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Av bracketing in custom continuous mode on a620

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Av bracketing in custom continuous mode on a620
« on: 23 / October / 2009, 09:06:53 »
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Hello,
I recently came across CHDK and I've been having fun trying out the new features.  I can take bracketed exposures using either Av or Tv, but the result is always the same.  It brackets the shutter speed with either setting.  Note that the display also indicates:
Bracket: +/-
Tv: 1Ev

no matter which mode I am in.  It isn't a switch issue since the camera indicates the switch between modes.  I've also tried powering the camera on in Av mode, and switching to continuous or custom, to no avail.  What am I doing wrong?

Not a major problem since most of the time I wish to bracket on shutter speed anyway, which works super, but I would like to resolve this.

CHDK 0.9.8-820
OCT 19, 2009
1:15:58
a620
100f
Compiler GDC 4.4.0
Downloaded from the Autobuilds link off the wiki.

P.S.  Love CHDK, it really adds a lot of capability to my camera. :D

Regards,
Fullmetal

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Offline fudgey

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Re: Av bracketing in custom continuous mode on a620
« Reply #1 on: 24 / October / 2009, 06:53:31 »
CHDK bracketing doesn't care about the camera's shooting mode. You can bracket Av or Tv (or ISO) in any shooting mode you like. If you want to try Av bracketing, you need to set CHDK for Av bracketing, not for Tv bracketing. It's in the same menu.

Re: Av bracketing in custom continuous mode on a620
« Reply #2 on: 25 / October / 2009, 09:17:55 »
Thanks fudgey!

Basically, within the chdk menu, if bracketing Tv is set to any value, CHDK will use it no matter what the Av setting is.  I changed the Tv setting from 1/3 Ev to Off and CHDK now uses the Av setting.

Fullmetal

 

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