eos M10 port - page 26 - DryOS Development - CHDK Forum
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eos M10 port

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Re: eos M10 port
« Reply #250 on: 11 / March / 2020, 14:59:37 »
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Is there a risk of damaging the lens by overriding the value (I'm assuming the reported value is 108 and I'm trying to force a larger aperture value of 96)?

Re: eos M10 port
« Reply #251 on: 11 / March / 2020, 16:50:17 »
Is there a risk of damaging the lens by overriding the value (I'm assuming the reported value is 108 and I'm trying to force a larger aperture value of 96)?

I would never say no, but I have tried many times and have never had any problems ...
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 #252 on: 11 / March / 2020, 17:10:38 »
Here's the avtest log (up to around f/2.8).

Re: eos M10 port
« Reply #253 on: 12 / March / 2020, 03:29:46 »
Here's the avtest log (up to around f/2. 8) .
Thanks...
The result of the AV Test:
1) The whole scene is still underexposed by more than 1EV (meter96 curve is less than -96 (96 is one EV)). Script still say ‘WARN: BAD SCENE histo underexp’. I have no idea what the impact is.
2) The three pre shoots show very well the accuracy of a measurement. More recordings would give better statistics. The deviations with an open aperture probably show the variance of the light source.
3) Between f1.4 and f1.6 the meter96 changes by around 1/3EV (32 APEX96 values). I have no idea what that means. It could be the influence of vignetting as it changes significantly in this range.
 
I never checked it with my Sigma 24mm f1.4. If I find time, I will do it. Then I could investigate the center and corners separately.
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 #254 on: 12 / March / 2020, 12:57:04 »

I got the f/1.4 Canon EF-M 32mm lens. Here are the 23 and 29 values for f/1.4, f/1.6 and f/1.8 (the f/2 till f/8 values are the same as the 22mm lens).
First column is 23 values, second is 29.
108 96
132 128
156 160
I checked this with my M3 + Sigma 24mm F1,4 DG Art. The only difference is at f1.4. I got 96 and not 108. 96 is what I would expect.
@ aloniv
Could you please check the value at f1.4 again?
Propcase  23    29
f1.4 =       96    96
f1.6 =      132  128
f1.8 =      156  160 
f2.0 =      192  192
f2.8 =      288  288
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 #255 on: 15 / March / 2020, 02:11:36 »
Sorry I missed your reply (I didn't receive an email notification). I'm attaching an image I took using CHDKPTP GUI that shows the two values at f/1.4. Incidentally, is it possible in the GUI of CHDKPTP to use the touchscreen to change the focus region (I couldn't figure out how to use the touchscreen at all)?  Also, how does one change shutter speed, aperture and ISO in the GUI of CHDKPTP in manual mode (which sequence of buttons does one need to press)?

Re: eos M10 port
« Reply #256 on: 15 / March / 2020, 06:54:16 »

I'm attaching an image I took using CHDKPTP GUI that shows the two values at f/1.4.
Interesting. Attached an image M3 + Sigma 24mm F1,4 DG Art.
I don’t know where the difference comes from the cam or lens and what it means.
May be its part of the lens correction. May be you can try it without. The Sigma has no lens correcting.
f/2 is still differently exposed compared with the others. Here's the log.
As you can see here, I don’t have the issue on image M3 + Sigma 24mm F1,4 DG Art.
https://chdk.setepontos.com/index.php?topic=13532.msg142886#msg142886
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 #257 on: 15 / March / 2020, 07:21:51 »
How can I turn off lens correction (is it part of the regular Canon menu or the CHDK menu or in both and if so how does one access it)?


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Offline srsa_4c

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Re: eos M10 port
« Reply #258 on: 15 / March / 2020, 07:35:23 »
How can I turn off lens correction (is it part of the regular Canon menu or the CHDK menu or in both and if so how does one access it)?
The Canon menu (red, SHOOT2) in rec mode - lens aberration correction.

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Offline srsa_4c

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Re: eos M10 port
« Reply #259 on: 15 / March / 2020, 07:45:02 »
Incidentally, is it possible in the GUI of CHDKPTP to use the touchscreen to change the focus region (I couldn't figure out how to use the touchscreen at all)?
Neither CHDKPTP nor the M10 port support touchscreen operations. Moving the focus region might be possible at some point, depending on the result of a research (which has not been done as far as I remember).
Quote
  Also, how does one change shutter speed, aperture and ISO in the GUI of CHDKPTP in manual mode (which sequence of buttons does one need to press)?
Use the "up" button to move highlight between exposure controls, then use the "wheel r" and "wheel l" buttons to simulate movement of the ring that's around the shutter button. You need a very recent CHDK build for the wheel simulation to work.

 

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