Noise Control for BIF - Shoot to the right at higher ISO or set correct exposure im camera ?

Started Nov 27, 2012 | Discussions thread
Glenn_Sydney
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Re: Noise Control for BIF - Shoot to the right at higher ISO or set correct exposure im camera ?
In reply to Sailor Blue, Nov 28, 2012

Sailor Blue wrote:

Glenn_Sydney wrote:

Sailor Blue wrote:

The camera meter rarely gives you the correct exposure for the best results. You need to learn how to interpret the scene in front of you and correct the meter reading.

When you use the Expose To The Right technique properly you are greatly improving your chance of getting the correct exposure. When you get the exposure right you minimize noise and maximize the quality of your images.

I suggest you read my tutorial on how to use the Highlight Alert to make ETTR easier. You should also go back and read the original articles on ETTR by Michael Reichmann.

Sailorblue - Digital Photography Review - HA-ETTR: An Easier Way To Expose To The Right Using The Camera's Highlight Alert


Thanks for the links.

I have actually seen your tutorial before and as a matter of fact do currently use this method. However, as stated, this quiet often means needing to up the ISO assuming that shutter speed cannot be reduced. However I am not sure that the exposure obtained this way is "correct" (for example if the bird and scene is dark - lower than middle grey) and may require exposure reduction in post. Not duing so would result in an unaturally bright bird and background. So from a noise point of view, the question is whether it may not have been better to simply set the camera for the right exposure (and lower ISO) for a start ?. your thoughts ?

Glenn

Yes, it is the correct exposure. With low contrast images it is still best to use the ETTL technique then lower the exposure in post processing. Doing it this way will give you the most details and least noise in the subject such as the bird you are describing. The caveat is that you don't want to overexpose anything that is important in the scene.

Noise is always most visible in the darkest parts of an image. When you use ISO to increase the exposure for an image like you describe then you will see less noise in the subject even after you reduce the exposure during post processing.

I suggest you read this article by Michael Reichmann on ETTR and look for the section on shooting a black cat in a coal pile.

http://www.luminous-landscape.com/tutorials/optimizing_exposure.shtml

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Living and loving it in Bangkok, Thailand. Canon 7D - See the gear list for the rest.

Thanks for the link once again.  I have read this article a while ago and it was good to refresh.

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