topic Re: Blue Splotches Showing Up In Video in EOS DSLR & Mirrorless Cameras

Blue Splotches Showing Up In Video

Crowbird — Mon, 13 Mar 2017 15:49:53 GMT

So I noticed this week that I'm getting blue splotches (and a lot of them) showing up in my footage, more specifically outside and in the brown colors (trees, fields, rocks, etc.) I'm shooting on a Rebel t5i. Here is an example. This video has it the worst and it even shows up some in the water. Any help would be appreciated. Thanks!

Re: Blue Splotches Showing Up In Video

Waddizzle — Mon, 13 Mar 2017 15:59:14 GMT

I don't see anything unusual. What video resolution are you using? Remember, video frames will not have the detail of a still photo. BTW, your posted image seems a little out of focus.

Re: Blue Splotches Showing Up In Video

Crowbird — Mon, 13 Mar 2017 16:03:38 GMT

If you zoom in on the peninsula on the top left of the image you can see what I'm talking about. It's there on the image I posted, I just checked.

Re: Blue Splotches Showing Up In Video

kvbarkley — Mon, 13 Mar 2017 16:14:11 GMT

Why don't you zoom in. I don't feel like playing Where's Waldo. What is the resolution of the video? Could it be color fringing?

Re: Blue Splotches Showing Up In Video

Crowbird — Mon, 13 Mar 2017 16:20:43 GMT

I didn't zoom in because it's on the entire image not just the one spot. It could be color fringing. 1920x1080. And I'm not here to play a Where's Waldo either, just get answers.

Re: Blue Splotches Showing Up In Video

ScottyP — Mon, 13 Mar 2017 16:29:13 GMT

I see it on my phone. It's everywhere. Looks like color noise.

Re: Blue Splotches Showing Up In Video

Crowbird — Mon, 13 Mar 2017 16:30:48 GMT

Is that an issue that can be fixed by settings or is it a bigger issue?

Re: Blue Splotches Showing Up In Video

Waddizzle — Mon, 13 Mar 2017 16:42:15 GMT

@Crowbird wrote:
I didn't zoom in because it's on the entire image not just the one spot. It could be color fringing. 1920x1080. And I'm not here to play a Where's Waldo either, just get answers.

I think you're being unreasonable. Why don't you crop the photo, so that everyone can be talking about the same thing? I don't see anything wrong with the photo. If anything, you're looking at out of focus rocks, at a 2 MP resolution.

Re: Blue Splotches Showing Up In Video

Crowbird — Mon, 13 Mar 2017 16:47:44 GMT

I just had someone in this thread say that they see what I'm talking about and offered a suggestion. I don't know what to tell you. I'm not cropping it in because at that point we will just be looking at pixelated rocks. If this is all you have to contribute please quit replying. I'm not here to argue, I'm here to get answers from people who know more than I do.

Re: Blue Splotches Showing Up In Video

Waddizzle — Mon, 13 Mar 2017 16:49:50 GMT

@Crowbird wrote:
I just had someone in this thread say that they see what I'm talking about and offered a suggestion. I don't know what to tell you. I'm not cropping it in because at that point we will just be looking at pixelated rocks. If this is all you have to contribute please quit replying. I'm not here to argue, I'm here to get answers from people who know more than I do.

Okay, but I will leave you with one parting shot. That person is telling you the same thing that I am. Your camera ain't broken.

Re: Blue Splotches Showing Up In Video

Crowbird — Mon, 13 Mar 2017 16:51:20 GMT

Then that's great news. If that's what you were trying to tell me, then why were you focusing on me cropping in the image? I'm here for a solution no matter who gives it to me.

Re: Blue Splotches Showing Up In Video

ScottyP — Mon, 13 Mar 2017 17:27:55 GMT

Wish I knew more about video, but when I zoom in I see blue/green and red splotches. It isn't limited to a fringe along hard edges like chromatic aberration (purple & green fringing) but that could nevertheless be part of the issue.

It really looks more to me like color noise artifacts.

The small phone screen isn't helping me here.

What ISO were you using?

Re: Blue Splotches Showing Up In Video

Crowbird — Mon, 13 Mar 2017 17:39:33 GMT

I believe I was using 400 while filming this shot.

Re: Blue Splotches Showing Up In Video

TTMartin — Mon, 13 Mar 2017 18:04:16 GMT

@Crowbird wrote:
So I noticed this week that I'm getting blue splotches (and a lot of them) showing up in my footage, more specifically outside and in the brown colors (trees, fields, rocks, etc.) I'm shooting on a Rebel t5i. Here is an example. This video has it the worst and it even shows up some in the water. Any help would be appreciated. Thanks!

What where you cameras settings what ISO, Aperture, and shutter speed?

Re: Blue Splotches Showing Up In Video

Crowbird — Mon, 13 Mar 2017 18:40:37 GMT

ISO: 400
Aperture: 3.5
Shutter Speed: I'm not entirely sure. Possibly anywhere from 200-600

Re: Blue Splotches Showing Up In Video

TTMartin — Mon, 13 Mar 2017 19:31:28 GMT

@Crowbird wrote:
ISO: 400
Aperture: 3.5
Shutter Speed: I'm not entirely sure. Possibly anywhere from 200-600

At ISO 400 most likely it is not noise, but, chromatic aberration.

What lens are you using?

Re: Blue Splotches Showing Up In Video

Crowbird — Mon, 13 Mar 2017 19:38:00 GMT

It's a stock lens that came with the camera. Canon EF-S 18-55mm.

Re: Blue Splotches Showing Up In Video

TTMartin — Mon, 13 Mar 2017 20:34:12 GMT

@Crowbird wrote:
It's a stock lens that came with the camera. Canon EF-S 18-55mm.

Has the lens been dropped?

BTW, as a rule of thumb, you want the denominator of your shutter speed to be approximately double the number of frames per second that you are recording. In other words, if you are recording at 30 frames per second, you want your shutter speed to be 1/60th of a second.

Re: Blue Splotches Showing Up In Video

Crowbird — Mon, 13 Mar 2017 20:39:41 GMT

No the lens has always been handled with care and placed in a bag after every use. Had it for 2 1/2 years.

And thanks! That's a good tip I wasn't aware of.