Can anyone help me with my ELP camera autoexposure problems

[andrew...@gmail.com]

Can anyone help me with my ELP camera autoexposure problems?

"Freeze properties" only seems to work until the camera has a rapid change in brightness.

Then it seems to revert to auto exposure.

I am using the "white corner" hack to allow fiducial homing to work.

The other option I have is setting the camera settling time to 1500mS

[bert shivaan]

I can't say how, but I do know you need auto focus turned off. Is there a checkbox for it or anything?

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[andrew...@gmail.com]

The ELP camera does not have autofocus function and the check box for that is grey.

I changed the USB port the camera was on, and it may have improved from losing the fixed exposure every time "down light" is turned on to about once every three times.

Or that could just be the phase of the moon or how I am holding my tongue at the time.

I asked the hallucinating AI assistant about scripts that might help re-setting fixed exposure but I suspect it is as bad at writing code as I am.

[Mike Menci]

Can we see a picture of your ELP camera with lens ? 

Screen shot of camera adjustment in Open PnP ? 

Dne 19. mar. 2026 ob 11:43 je oseba andrew...@gmail.com <andrew...@gmail.com> zapisala:

The ELP camera does not have autofocus function and the check box for that is grey.

To view this discussion visit https://groups.google.com/d/msgid/openpnp/40601dfe-858a-4fa0-a9d5-bbe35a8200d2n%40googlegroups.com.

[andrew...@gmail.com]

Not the actual camera - but one of three I bought at the same time when I first started building my open pnp machine.

This one is my old "bottom" camera before I made the new coaxial lit one.

The text on the PCB says 

"720P HD USB100W03M"

and the other side you can't see says

"2014.3.17   .B"

[Mike Menci]

Show your settings in open PnP under image transform (from your screen shot next pages) 

Do a screen shot 

Poslano iz iPhon-a

Dne 19. mar. 2026 ob 13:04 je oseba andrew...@gmail.com <andrew...@gmail.com> zapisala:



Not the actual camera - but one of three I bought at the same time when I first started building my open pnp machine.

This one is my old "bottom" camera before I made the new coaxial lit one.

The text on the PCB says 

"720P HD USB100W03M"

and the other side you can't see says

"2014.3.17   .B"

<P1040157.jpg>

To view this discussion visit https://groups.google.com/d/msgid/openpnp/699bdd53-df00-4a08-bb6c-172f807c0469n%40googlegroups.com.

<camera_page.jpg>

<P1040157.jpg>