Unable to use zoom during video for sx200is - General Help and Assistance on using CHDK stable releases - CHDK Forum
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Unable to use zoom during video for sx200is

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Offline jt256

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Unable to use zoom during video for sx200is
« on: 24 / October / 2009, 19:30:59 »
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I have the chdk small version (d) working nicely on my canon sx200is. The default option is ticked for enable zoom during video, but I haven't been able to get this to work during videoing.

Am I doing something wrong, or is it not yet possible?

Thanks
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Offline theplague

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Re: Unable to use zoom during video for sx200is
« Reply #1 on: 26 / October / 2009, 13:30:06 »
You should be able to zoom during the video without using CHDK, but you will be limited to 4-5x digital zoom, which looks horrible.
If you are using CHDK, make sure the option is selected on the CHDK menu and before you start recording the video zoom in all the way, 12x, now start the recording, as soon as you started recording zoom all the way out, now you can use the optical zoom freely during the recording, it will look great most of the time, but be aware that when using optical zoom during the recording the lens won't update the focus automatically, that's a known limitation.
When you are done recording use the Canon built-in menu function to TRIM the beginning of the video when you had the zoom set at 12x.
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Offline jt256

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Re: Unable to use zoom during video for sx200is
« Reply #2 on: 27 / October / 2009, 21:35:52 »
Darn it, doesn't work for me. Don't know what I'm doing wrong, tried the zoom in all the way trick,
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Offline rkg1979

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Re: Unable to use zoom during video for sx200is
« Reply #3 on: 17 / January / 2010, 08:39:00 »
This doesn't work for me either. I am using CHDK for 1.00C Jan 4th version, which is the latest available. Any help in this would be greatly apprecited
Quote from: jt256 on 27 / October / 2009, 21:35:52
Darn it, doesn't work for me. Don't know what I'm doing wrong, tried the zoom in all the way trick,
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Offline OldGit

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Re: Unable to use zoom during video for sx200is
« Reply #4 on: 17 / January / 2010, 10:55:36 »
All,
you need to read the "readme" file (part of the Full zip) or the developers page for SX200.
Both tell you this.......
Quote
Note that sound recording is always on when Optical Zoom is enabled in Video Record mode

To enable Optical Zoom during Video, set Digital Zoom = Standard in the Canon menu, set Enable Optical Zoom in the CHDK menu. Start recording, click zoom out lever then use optical and digital zoom as normal.

Manual AF Scan - set "AF Key" in CHDK menu to "Set" or "Shutter", then use during Video to force a single AF Scan.
Also note that during video zoom, if you go from optical into digital range, you need to stop (release the zoom lever) as you go back from digital into the optical range.

OldGit
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SX200 IS-100C
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Offline rkg1979

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Re: Unable to use zoom during video for sx200is
« Reply #5 on: 17 / January / 2010, 12:15:21 »
Thanks OldGit. This worked for me. Is there a way to reduce the sound during zooming in or out. This is really disturbing.
Quote from: OldGit on 17 / January / 2010, 10:55:36
All,
you need to read the "readme" file (part of the Full zip) or the developers page for SX200.
Both tell you this.......
Quote
Note that sound recording is always on when Optical Zoom is enabled in Video Record mode

To enable Optical Zoom during Video, set Digital Zoom = Standard in the Canon menu, set Enable Optical Zoom in the CHDK menu. Start recording, click zoom out lever then use optical and digital zoom as normal.

Manual AF Scan - set "AF Key" in CHDK menu to "Set" or "Shutter", then use during Video to force a single AF Scan.
Also note that during video zoom, if you go from optical into digital range, you need to stop (release the zoom lever) as you go back from digital into the optical range.

OldGit
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Offline OldGit

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Re: Unable to use zoom during video for sx200is
« Reply #6 on: 18 / January / 2010, 01:01:49 »
Quote from: rkg1979 on 17 / January / 2010, 12:15:21
Is there a way to reduce the sound during zooming in or out.....
You can try using the slower zoom (half zoom) speed, but the position of the mic . right next to the lens and motor, mean that you will always get the noise.
Most people just edit it out afterwards.
OldGit
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SX200 IS-100C
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