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skibum5
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Re: Shadow Banding Phenomenon!


gdanmitchell wrote:
skibum5 wrote:
A proper exposure exposes that so the brightest part of a scene that you want to retain does not get blow out and the rest falls where it does and that may mean all above the noise floor if the camera has enough DR for the scene or some below it if it does not.


It has always been the case and it is still the case that quite often a \"proper exposure\" is not a single exposure made by pointing the camera at the wide dynamic range thing and relying on the camera (whether digital of film) to just sort of \"do the right thing.\"

It has never been the case and I think it unlikely that it will soon be the case that scenes with large dynamic range are \"captured\" by relying on a camera with an extraordinarily large dynamic range, whether digital or film.

It has long been the case and it continues to be so (though less now in some ways than in the past) that there are well known and commonly used ways of handling scenes with tremendously wide dynamic range. They include but are not limited to the following:

1. Photograph the subject at a time and/or in circumstances when the light is better.
2. Use fill flash.
3. Use a GND filter
4. Make appropriate decisions about chemical processing to improve one end of the range while sacrificing the other.
5. Pre-expose film to light to give some density to the shadows (on negative film).
6. Use HDR, exposure blending, and similar techniques with digital systems.
7. Consider what is most important in the image and consider sacrificing a bit of what is less important to retain it.
8. Push shadows in post to some extent.
9. Reduce artifacts (banding, aliasing, color noise, etc) in post as needed.

It will be a lovely world when camera can deal perfectly with all imaginable subjects and exposure situations. That world has never existed and it is hard to imagine that it will exist soon. If a 12 stop DR is not enough and someone comes out with a camera that does 18 stops, there will still be a situation in which 18 isn\'t enough and somehow we\'ll still manage to photograph it.

Much ado about very little...

Dan


-1

yes, you do what you can whenever you can (but things like 4 and 7, etc. do nothing), but in some cases there ain\'t nothing you can do but skip the shot when maybe with 3 more stops you might not have to

why always such a drum beat for technology to stay as is?
if Canon think nobody cares and all there here is your side then all we will ever get is the same old opportunities?
why always striving to have people have creative freedom?

who are you to say much ado about nothing?



Apr 09, 2012 at 07:34 PM





  Previous versions of skibum5's message #10526711 « Shadow Banding Phenomenon! »