eos M10 port - page 27 - DryOS Development - CHDK Forum supplierdeeply

eos M10 port

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Re: eos M10 port
« Reply #260 on: 15 / March / 2020, 08:28:16 »
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Disabling camera correction didn't change the values.

I downloaded CHDK a month ago for M10 - is it recent enough for CHDKPTP?

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Offline srsa_4c

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Re: eos M10 port
« Reply #261 on: 15 / March / 2020, 08:39:34 »
I downloaded CHDK a month ago for M10 - is it recent enough for CHDKPTP?
No, please upgrade to the current release (= copy the zip content over the existing CHDK files on card).

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Offline reyalp

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Re: eos M10 port
« Reply #262 on: 15 / March / 2020, 16:13:52 »
You'll also need the latest chdkptp Lua files (actually just gui.lua) from SVN for the wheel buttons to work on this port https://app.assembla.com/spaces/chdkptp/subversion/source/HEAD/trunk/lua
Don't forget what the H stands for.

Re: eos M10 port
« Reply #263 on: 15 / March / 2020, 20:44:19 »
I tested the current CHDK release for M10 and the wheel works in CHDKPTP. Thanks.


Re: eos M10 port
« Reply #264 on: 20 / March / 2020, 06:34:47 »
I tried taking an image with faster shutter speed than 1/4000 using

Re: eos M10 port
« Reply #265 on: 20 / March / 2020, 06:37:25 »
I tried taking an image with faster shutter speed than 1/4000 seconds using TV override but it produced the same image as with 1/4000 seconds. Are fast shutter speeds supported?

Re: eos M10 port
« Reply #266 on: 20 / March / 2020, 10:18:16 »
I tried taking an image with faster shutter speed than 1/4000 seconds using TV override but it produced the same image as with 1/4000 seconds. Are fast shutter speeds supported?
This is the hardware limit of the shutter and cannot be shortened.
M100 100a, M3 101a, 2*G1x (101a,100e), S110 (103a), SX50 (100c), SX230 (101a), S45,
Flickr https://www.flickr.com/photos/136329431@N06/albums
YouTube https://www.youtube.com/channel/UCrTH0tHy9OYTVDzWIvXEMlw/videos?shelf_id=0&view=0&sort=dd

Re: eos M10 port
« Reply #267 on: 20 / March / 2020, 10:44:00 »
Can the M10 lenses be used with another CHDK camera without this hardware limitation (e.g. M3)? The f/1.4 lens and f/2 lens cannot always be used outdoors at lunch time at their largest aperture (sometimes the picture is overexposed at ISO 100 and shutter speed 1/4000 seconds).


Re: eos M10 port
« Reply #268 on: 20 / March / 2020, 11:04:15 »
Can the M10 lenses be used with another CHDK camera without this hardware limitation (e.g. M3)?
I don’t think there is a cam without this limits
The f/1.4 lens and f/2 lens cannot always be used outdoors at lunch time at their largest aperture (sometimes the picture is overexposed at ISO 100 and shutter speed 1/4000 seconds).
Then you have to use an ND filter.
M100 100a, M3 101a, 2*G1x (101a,100e), S110 (103a), SX50 (100c), SX230 (101a), S45,
Flickr https://www.flickr.com/photos/136329431@N06/albums
YouTube https://www.youtube.com/channel/UCrTH0tHy9OYTVDzWIvXEMlw/videos?shelf_id=0&view=0&sort=dd

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Offline srsa_4c

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Re: eos M10 port
« Reply #269 on: 20 / March / 2020, 12:11:49 »
I don’t think there is a cam without this limits
The M3 port implements CAM_EXT_TV_RANGE (exp_drv_task), I would expect it to support shorter exposures. You could try (if you dare), whether that's the case.

The 1/4000 s limit is the Canon user interface limit (on M10, M3, also M6, etc) and likely the hardware's design limit (why would they build in a more durable shutter).
IIRC reyalp has experienced (temporary?) shutter malfunction on one of his small sensor compacts when he was shooting larger number of pictures with shorter-than-factory exposure times. It would seem that fast shutter speeds put extra strain on the shutter hardware. This is one of the reasons why the M10 port does not implement CAM_EXT_TV_RANGE.

 

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