Hello dear forum users!
This is my first post, so please forgive any inadequacies
today I tried the 4.0 beta firmware on my Ursa Mini 4K.
The menu structure and the new way of operating the system I like very much, they did a great job there.
But to my surprise I suddenly discovered stuck bright pixels in my footage.
I have been using the Ursa Mini 4K for six weeks now and I never had any dead or stuck pixels.
Now, with the beta 4.0 firmware there are at least two constantly white / bright spots in my footage, especially if it comes to lowlight / dark surroundings. I was shocked because I couldn’t understand how that was possible.
Then I made a rollback to the 3.3 firmware - and the stuck pixels where gone in the next footage I shot.
I tested this several times now. With 4.0 firmware there are bright stuck pixels when shooting lowlight / dark surroundings, with 3.3 there are none. (ISO 400, RAW 3:1, 178 shutter, 25fps)
So I guess there has to be some kind of error-correcting or pixel-compensating algorithm in 4.0 that is not working properly.
Did anyone have similar experiences?
Thanks and best regards from Germany,
Hubertus
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Edit 8.9.2016
Ups! I discovered that the topic was discussed earlier in this thread by Willem Timmersma, Denny Smith and others. Sorry! At least I can confirm that the dead / stuck pixels will be gone after going back to 3.4.