situations with minor parts of the image in deep shadow, lifting in post is mostly not a problem (unless you have an ISO-full camera).

These are my findings, based on extensive practice and not on science.

The point about knowing the science is that it lets you take out of the loop a lot of the 'extensive practice'.

Extensive practice has a lot of other benefits. You need 10 000 hours of practice (whatever you engage in) to get proficient. Try it.

That is, if you know what's going on, you have a fir idea what's going to work in the first place,

I do.

and particularly, how do you choose between this 'highlight' and 'shadow' DR.

The answer is quite simple in the end, you meter the highlights to take them just up to the limit and then get as much shadow legroom as you need.

The point of my post was that sometimes the scene DR is beyond the capacity of a single exposure and you do not always want to favour the highlights. Shadow footroom or highlight headroom is, in such a case, a matter of preference and choice. ETTR might not be the answer.

I´m sure you´ll get better with practice too:)

But surely one will get better faster, and probably ultimately better, by knowing how things work from the start? Just look at this randomly googled tutorial:

"Turning the ISO rating up will allow more light in. You can then increase the shutter speed or shrink the aperture while maintaining the proper exposure - the right amount of light coming in."

Completely wrong!

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