Re: Deciding where to place tonal information on histogram
- From: "C J Southern" <spamreport@xxxxxxxxxx>
- Date: Thu, 19 Jan 2006 23:36:06 +1300
<ronviers@xxxxxxxxx> wrote in message
news:1137662442.097522.130490@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>I just read two articles (links provided below) that seem to me to
> imply that if I have l large gaps on the right side of my histogram
> that I have not made best use of my digital camera? In other words, a
> good rule of thumb is to keep the tonal information of the subject as
> far to the right, without going past, as possible in order to best use
> the dynamic range capabilities of the sensor? Is that true or is that
> too simple?
True.
But the same applies to the left-hand edge of the graph as well - you want
to stretch it across the entire graph, or you'll end up with a shot thats
(taken to an extreme) perhaps ranging from dark to slightly lighter
(severely under exposed) or from light to totall blown out (severely over
exposed). The perfect exposure would be when the darkest point on your photo
was perfectly black and the brightest a perfect white - and everything else
somewhere in-between.
Things get tricky when you're looking at a histogram on a camera and
shooting raw - the histogram is built from a JPEG file, and is usually
somewhat conservative.
.
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