#978 Manualfocusdrive has no effect on my 5D III

[Emmanuel BOCQUET]

Hi,

This following command line succeed on my Canon T1i but not on my 5D III (same lens), I tried to modify some parameters on my camera but manualfocusdrive has no effect on my 5D III. I used this lens : 100mm f2.8 IS L.
My firmware is the last one. gphoto version (last one) has been compiled on my Raspberry pi (debian 7.4)

/usr/local/bin/gphoto2 --capture-preview \
--capture-image \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--capture-image \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--capture-image

Thanks

[Marcus Meissner]

is the preview still running after capture-image is callerd? can you add perhaps another capture-preview after the capture-image and see if that helps?

also a debuglogfile might help to look what is wrong

[Emmanuel BOCQUET]

Thanks to help me...
I activated --debug.. (I attached the log file)

I notice this error :

12.290189 camera_get_config(2): Getting property 'Color Space' / 0xd10f
12.290541 gphoto2-widget(2): Setting value of widget 'Color Space' to 'sRGB'...
12.291066 camera_get_config(2): Getting property 'Exposure Compensation' / 0xd104
12.291428 camera_get_config(2): Failed to parse value of property 'Exposure Compensation' / 0xd104: ret -1
12.291779 camera_get_config(2): Getting property 'Focus Mode' / 0xd108
12.292159 gphoto2-widget(2): Setting value of widget 'Focus Mode' to 'Unknown value 0003'...
12.292510 camera_get_config(2): Getting property 'Canon Auto Exposure Mode' / 0xd105
12.292890 gphoto2-widget(2): Setting value of widget 'Canon Auto Exposure Mode' to 'Manual'...
...

On my T1i, same script :

7.774253 camera_get_config(2): Getting property 'Exposure Compensation' / 0xd104
7.774665 gphoto2-widget(2): Setting value of widget 'Exposure Compensation' to '0'...
7.775074 camera_get_config(2): Getting property 'Focus Mode' / 0xd108
7.775415 gphoto2-widget(2): Setting value of widget 'Focus Mode' to 'One Shot'...

[Emmanuel BOCQUET]

I tried your suggestion to add a capture preview after each capture image. Now, the focus change but not consistent (sometime there is no change :-( )

my new script :

/usr/local/bin/gphoto2 --force-overwrite --debug --debug-logfile gphoto.log --capture-preview \
--capture-image \
--capture-preview \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--capture-image \
--capture-preview \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--set-config-value /main/actions/manualfocusdrive="Near 3" \
--capture-image

Thanks for your support.

[Emmanuel BOCQUET]

I'don't understand results are not consistent..

[Emmanuel BOCQUET]

I tried another tests. With EOS Utility, Manualfocusdrive worked only when Lens is in AutoFocus mode (MF does not permit to do manualFocus from computer). With gphoto2, if I keep AutoFocus mode active on lens, the camera try to focus object (even in capture preview).

I compare EXIF file between Gphoto2 and EOS Utility, and found these differences :

 Control Mode (EOS Ut.)          : Computer Remote Control
   vs
 Control Mode (Gphoto2)          : Camera Local Control

How to record USB data from EOS Utility to Camera (from MacOs) (I will send info)