HDR bracketing and long (bulb) exposures

Issue #1038 resolved
Former user created an issue

I've noticed that when using HDR bracketing, all images requiring a shutter speed longer than 30 seconds will use the shutter speed set "bulb timer" option. I don't know if this is fixable, but if it was working as expected, it would be useful for those wishing to create an HDR image of a dark scene.


HDR bracketing is set to 0 + ++, 5 shots, 0.5 EV intervals

bulb timer option is set to 3 minutes

the initial shutter speed is 20 seconds

The shutter speeds of the bracketed shots will be: 20s, 30s, 3min, 3min, 3min.

Meanwhile, to some extent, the problem can be worked around by simply making sure that only your brightest exposure will exceed the 30 second mark. Its shutter speed has to be set manually with the "bulb timer" option.

One thing that crossed my mind was extending the list of shutter speeds beyond 30 seconds. But could that solve it?

Comments (3)

  1. Former user Account Deleted

    So it works even beyond 30 seconds?

    I'm using 500D, and the autoexec is from January 14th. Have you made any related changes since then?

  2. Former user Account Deleted

    Apparently the autoexec from January 26th fixes the problem. I managed to find the link to it in a Vimeo discussion thread.

    Is there any central place where one can find the latest major/minor updates to the autoexec? The download tab at the top of this page doesn't seem to have anything newer than the Dec 22th autoexec, let alone the latest(?) Jan 26th autoexec.

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