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using live histogram
Looking for tips and help in using live histogram while shooting. Is it better to do it live, which takes more time, or do it later while editing?..

Comments (7)

The reason for using the histogram when you are taking shots is to check your exposure and particularly whether highlights will be blown: http://www.dpreview.com/.../learn/?/Glossary/Digital_Imaging/Histogram_01.htm.

There is absolutely no point in delaying checking the histogram until later - by then it is impossible to go back and adjust the exposure if the histogram shows that it was wrong..

There are other reasons for checking the histogram during editing, e.g. to show whether you need to do a "levels" adjustment or, if you are shooting raw, to see whether you need to try to recover blown highlights.Chris R..

Comment #1

I could be wrong but I think the histogram is a good guide to help you get a well exposed shot at the time of shootingif there is not a nice smooth curve then the exposure is either under or over-exposed.. I read somewhere that it's better to air on the side of caution and under expose and image rather than over expose it as it's easier to darken and image... Could be wrong tho...

Comment #2

The_Tourist wrote:.

I could be wrong but I think the histogram is a good guide to helpyou get a well exposed shot at the time of shootingif there is not anice smooth curve then the exposure is either under or over-exposed..i read somewhere that it's better to air on the side of caution andunder expose and image rather than over expose it as it's easier todarken and image... Could be wrong tho..

I agree with you but recently I saw a comment on "exposing to the right". So now I guess I'll try this.http://www.luminous-landscape.com/tutorials/expose-right.shtml..

Comment #3

If you under expose an image you would have to lighten it later not darken it. which of the two is easier with software?..

Comment #4

Doto41 wrote:.

If you under expose an image you would have to lighten it later notdarken it. which of the two is easier with software?.

Both are equally easy..

However, for several reasons, it's better to make the histogram fit into the available range of values. If you see a big vertical line at either end, something is probably wrong. IF you absolutely HAVE to make one end or the other "clip", then it's better to "clip" the blacks..

Charlie DavisNikon 5700, Sony R1, Nikon D300HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/..

Comment #5

Under exposing gets you more noise, especially in the shadows..

Over exposing gets you blown highlights, but better detail in the shadows (and less noise)..

Exposing to the right basically means pushing the exposure to the right side of the histogram, but not exceeding it (ie: blowing highlights)..

See this article....

Http://www.luminous-landscape.com/tutorials/expose-right.shtml.

And this....

Http://luminous-landscape.com/...anding-series/understanding-histograms.shtml.

The greatest of mankind's criminals are those who delude themselves into thinking they have done 'the right thing.'- Rayna Butler..

Comment #6

I agree..

The histogram is VERY useful. More useful, IMO, than the record review shot itself. The first thing my eye falls on after the shot (if there's any doubt about the shot) is the histogram. Only if the histogram passes muster do I bother looking at the image itself if at all. Sometimes I check *only* the histogram..

If your camera can do it, have it automatically display the histogram after each shot, rather than having to call it up. Also, have it display each color channel (RGB) separately, if possible (often a DSLR-only feature). Shooting indoors, for instance, it's easy to blow out only the red channel while green and blue are close. By seeing each channel individually, you can easily determine this..

Http://www.pbase.com/digirob..

Comment #7

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This question was taken from a support group/message board and re-posted here so others can learn from it.

 

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