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05/01/2007 12:47:28 AM · #1 |
Basically, does this mean there is a lot of color? A lot of bright and dark areas? How do I know my shot has enough 'Dynamic Range'. I understand that in CS2 it sometimes says there's not enough dynamic range. It says this even when I've bracketed the shots (So the EXIF files are all different) or photomatix can't find the exposure settings. So, what is dynamic range...in simple terms.
Edit: And how do those who enjoy making HDR images, how do you search for your image.
Message edited by author 2007-05-01 00:48:18. |
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05/01/2007 12:49:37 AM · #2 |
| The dynamic range is the difference between the darkest and lightest tones. Film and sensors cannot capture as wide a range of tones as the human eye. |
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05/01/2007 12:51:46 AM · #3 |
| With HDR you expose once to capture detail in the shadows -- basically blowing out the highlights, another exposure to get the midtones properly exposed, and a third where the highlights maintain detail, even though the shadow areas will "plug up" to a solid block. You then combine the best parts of each exposure so that all tonal areas have detail. |
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05/01/2007 01:08:01 AM · #4 |
as the good general said and don't forget that most HDR images will not look right until you tone map them.
There have been nearly a ton of forum threads about this and just the other day one discussing problems with exif data. You might be able to find more here.
as far as the question of "how you do you search for you image", not quite sure what you mean. How do you find an image you want to HDR and tone map? Well usually you decide on that before taking the picture but I have had many images where I had very dark areas or very light areas that I did tone mapping on and other adjustments on.
examples:
original image
tone mapped
tone mapped and filters applied
Notice how you see detail all the way from top to bottom unlike the original.
and this one I was playing with.
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05/01/2007 11:13:02 AM · #5 |
OK...I think I get it.
What I meant by how you find the image, I mean do you say to yourself "I have to find a place with lots of light and shade?" Or do you say to yourself "I have to find a place full of color and use my flash to do...?" |
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05/01/2007 11:39:05 AM · #6 |
Originally posted by heavyj:
What I meant by how you find the image, I mean do you say to yourself "I have to find a place with lots of light and shade?" Or do you say to yourself "I have to find a place full of color and use my flash to do...?" |
I think it's less should be less searching for places to use HDR and more of knowing when is a good time to use it.
HDR is a tool like other techniques. I know it is new(ish) and a lot of people are experimenting with it, but I think it is being overdone and used where it needn't be.
If a scene is very contrasty, use it. If not, just use good metering and get the shot.
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05/01/2007 12:20:00 PM · #7 |
Originally posted by fotomann_forever:
I think it's less should be less searching for places to use HDR and more of knowing when is a good time to use it. |
It's rarely a good time...and becoming the most over used and abused thing going at the moment.
IMHO... ;)
Message edited by author 2007-05-01 12:22:26. |
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05/01/2007 01:16:14 PM · #8 |
| I'd just like to get 1 good image...1...and that hasn't happened yet. |
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