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05-07-2007, 10:04 PM   #1
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k10d firmware update

A link to the first long update suggestion thread:

https://www.pentaxforums.com/forums/pentax-dslr-discussion/3398-k10d-firmware-1-2-a.html

And now, on with the show...

Allow the use of fixed aperture exposure bracketing in manual mode

Currently, when in manual mode, the use of exposure bracketing alters both shutter speed and aperture to obtain the requested EV values. This is useless when trying to make an HDR image, as the aperture must remain fixed. Yes, you can use Av mode and lock the exposure, but this has a max 30 second timer. If you've ever tried to make an HDR pano, 30 seconds isn't long enough to bracket the multiple pieces of the whole. If I've overlooked something, please let me know.

John

05-08-2007, 03:58 AM   #2
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DS has a custom menu option where you set how AEL button set exposure in M mode. Whether by altering #1 aperture and time (default), #2 just time, #3 just aperture. I believe that if you're in mode 2 you can do the bracketing you mentioned. Will check when I get home.
05-08-2007, 04:13 AM   #3
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I may be mistaken now, and just plain stupid....

But exposure bracketing in M(anual) mode ?
Why do you do that ? Why not just set different shutterspeeds ?

You don't have to change the aperture, there.
Just take multiple manual shots. No need for auto-bracketing.

Regards,
Beej80
05-08-2007, 05:35 AM   #4
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Autobracketing is faster.

05-08-2007, 08:09 AM   #5
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Original Poster
QuoteOriginally posted by Beej80 Quote
But exposure bracketing in M(anual) mode ?
Why do you do that ? Why not just set different shutterspeeds ?
To optimally acquire the exposures needed for an HDR (high dynamic range) image, the camera needs to remain in a fixed position, preferably on a tripod. If you dial in the exposure settings manually between each shot, you will likely move the camera ever so slightly, and image quality will suffer in post processing. If you set up for bracketed exposures, you can fire them all off with a remote control. Also, like Matjazz said, bracketing is much faster, which becomes especially important when acquiring multiple exposures for an HDR pano image in rapidly changing light. With bracketing, you just fire off your exposures, pan the camera on the tripod, and repeat for the next image.

John
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