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dadisigursveinn / 400plus

Automatically exported from code.google.com/p/400plus
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AEB on burst & AV switches to M automatically #281

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
I can't seem to figure out what I am doing wrong here:

1. I want to take several brackets (5,7 or 9) manually (by clicking the shutter 
one at a time) but the only way it seems to work is by going to the 400plus 
menu, selecting the number of frames etc and pressing 'set' on the camera's 
central button whereby it starts a full burst of the number selected without 
pausing until the completed number of photos are taken.

Going back to the main canon menu and pressing the shutter only gives me the 
standard 3 exposures (as per the original feature).

2. When i do get the several brackets as described above, the first is in 'AV' 
which is what i want (according to the LCD info) but all others after that in 
the bracketed series are in 'M' mode.

3. Opening those brackets in Digital Photo Professional gives the info that 
they are all '0' exposures which is clearly not the case.

Original issue reported on code.google.com by da...@parr2407.fsnet.co.uk on 10 Sep 2012 at 9:40

GoogleCodeExporter commented 9 years ago 
I'm afraid this is all known limitations and expected behavior:

1.
All scripts are launched from the menu, not the shutter button; we haven't 
(still?) hacked the shutter button, and thus that button fires a shot normally. 
Moreover, to use the EAEB script, the AEB feature from the camera is not used 
at all; indeed, it is disabled during the execution of a script.

2/3.
In the EAEB script, the first shot is made in whatever mode the camera is when 
the script is started; then we read the exposure parameters used by the camera, 
and fire the rest of the shots in M mode. We are not tricking the camera to 
make a wider AEB, we are doing our own AEB.

This method guarantees that all shots after the first one have the right 
exposure, even if the amount of light in the scene changes during the sequence 
(see issue #15). There is no exposure compensation in M mode, as DPP reports, 
and unfortunately that makes them seem as individual unrelated images.

Original comment by eduardo....@gmail.com on 26 Sep 2012 at 8:04