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robsb

San Jose, US
14838 posts

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"RE: Active D- Lighting - recreating ADL in post"

robsb Platinum Member Fellow Ribbon awarded for his expertise in CNX2 and his always amicable and continuous efforts to help members Laureate Ribbon awarded for winning in the Best of Nikonians 2013 images Photo Contest Donor Ribbon awarded for his enthusiastic and repeated support to the Fundraising Campaign 2014 Donor Ribbon awarded for his generous support to the Fundraising Campaign 2015 Nikonian since 23rd Aug 2006
Fri 03-Feb-12 06:05 PM

Eric thank you for doing the test. Your results match what I would have expected based upon my reading of thom's book and my discussion with Nikon. The only surprise to me was that at higher settings it left the reduced exposure active when ADL was turned turned off in post. Your exercise with trying to produce the same result without ADL also matches what I have been saying. The algorithm is complex and if you were ever able to match it, it would most likely be dumb luck, and therefore if you are not using a post processor that uses the Nikon tool kit, it is just better to leave ADL off. I think your testing was a great service to the rest of us in providing real data rather than having people listen to me beat my gums about how it functions without backup test data. One final comment from Nikon I would like to repeat here is that they never intended this ADL setting to be one that you would normally set to on in camera, but rather a handy tool to apply when you ran into a high dynamic range situation where you were trying to get the best image while minimizing blown highlights. DL comes close and is a post processing tool, but the methods used are not exactly the same as ADL.

Bob Baldassano
My Nikonians Gallery

"Nikonians membership - My most important photographic investment, after the
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Old age is a special gift that very few receive. Be thankful if you get it.

This is a hot, active topic! Active D- Lighting [View all] , ericbowles Moderator Awarded for his in-depth knowledge and high level skills in various areas, especially Landscape and Wildlife Photoghraphy Writer Ribbon awarded for for his article contributions to the community Donor Ribbon awarded for his very generous support to the Fundraising Campaign 2015 , Thu 02-Feb-12 09:10 PM
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