SD980 beta release - page 37 - CHDK Releases - CHDK Forum
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SD980 beta release

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Offline lalex

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Re: SD980 beta release
« Reply #360 on: 06 / November / 2011, 11:32:42 »
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"you'll see the real mechanic structure"
Yeah, saw it! Thanks. But the diagnosis means that the "ND-filter" item in the "Extra photo operations" menu is an atavism and will not work correctly. As I described above, it works only in non-script mode, and the result is not reflected in EXIF. So it gives the doubtful result. Setting ND-filter IN/OUT gives maybe 1 step, maybe more. Now I have a courage to try "set_av", at least.

The next issue is a set of props, I found here the most fresh "New Digic IV". Doubtful that it's fully convenient to our camera (as well as all previous sets). Now I'm trying to set/determine the shooting process, and any of props 200 - 210 don't return anything except zeros. The #208 seems to give a 1 after a shot is made, but it's marked as "Flash Ready status" in the previous "Digic III & Digic IV" propset.

Seems that branch is abandoned by developers, so we have to maintain it ;) Our beta seems to be far from end :(
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Offline waterwingz

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Re: SD980 beta release
« Reply #361 on: 06 / November / 2011, 11:50:28 »
Quote from: lalex on 06 / November / 2011, 11:32:42
Seems that branch is abandoned by developers, so we have to maintain it ;) Our beta seems to be far from end :(
CHDK is an all volunteer affair - there are no "developers" who maintain things.  Code for a camera is either maintained by someone who owns the camera or it becomes abandoned.  From that point of view - you are now a "developer".   Welcome onboard !
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Ported :   A1200    SD940   G10    Powershot N    G16
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Offline lalex

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Re: SD980 beta release
« Reply #362 on: 06 / November / 2011, 12:44:39 »
"you are now a "developer""

I had to guess it before :( So now I must tesst not only 10 props, but all of them.
NB: prop 208 becomes 1 when half_shoot is pressd, prop 210 - only when flash is activated. What to do with this knowledege?
« Last Edit: 12 / March / 2012, 14:22:09 by lalex »
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Offline hamfent

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Re: SD980 beta release
« Reply #363 on: 05 / February / 2012, 11:41:22 »
As far as I can tell - as indicated by the IXUS 200/SD980 the diaphragm has ten steps giving the following apertures:

f 2.8, 3.2, 3.5, 4.0, 4.5, 5.0, 5.6, 6.3, 7.1, 8.0
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CHDK on : Powershot A590, Ixus 860, Ixus 200, Ixus 310, Powershot S100, Powershot G15
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Offline lalex

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Re: SD980 beta release
« Reply #364 on: 12 / March / 2012, 14:33:21 »
Yeah, great!
But this doesn't help to manipulate it from the CHDK menu or script. Any attempts seems to be inefficient. I tried all: set_av, set_av_96 etc, as well as props from Digic III and IV and of course, "ND-filter" from "Extended photo operations" :(
I didn't test totally my A530 (because it has Manual mode)? but remember that its ND-filter was also similarly stubborn. I may be wrong, but this aperture/NDfilter issue may be just declared, but not resolved in CHDK. To test some other cameras can be useful to understand.
« Last Edit: 13 / March / 2012, 06:15:17 by lalex »
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Offline srsa_4c

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Re: SD980 beta release
« Reply #365 on: 14 / March / 2012, 09:08:56 »
@lalex
I've enabled the iris (CAM_HAS_IRIS_DIAPHRAGM) in this build:
CHDK-ixus200_sd980-101c-1.0.0.zip - 0.20MB
Let us know whether it works.
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Offline hamfent

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Re: SD980 beta release
« Reply #366 on: 24 / March / 2012, 16:22:30 »
@srsa_4c


I have tested the iris with the given build, all the values in CHDK work upto 8.56, and every chdk value that works gives a different aperture/iris size.

Tested in fairly dark conditions with a 4second exposure, ISO 80, lens fully zoomed out.

chdk values = camera/exif values
2.87 = 2.8
3.01 = 3.2
3.18 = 3.2
3.38 = 3.5
3.64 = 3.5
3.98 = 4.0
4.44 = 4.5
4.80 = 5.0
5.05 = 5.0
5.49 = 5.6
5.37 = 5.6 (in wrong position should be between 5.05/5.49)
6.05 = 6.3
6.80 = 7.1
7.63 = 8.0
8.56 = 8.0

9.61, 10.79, 12.11 all give the same iris size as 8.56

thanks
hth
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CHDK on : Powershot A590, Ixus 860, Ixus 200, Ixus 310, Powershot S100, Powershot G15
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Offline lalex

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Re: SD980 beta release
« Reply #367 on: 03 / April / 2012, 17:23:25 »
2srsa_4c: "@lalex: I've enabled the iris (CAM_HAS_IRIS_DIAPHRAGM) in this build: CHDK-ixus200_sd980-101c-1.0.0.zip - 0.20MB Let us know whether it works."

Thanx you very much. Sorry, but I missed the gift: уour link doesn't work anymore (((

« Last Edit: 03 / April / 2012, 17:26:35 by lalex »
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Offline srsa_4c

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Re: SD980 beta release
« Reply #368 on: 03 / April / 2012, 17:26:51 »
Quote from: lalex on 03 / April / 2012, 17:23:25
Thanx you very much. Sorry, but I I missed the beginning of distribution: уour link doesn't work anymore (((
Don't worry about that. The change got into the official CHDK, just download a current autobuild version.
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Offline lalex

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Re: SD980 beta release
« Reply #369 on: 08 / April / 2012, 06:41:19 »
Downloaded 1791b, it works, GREAT! I can now make auto-panoramas!!!
Repeated the test of Hamfent in the low daylight (in the room), with 1/60 shutter speed. The same results with non-significant difference:

chdk values - camera - exif values
2.87 - 2.8 - 2.8
3.01 - 3.2 - 3.19
3.18 - 3.2 - 3.19
3.38 - 3.5 - 3.51
3.64 - 3.5 - 3.51
3.98 - 4.0 - 4.00
4.44 - 4.5 - 4.51
4.80 - 5.0 - 5.02
5.05 - 5.0 - 5.02
5.49 - 5.6 - 5.60
5.37 - 5.6 - 5.60 (still in wrong position)
6.05 - 6.3 - 6.30
6.80 - 7.1 - 7.10
7.63 - 8.0 - 8.00
8.56 - 8.0 - 8.00

9.61, 10.79, 12.11 all give the same as 8.56. Zoom, ISO and shutter speed doesn't change this in any way.
« Last Edit: 08 / April / 2012, 06:45:48 by lalex »
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