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SD series exposure algorithms?

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Offline hoodsmom

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  • SD750 101B
SD series exposure algorithms?
« on: 27 / September / 2008, 16:06:28 »
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Does anyone know where I might gain insight into the algorithms used by the Canon engineers to determine aperture and speed, but I sure can't figure their algorithm out.  Or, to put it another way, short of using CHDK firmware, can I trick my SD750 into using an aperture that **I** and not the camera want?
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Offline Hacki

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Re: SD series exposure algorithms?
« Reply #1 on: 27 / September / 2008, 16:18:05 »
Your camera does not have a controllable aperture. There's only a hole with a fixed width somewhere in your lens assembly..

The whole IXUS (aka SD*) series does not have an aperture. Some of the older A* models dont have apertures too.

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