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the sx10 porting thread

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Offline jsgarvin

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Re: the sx10 porting thread
« Reply #210 on: 19 / April / 2009, 16:45:05 »
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Quote from: timnan on 19 / April / 2009, 12:10:49
Is there anybody working on 1.01b?
Looks like many guys here use 1.01b, please help if you guys can. Thank you.

Quote from: reyalp on 17 / April / 2009, 16:28:44
Note, no amount of people saying they want a particular revision ported makes any difference in how likely it is to actually get ported.

I'm also looking forward to 1.01b, but it'll get here when/if it gets here.  Nagging those who freely donate their time and expertise to making it happen isn't going to help.
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Offline psachs

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CHDK with SX10 IS Firmware GM1.02B
« Reply #211 on: 20 / April / 2009, 18:25:18 »
Pardon my ignorance.  I just purchased a SX10 IS yesterday. Having used CHDK successfully in the past with several prior Canons I own, I naturally want to use it with the SX10 IS. 

When I check the firmware on my camera, it indicates "GM1.02B"  I am assuming, (perhaps incorrectly) that the version of CHDK currently available will not work on this Firmware, but that I will have to await a newer port. 

Could someone kindly correct me if I am incorrect?

Thanks in advance.
« Last Edit: 20 / April / 2009, 18:37:01 by psachs »
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Offline reyalp

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Re: the sx10 porting thread
« Reply #212 on: 20 / April / 2009, 21:29:13 »
Only 101a is currently supported.
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Offline ytjade

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Re: the sx10 porting thread
« Reply #213 on: 21 / April / 2009, 02:01:20 »
Mine is 1.02B as well. Cross my fingers that eventually it will be ported.

Thanks
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Offline psachs

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Re: the sx10 porting thread
« Reply #214 on: 21 / April / 2009, 05:11:11 »
Quote from: reyalp on 20 / April / 2009, 21:29:13
Only 101a is currently supported.
Thanks for the quick reply and clarification.
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Offline djin

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Re: the sx10 porting thread
« Reply #215 on: 23 / April / 2009, 15:43:28 »
Is there a way CHDK can include Bulb mode? I mean, CHDK in general, for all cams, but especially on THIS camera, it's really IMO the only feature that's missing... and CHDK seems the only solution. But is it possible?
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Offline mellinger

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Re: the sx10 porting thread
« Reply #216 on: 24 / April / 2009, 03:30:39 »
Hi,

Essentially there is bulb mode on the camera now.  If you install the latest build of CHDK and install it on your SX10, you can get exposure lengths of 2048 seconds.  That works out to be about 30 minutes.

Now I know bulb can go for longer, but because of the small sensors on these cameras, I don't think you'd want much longer anyway, or you might get a really crappy looking image.

But really, with 30 minutes, you can capture alot.  I think you could even do star trails.  I've seen some good ones on flickr that were about 20-30 minutes. 

So anyway, no real option of bulb yet, but getting better.  Plus, like I said earlier, with the SX10 having the smaller sensor, bulb might not work so well anyway.  Others thoughts?

Mike
http://www.flickr.com/theworldismycanvas
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Offline fe50

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Re: the sx10 porting thread
« Reply #217 on: 24 / April / 2009, 04:15:08 »
Quote from: mellinger on 24 / April / 2009, 03:30:39
Essentially there is bulb mode on the camera now.  If you install the latest build of CHDK and install it on your SX10, you can get exposure lengths of 2048 seconds.  That works out to be about 30 minutes.

Exposures over 2048 are possible when you set "Shutter speed enum type" to [Factor] & use the value * factor settings...
E.g. Override Shutter Speed Value [25] * Value Factor [100] --> 2500 s (~41.6 minutes) exposure time...
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Offline mellinger

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Re: the sx10 porting thread
« Reply #218 on: 24 / April / 2009, 05:55:39 »
Fe50,

Thanks, I didn't realize that was possible. 

So technically then, what is the longest exposure one could get?  And would it be recommended?  Because I would imagine it could get quite noisy.

For example, would you recommend more to have one photo shot with long exposure, or maybe 20 shots at shorter exposure and merged together?

Mike
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Offline fe50

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Re: the sx10 porting thread
« Reply #219 on: 24 / April / 2009, 06:46:56 »
Quote from: mellinger on 24 / April / 2009, 05:55:39
So technically then, what is the longest exposure one could get?
Not tested yet, maybe only limited by the size/type of the processor registers used in the code...(i guess ewavr knows  ;) )

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And would it be recommended?  Because I would imagine it could get quite noisy.
Hmm - recommended ? - No, not really !
Canon limits exposure to 15 seconds on all (?) cameras, maybe not only to avoid complaints due to bad/noisy images, maybe to prevent hardware damage...
Very longer exposure times may have "adverse effects" to the sensor or other electic components.
E.g. the continuous high power consumption for such a long timespan (we talk about 20 or 30 minutes !)
could be a problem.

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For example, would you recommend more to have one photo shot with long exposure, or maybe 20 shots at shorter exposure and merged together?
I'd prefer the 2nd cause...

Extremly long exposure times without special hardware modifications produces too bad/noisy images.
--> Have a look to the following threads:
* Hardcore modding on a A530, thanks to CHDK!
* extra long exposures...
Merging images is IMO the better way...
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