11-03-2018 12:10 PM
So my C300mk2 are giving me purple lines in backlight situations. Especially while filming from inside and out, but also when things are illuminated in a room. There has been previous threads but no public answers to what to do or solutions to this.
Because of that....a new thread!
Is it to be expected? In loads of other places online people say they have been told by canon reps to just do their exposure correct, but all shots in the world shot with the C300 can't reasonable be low key shots exposed for a bright background right?
I have made a video on vimeo with just a few examples:
The footage is ungraded and example 1 is the exact reason for why I did get the C300mk2. To be able to use it's full dynamic range and get coverage both on the sky and inside the car. To my knowledge my exposure is not "wrong" from a tech point of view. But then again...the purple stuff kind of ruins the party.
Example 2: As bad as it gets. I did blur the text bc NDA, but the "lines" follows the lines of text.
Example 3: This should not be a difficult situation for any camera.
Example 4: Test shoot changing the F-stop up and down from 1.8 to about 5.6.
All shoots are done in C-log2,
1080p 4:2:2 10Bit
Should I accept this quality from canon? Or are my camera way to bad?
Solved! Go to Solution.
11-04-2018 06:44 PM
We are sorry to hear that this issue has caused purple lines in back lit situations. If the issue persists, you may wish to set up service to this unit at the Canon Factory.
You may fill out an online repair request form at the following link to setup your repair using our online service.
11-04-2018 06:56 PM
Thank you Tim.
To me this answer is fully acceptable and I read out from it (combined with other answers I have seen around the interwebs) that some minor CMOS-smear could be concidered acceptable because of the way CMOS works, but when appearing with the amount in my example no 2 it would be a service matter and may potentially be resolved by repair.
Thanks for clearing things up.
Besides the now ever so present purple bars I am super happy with the camera