06-24-2017 10:47 AM - edited 06-24-2017 10:48 AM
Anyone seen this issue before? Just started on my 70D the other day, very sporadic but incredibly annoying. I thought it was just flashes but it effects all the black in the shot as shown on this raw file I uploaded to Vimeo. The flashing happens on the screen when recording and is on the file which woudl tend to rule out purely a screen problem. Cant seem to find too many answers online so far.
Any help would be much appreciated
06-24-2017 11:38 AM
How many photographers were present using a flash? It looks to me like you're seeing the flash of other photographers.
06-24-2017 11:45 AM
Thanks for your reply.
There was only one photographer and he wasnt using flash, or anywhere near me at the time I dont think. The pink/red fleks are constant throughout the clip tho so I dont think it would be somwthing like a flash setting off the pink flashing. On files where there is no pink flashing the black tones and shadows are clear.
06-24-2017 12:00 PM
The guy in the video has a large flash on his camera. There is a filter on it, and really appears to fire, and it when it does, everyone flashes pink. Some cell phones try to "flash", too.
Is that the only footage where you have had this problem?
06-24-2017 12:08 PM
Haha right enough, there's that photgrapher, what an idiot, sorry, my mistake. However, its happening a llot more than just on that one shot and it happens multiple times in each shot, one is so bad it is almost nothing but pink lines and freezes the image. Im convinced its not caused by the flash as Ive been in situations where there has been lots of flashes going off and its not caused this effect, and the flash woudlnt explain the constant interference in the black areas throughout the clip.
Here's another clip which is the worst its been but bears all the same hallmarks.....
06-24-2017 12:09 PM
After watching it several times, I am not sure it is a flash either, only because the entire scene is affected, not just the foreground subjects. You can see how the flash is lit up in this frame grab.
What WB balance setting were you using? Make sure the lens is securely mounted. It's almost as if there is a bad connection between the camera and the lens.
06-24-2017 12:13 PM - edited 06-24-2017 12:19 PM
Ew. Pink streaks. Ugly. What happens when you take stills? It looks like a failing image sensor to me.
The camera should shut itself down if the image sensor were overheating. But, it should also flash warning icons when it is close to shutting down, though.
06-24-2017 12:13 PM
Thats a good call, I'll check the lens mount and see if that resolves the problem, as I said, its a sporadic problem so might not show up straight away but I'll keep an eye on it, thanks for the suggestion!
06-24-2017 12:16 PM
Yeah its nasty isnt it! I was worried about the potential for it being something to do with the image sensor. Stills are fine with it, Ive had no problem at all with them..so far, fingers crossed! Only when shooting video and only the last 2 shoots
06-24-2017 12:19 PM
You'll want to get that to one of our repair facilities. My *guess* (not guarantee) is that your sensor might be failing. It could be any other electronic problem, our cameras are complex beasties!
If you're here in the USA, you can set it up online at the Canon USA site HERE.
Outside of the USA, you'll want to reach out to Canon in your country/region and find out the procedure for repairs there. You'll find contact information for Canon in your area by clicking HERE. From there, select your country or region and go from there!