Canon IXUS 220 HS Aperture

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Canon IXUS 220 HS Aperture
« on: 23 / September / 2014, 19:09:50 »
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I just installed chdk and noticed it didn't have any of the forced aperture settings. So let me confirm my understanding.

The 220 HS has a fixed aperture with a variable aperture zoom. Hence, the only way to change the f-stop is by changing the zoom.

Is that correct??

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Offline reyalp

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Re: Canon IXUS 220 HS Aperture
« Reply #1 on: 24 / September / 2014, 01:00:24 »
The 220 HS has a fixed aperture with a variable aperture zoom. Hence, the only way to change the f-stop is by changing the zoom.
Yes, this is true of essentially all the ixus/sd line and A series (except some A series from before 2009 or so)

These cameras do have a neutral density (ND) filter. This can be used to reduce the amount of light reaching the sensor by several stops, and affects the aperture value recorded in the exif.
Don't forget what the H stands for.

Re: Canon IXUS 220 HS Aperture
« Reply #2 on: 24 / September / 2014, 02:59:02 »
The ND filter is a basically a binary thing right? It is either on or off.

Re: Canon IXUS 220 HS Aperture
« Reply #3 on: 24 / September / 2014, 08:06:47 »
Correct.
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