Just a quick post to say I've tweaked the auto ETTR functionality in the M3 Landscape Bracketing Script: as usual downloaded from the link on the right.
You can now set an ETTR exposure, from either an under or over exposed exposure, by pressing the RIGHT button.
You can ‘calibrate’ the ETTR settings via choosing the % of the histogram to use. For example, a value of 5 here means adjust exposure until the top 5% of the histogram has zero percent overexposed. You can also tell the script to use the various quartiles of the histogram, ie the top quartile, through to the full histogram.
In addition, you can use the auto ETTR when auto focus bracketing.
As an example, the following test image was taken outside our house last night. I set the script to manual focus bracketing, set the exposure for the foreground, set sky/infinity bracketing to ETTR, and set focus using the script's focus bar feedback, ie to the desired infinity blur.
Post processing was in Lightroom, with a short trip to Photoshop to blend the two exposures.
As usual I welcome any comments or feedback on this post.
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