Author Topic: Optimised strategy for hand held exposure bracketing  (Read 860 times)

garry23

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Optimised strategy for hand held exposure bracketing
« on: February 06, 2018, 11:26:55 PM »
Some may be interested in my latest experiments, all using ML of course!

http://photography.grayheron.net/2018/02/optimised-strategy-for-hand-held.html

a1ex

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Re: Optimised strategy for hand held exposure bracketing
« Reply #1 on: February 07, 2018, 04:44:03 PM »
TLDR:

Paper: hasinoff-hdrnoise-2010.pdf (TLDR there: figure 4)

In ML:
- Enable bracketing, large EV step (say 5 stops), ISO shifting: Full, sequence 0++ (important)
- start at the exposure for highlights (e.g. 1/8000 ISO 100, or whatever Auto ETTR suggests)
- set max auto ISO limit in Canon menu (e.g. 3200)
- run the bracketing sequence

For the above numbers, this will give the following sequence:
1/8000 ISO 100
1/8000 ISO 3200
1/250 ISO 3200
1/8 ISO 3200
4" ISO 3200
...

Will explain the theory later. While it's by no means an optimal sequence in the sense described in the paper, I believe the above settings will give a very good approximation, so I'd definitely recommend giving it a try, even if the total exposure time is not an issue.

For hand-held bracketing, I'd recommend researching this idea (gap-less exposures, technically possible, just didn't look too much into it).

garry23

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Re: Optimised strategy for hand held exposure bracketing
« Reply #2 on: February 07, 2018, 05:55:50 PM »
@a1ex

Thanks for the ‘gapless’ Link, I need to look deeper into that to understand it, ie 360 degree shutter etc.

As I said in my post, my initial interest is to see if I can find the best handheld bracketing strategy.

Cheers

Garry