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PowerShot Full-resolution silent pictures?

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Offline KenO

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PowerShot Full-resolution silent pictures?
« on: 21 / July / 2014, 11:56:39 »
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A friend sent me a link to Magic Lantern post "Full-resolution silent pictures"
http://www.magiclantern.fm/forum/index.php?topic=12523.125

Was impressed with video Full-resolution silent pictures 4k test
Full-resolution silent pictures 4k test

Did a quick forum search using "Full-resolution silent pictures" but got nothing so am posting to get comments concerning this.

Hope this can also be done on at least some of the PowerShots!!!

Ken


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Offline KenO

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Re: PowerShot Full-resolution silent pictures?
« Reply #1 on: 21 / July / 2014, 12:09:03 »
Forgot to add that I am interested in doing some time lapse photos using CHDK.

Noticed mention by Levas "It means that you can  take full resolution pictures without using the shutter mechanism. For normal photography this isn't really that interesting. The most interesting part right now would be time lapses. DSLR's can take about 100,000 pictures (the expensive ones more) before the shutter mechanism wears out. Timelapse videos with a frame rate of 25 FPS take (60seconds x 25 pictures) 1500 pictures per minute. So if you want 1 minute of time-lapse video you need 1500 pictures. Now with this new development, you can make a time-lapse, for example, 1500 pictures, and the shutter mechanism is only used one time (by opening it for live view). So this way we could make a lot more time-lapse before the shutter mechanism breaks down..." http://www.magiclantern.fm/forum/index.php?topic=12523.75

Does anyone have info concerning the number of shots before the PowerShot shutter mechanism breaks down?

Ken

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Offline reyalp

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Re: PowerShot Full-resolution silent pictures?
« Reply #2 on: 21 / July / 2014, 16:21:22 »
P&S generally use a very simple leaf shutter, so they should last a very long time. Anecdotally, I've seen complaints about the shutter starting to stick when they got old (e.g. http://chdk.setepontos.com/index.php?topic=11712.0), but not particularly from heavy timelapse users.

The shutter is there to prevent the sensor from accumulating charge during readout.
Don't forget what the H stands for.

 

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