Active EF mount no longer working

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Chardon Waite

  • Posts: 17
  • Joined: Sun Feb 16, 2014 3:10 am

Active EF mount no longer working

PostFri May 27, 2022 12:29 am

I have the URSA Mini 4.6k with EF Mount. The trouble I’m having is my lenses are no longer active on this mount. I have cleaned the terminal’s on the lens and camera mount but they won’t register with the camera. I have tried un-mounting the lens and re-mounting and the lens shows an f stop for a short moment but won’t hold it. I have noticed this on my 2.5k EF Mount camera too. I’ve had the URSA since new and I’ve treated it like a baby.

Lenses I’m talking about below. And keep in mind these lenses worked for a number of years on this camera.
Sigma 18-35 f1.8 EF Mount
Canon 24-70 f2.8 L
Tamron 70-200 f2.8 EF Mount

Has anyone got any suggestions ?

The camera is unusable like this.
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Chardon Waite

  • Posts: 17
  • Joined: Sun Feb 16, 2014 3:10 am

Re: Active EF mount no longer working

PostFri May 27, 2022 5:51 am

Update.

I reset the camera and I now have the lens mount working again.

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