Hardware issue on the 4.6K

I updated my URSA mini 4.6k EF camera to the 4.8 firmware however the picture now has a major magenta cast in parts of the image ware it was not before. It also now has heavy banding of noise at all ISO levels which also was not there before. I tried doing a censor calibration and it was still there. I mounted three different lenses on it all being different focal lengths and found it in the picture no matter what. I also connected a video assist to the SDI output and found the issue there as well.

After all of this I rolled the camera back to the 4.4 firmware but the camera now has this issue in firmware 4.4 as well.

At this stage the camera is unusable like this, I tried rolling the firmware back to 3.3 this morning and the issue is still there so it looks like the censor is the problem. I can't confirm if this could happen to other cameras but I can confirm that this problem was not there before I updated it to the latest firmware 4.8 on my camera.

I'm waiting on a response from Blackmagic at the moment. Hopefully they can correct this ASAP.

Regards
Chardon Waite

Did you try a different focal length or lens? Looks like the Italian flag effect is back with a vengeance.

I tried a Tamron 70-200 2.8 a Tamron 17-50 2.8 and a Sigma 50mm 1.4 and it showed up on all of them. The frame grab you can see was shot with the Sigma 50mm 1.4 at 4.6k raw converted so you can see it.

Chardon, I don't have that camera because of this very issue when I first got one. I have followed the issues reported with the Ursa Mini 4.6K, and IIRC BM did improve the issue with a firmware update. I seem to recall that it was caused by some sort of residue on the sensor. This may not be an issue with the UMP and they may have removed it. In any case, it looks like a very bad case and I think you are gonna have to return it to BM for repair. Do it soon, I think the UM4.6K's days are numbered.

Thanks for the feedback Gene it's a real bugger because I was really looking forward to the this update with the lower latency over SDI. I've only had a problem when filming with the wrong ND when I first got the camera like a lot of other's, other than that it's been great. I hope they can just replace the censor in it so I can get back shooting with it.

[Tim Schumann]

That banding does not look like the issue that Gene is talking about. I'll reach out to the support guys.

Thank you Tim any help would be appreciated

I performed this update and did not experience this issue. Just the stills button issue.

I doubt very much this is a firmware issue. It looks like hardware. I'm sure BMD support will help.

JB

Mike you must have the URSA mini Pro. John I think your right about it being a hardware issue but it definitely only appeared after the 4.8 update. I filmed all kinds of events including 2 eight hour live streams and never had a problem with the pictures with the 4.4 firmware.

Chardon, have you tried doing a camera reset to default?
Maybe there went something wrong during the update and the camera got some internal settings messed up.
It is worth a try.

It is in the menu under setup, page 4

Just tried your suggestion Robert but no luck

Sorry to hear that. Looks like it has been just an unlucky coincidence between the firmware update and your sensor hardware getting bad. Hope BMD can help you soon and fast.
Good luck!

I'm happy to report that Blackmagic have replaced my camera with a new one. I don't have an answer from them about the issue, the camera they sent to me has firmware 4.4 on it so I'll live with this until I see other users on firmware 4.8 or higher reporting this to be safe to use.

I can't complain about Blackmagic's service, this all happened at the worst time of year and they still took the time to talk to me and sort it out.

Chardon, I've been using firmware 4.8 on my UM46k since it was released and have had no problems whatsoever. I'd assume it is pretty save to use and a very good update.

[Tim Schumann]

Chardon the issue you experienced is hardware specific and it is totally safe to update your new unit to 4.8

Chardon, could you please change the title? It's misleading. I'm sure your experience was sheer coincidence.