topic Re: Canon 70D Pink flashing problem in EOS DSLR & Mirrorless Cameras

Canon 70D Pink flashing problem

Timberr — Sat, 24 Jun 2017 14:48:40 GMT

Hi folks

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.

https://vimeo.com/222956386

Any help would be much appreciated

Cheers

Tim

Re: Canon 70D Pink flashing problem

Waddizzle — Sat, 24 Jun 2017 15:38:46 GMT

How many photographers were present using a flash? It looks to me like you're seeing the flash of other photographers.

Re: Canon 70D Pink flashing problem

Timberr — Sat, 24 Jun 2017 15:45:16 GMT

Hi Waddizzie

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.

Cheers

Tim

Re: Canon 70D Pink flashing problem

Waddizzle — Sat, 24 Jun 2017 16:00:23 GMT

Timberr,

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?

Re: Canon 70D Pink flashing problem

Timberr — Sat, 24 Jun 2017 16:08:01 GMT

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.....

https://vimeo.com/222962170

Cheers

Tim

Re: Canon 70D Pink flashing problem

Waddizzle — Sat, 24 Jun 2017 16:09:40 GMT

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.

Re: Canon 70D Pink flashing problem

Waddizzle — Sat, 24 Jun 2017 16:19:22 GMT

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.

Re: Canon 70D Pink flashing problem

Timberr — Sat, 24 Jun 2017 16:13:47 GMT

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! 🙂

Re: Canon 70D Pink flashing problem

Timberr — Sat, 24 Jun 2017 16:16:11 GMT

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

Re: Canon 70D Pink flashing problem

Stephen — Sat, 24 Jun 2017 16:19:39 GMT

Hi Tim,

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!

Re: Canon 70D Pink flashing problem

Waddizzle — Sat, 24 Jun 2017 16:21:38 GMT

@Timberr wrote:
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

Check your manual to see what the overheating icons look like. The icons should also flash when shutdown is imminent.

Good luck, just the same.

Re: Canon 70D Pink flashing problem

Stephen — Sat, 24 Jun 2017 16:44:41 GMT

Good point! A hot sensor can cause problems with the image quality, but you should see the "Internal Temperature" warning icons. I've attached a screenshot from the manual page 287 (you can download the whole manual HERE.)

I realized those are hard to see. Here are the actual icons:

Re: Canon 70D Pink flashing problem

TTMartin — Sat, 24 Jun 2017 18:04:55 GMT

@Timberr wrote:
Hi folks

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.

https://vimeo.com/222956386

Any help would be much appreciated

Cheers

Tim

Looks to me like it is the flash from other cameras and cell phones causing the Auto White Balance to 'jump' to a different white balance. If you had manually set your camera's white balance to 'Daylight' I doubt you would see the pink.

Re: Canon 70D Pink flashing problem

Waddizzle — Sat, 24 Jun 2017 21:34:30 GMT

That's what I had initially thought, too. The second video clip, seems to dispense with the idea that flashes are unbalancing the Auto WB setting. The pink is not uniform across the entire image. It appears as pink streaks and blotches.

Re: Canon 70D Pink flashing problem

TTMartin — Sat, 24 Jun 2017 21:38:03 GMT

@Waddizzle wrote:
That's what I had initially thought, too. The second video clip, seems to dispense with the idea that flashes are unbalancing the Auto WB setting. The pink is not uniform across the entire image. It appears as pink streaks and blotches.

I missed the second video. Yes the streaking seems to rule out white balance.

Re: Canon 70D Pink flashing problem

mehmetgorgin — Mon, 31 Aug 2020 23:15:14 GMT

Same problem with My 70d too. Have you solve the problem. Plase help.