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| p.1 #4 · Remember HDR? I could use some fine tuning on it.... |
I don't do HDR software images, but I do shoot in HDR conditions which typically have a strong shadow component to them. My observed (metered) diff between the direct lit and shadow side of a given subject is roughly 2 1/2 stops under Sunny 16 conditions.
That being said, I see little reason to bracket 2/3 of a stop. Tight bracketing makes sense if your trying to "nail the exposure", but for an HDR, I think tight bracketing is a bit folly. The recommendation @ 3 shots +/- 2EV seems viable.
I typically expose to safeguard highlights, +2EV, +4EV for a 3 shot set (or +3 EV for a 2 shot set) ... but I don't use HDR software. I manually blend, so I can't advise how my strategy would work with software. Best to perform your own testing to derive your workflow, but I'm not seeing the value for 9 images @ 2/3 stop intervals ... maybe 2-5-8 (2EV intervals) or 1-3-7-9 from your 9 shot set.