Whats is the best way to prevent or correct dead pixels?

[hjfilmspeed]

Hi. I was searching the forum like crazy for the best tips on this. As far as I know with the normal raw video mode on the 5d3, the best way to prevent dead or hot pixels is to avoid higher ISO and longer exposure times like low fps override (1.5 fps). I also read the temp of the sensor plays a factor in this too. I find that with some of my footage, even at ISO 1600 @23.976 fps I have to blur out at least 5 to 6 dead or hot pixels. I'm on the dec 22 build I think on the 5d3. I usually use batchelor and ACR and Resolve Lite 10.2. I might not have the most current raw2dng.exe though. I use fps override all the time and shutter fine tuning. The only fix I have is to spot correct in post. Any other tips? Sometimes I miss 1 or 2 then I'm stuck rendering again. If this is redundant I am sorry and you can trash the topic. I guess I am looking for any new findings.

[RenatoPhoto]

This is a great tutorial how to fix hot pixels.  It works!

[RenatoPhoto]

Also here: http://www.magiclantern.fm/forum/index.php?topic=9700.0

[hjfilmspeed]

Awesome thank you sooooo much!

[togg]

I just made a layer with resolve that blur them out, it's not perfect I know, but since there's not a plugin available for my workflow yet I'll stay with this ^^

[hjfilmspeed]

yeah thats what i have been doing. but they change a lot. Ive done the remap but that doesnt always work.

[togg]

yeah thats what i have been doing. but they change a lot. Ive done the remap but that doesnt always work.

Yep. In some kinds of shots it's not a good solution. The remap doesn't work for me neither, maybe one day I'll bring it to assistance and they will be able to map them out for real.

[hjfilmspeed]

i think the only way to prevent on 5d3 is to avoid iso above 1600 and fps override below 3fps. I had a shot the other nite that was at 1600 and 1.5 fps and there was like 50 plus dead pix. it was crazzy. could this be dust. anyway the question is how can i now remove them the best way. i started this topic so i guess we should carrie this over there.

http://www.magiclantern.fm/forum/index.php?topic=9835.0

To me shooting in low light and at 1.5fps is soooo fun so i would really like to fix this or find a good processing method. I love acr to get my footage to log and de-speckle but it is just painfully slow.

Amazing find by  p48l0. This is probably the best solution for my workflow http://www.playtool.com/pages/pixelpatcher/pixelpatcher.html and in the two times that I used the plugin it worked quite well.

[Pashi]

Got the same issue only today. About month ago I shooted video a lot and see no hot dots Today I've start shooting and got about ten dead pixels. Remaping by hand cleaning have no effect 

[wojtrek]

Hi, my first post here, but I thought I'd contribute.

I had the same problem, huge amounts of hot pixels all around the frame, I knew they were not there all the time.
Above 1250 ISO they would show, and even at 6400 would stay at the same level.
I tried the manual cleaning, never knew how this could help with such a large amount of hotness

here's how they looked:

and here's how it looks 2 minutes later.

The first bad image is from the 5D2_Alpha_One build.
The second is a recent nightly build (december 2013 I guess).
It took me a few hours to finally connect the dots (pun intended), but they're gone for good I hope.

cheers

[avasarin]

I don't think that this dead pixels are something physical, that you can remove by cleaning the sensor.
I'm shooting ML RAW and video mode on my 5Dmk2 and this pixels appear just in RAW mode. A simple way to eliminate them is by using Simple wire removal in AE - if you work with AE (BTW the max amount of dead pixels I have is 3-4, so it's still a "human" solution, of course if you have an image full of hot pixels it's not possible to eliminate them by hand).

[a1ex]

Can you check if this helps?

http://www.magiclantern.fm/forum/index.php?topic=9700.new#new