Aperture Error

January 16, 2022 03:13
6 comments

I had a list of camera commands which seemed pretty straight forward, but was getting an aperture error which would stop the mission. My list is:

gimbal: -90, cameral mode: photo, white balance:sunny, iso: 100, exposure mode: aperture priority, camera aperture: f5.6, Wait: 03 seconds, focus mode: auto, wait: 03 sec, cameral focus mode: manual, camera exposure mode: manual

Basically want to get the cameral settings all set at the mapping altitude, then shift everything to manual so it keeps the camera parameters and does not impact GSD.

Thoughts?

Comments

6 comments

Barry Houldsworth Dronelink Expert
- January 16, 2022 03:20
Which drone?

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Mike Liggett
- January 16, 2022 04:09
Phantom 4 pro V2

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Jim McAndrew Dronelink Staff
- January 16, 2022 12:59
Please share the mission plan.

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Mike Liggett
- January 16, 2022 16:49
https://app.dronelink.com/michael-liggett/green-hammer/plan/RbdVDq700tDrkyPjdfOa/Pt3JIrzKhqIPgKQJ7AZo

The commands are on the achieved component of the map approach.

This is also the mission which I kept getting the GPS error mentioned in a post last night.

Thanks!

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Jim McAndrew Dronelink Staff
- January 17, 2022 13:14
Error -1005 from the DJI SDK means invalid parameter. Are you able to choose this aperture value manually from the menus?

Separate note, right before you set the exposure mode to aperture priority, you set the ISO to 100. Won't aperture priority immediately override the ISO? Do you really want to set the exposure mode to manual so you can set both aperture and ISO?

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Barry Houldsworth Dronelink Expert
- January 17, 2022 15:20
Jim McAndrew Mike Liggett

5.6 is a valid option for aperture on the P4P V2.

In theory, setting the ISO to 100, and setting the aperture to 5.6 should force the camera to try to compensate by changing the shutter speed.

If, however, the shutter speed could not compensate enough for that, that might cause an error. On the P4P it has a mechanical shutter with a maximum speed of 1/2000 s.

I could see a couple of tests here that might solve that issue.

1. Change the ISO to auto and see if the error still occurs.

2. If it goes away, change the ISO to 100 and switch to using an electronic shutter instead of a mechanical one. That allows for speeds up to 1/8000 s. If that works you then have to decide if you want an electronic shutter.

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