HowTo? S110 and long exposures? - Hello, I'm a NEWBIE - HELP!! (Newbies assistance, User Guides and thank you notes) - CHDK Forum
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HowTo? S110 and long exposures?

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Offline l_d_allan

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HowTo? S110 and long exposures?
« on: 10 / March / 2014, 11:31:24 »
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Pre-newbie with CHDK. I've used MagicLantern on my Canon DSLR for a year or so.

I've gotten CHDK 103a build 3376 installed on my S110, and it mostly seems to be working fine. Thanks!

I'm unclear how to get Long Exposures to work past the default of 15 seconds.

I've enabled Tv over-ride, and specified a maximum of 4 minutes: 00:04:00. However, in Tv and Manual, the long exposure limit of 15 seconds hasn't changed.

Things like the Intervalometer script work, so I think the installation is ok. My main interest in CHDK is the intervalometer, including star trails.

Operator error? Is there some other setting I'm unaware of? Should I be using a different build? Have others been able to get the S110 to do long exposures?

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Offline reyalp

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Re: HowTo? S110 and long exposures?
« Reply #1 on: 10 / March / 2014, 12:49:14 »
Quote from: l_d_allan on 10 / March / 2014, 11:31:24
I'm unclear how to get Long Exposures to work past the default of 15 seconds.

I've enabled Tv over-ride, and specified a maximum of 4 minutes: 00:04:00. However, in Tv and Manual, the long exposure limit of 15 seconds hasn't changed.
CHDK does not change the range available in the canon interface. You set the exposure you want in the overrides and shoot.
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Offline waterwingz

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Re: HowTo? S110 and long exposures?
« Reply #2 on: 10 / March / 2014, 13:17:46 »
Quote from: l_d_allan on 10 / March / 2014, 11:31:24
Things like the Intervalometer script work, so I think the installation is ok. My main interest in CHDK is the intervalometer, including star trails.
You might be interested in this :  http://chdk.wikia.com/wiki/Meteor_Intervalometer_with_Dark_Frame_Management
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Offline l_d_allan

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Re: HowTo? S110 and long exposures?
« Reply #3 on: 10 / March / 2014, 14:16:10 »
Quote from: reyalp on 10 / March / 2014, 12:49:14
CHDK does not change the range available in the canon interface. You set the exposure you want in the overrides and shoot.

Thanks. Works fine. I was able to take a 60 second exposure in a darkened room. I suppose this camera will go over 64 seconds.

I'm gradually starting to sync up with how CHDK works. Very impressed.
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Offline l_d_allan

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Re: HowTo? S110 and long exposures?
« Reply #4 on: 10 / March / 2014, 14:17:30 »
Quote from: waterwingz on 10 / March / 2014, 13:17:46
You might be interested in this :  http://chdk.wikia.com/wiki/Meteor_Intervalometer_with_Dark_Frame_Management

Thanks for your patient assistance to this newbie. I'll give that script a try.
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Offline l_d_allan

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Re: Works with glitches ... EXIF and lower left display show 60s when over 60s
« Reply #5 on: 11 / March / 2014, 07:27:49 »
Quote from: l_d_allan on 10 / March / 2014, 14:16:10
Quote from: reyalp on 10 / March / 2014, 12:49:14
CHDK does not change the range available in the canon interface. You set the exposure you want in the overrides and shoot.

Thanks. Works fine. I was able to take a 60 second exposure in a darkened room. I suppose this camera will go over 64 seconds.

I am able to have exposures over 60 seconds, such as 30, seconds, 90 seconds, 2 minutes, and 5 minutes.
However, the display is somewhat confusing / misleading.

In the upper left corner, there are small red numbers indicating hh:mm:ss, and are consistent with what was entered in the over-ride.
Oddly, in the lower left corner, the value 60" appears in rather large numbers: For example, 2 minutes, 30 seconds:

Code: [Select]
**************************************************
*    00:02:30                                    *
*                                                 *
*                                                 *
*                                                 *
*                                                 *
*     60"                                        *
**************************************************
Also, the EXIF in the .cr2  is ok for 30 seconds to 60 seconds, but remains at 60 seconds for exposures over 60 seconds. Should I change to the camera making a .dng, or would that not made a difference?

« Last Edit: 11 / March / 2014, 07:30:50 by l_d_allan »
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Offline waterwingz

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Re: Works with glitches ... EXIF and lower left display show 60s when over 60s
« Reply #6 on: 11 / March / 2014, 07:59:22 »
Quote from: l_d_allan on 11 / March / 2014, 07:27:49
In the upper left corner, there are small red numbers indicating hh:mm:ss, and are consistent with what was entered in the over-ride.  Oddly, in the lower left corner, the value 60" appears in rather large numbers: For example, 2 minutes, 30 seconds:
While CHDK overrides are very useful and allow you to do things the Canon firmware will not allow, they have the limitation that the Canon firmware does not know they are active.  So the Canon firmware will continue to process things to the best of its ability - including limiting its OSD values to the valid range it can handle.  Just something you have to live with when using CHDK.

Quote
Also, the EXIF in the .cr2  is ok for 30 seconds to 60 seconds, but remains at 60 seconds for exposures over 60 seconds. Should I change to the camera making a .dng, or would that not made a difference?
It won't make any difference - see my comment above.
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Offline l_d_allan

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Re: Works with glitches ... EXIF and lower left display show 60s when over 60s
« Reply #7 on: 11 / March / 2014, 08:34:54 »
Quote from: waterwingz on 11 / March / 2014, 07:59:22
Just something you have to live with when using CHDK.

Ok. Thanks for the prompt reply. I am Very Appreciative of the time and effort that goes into developing and maintaining CHDK.
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