Green spots either side of image.

AyeYo · Feb 4, 2017

Anyone else dealing with green tinted areas in either side of their stills and video? I'm getting tired of trying to fix it in post (and can't fix it in post on video). It's like a graduated filter has been applied to the middle of the photo that fades tint to green/yellow towards the left and right. This is in any shooting mode, so it's a sensor or processor problem. There was an initial review of the Mavic done that complained about this issue, but the tester was told by DJI that it was preproduction issue and would be fixed in the release model. It obviously isn't.

I originally blamed lense flares, but I've noticed it also happens shooting away from the sun and with no sun at all. I also just installed the PP Cinema filters which have not reduced it in the slightest.

Strafe1 · Feb 4, 2017

Can you show examples of NOT directly into the sun? On certain monochrome still shots, I get a slight center magenta tint, but not on video. I get nothing of what you're reporting.

AyeYo · Feb 4, 2017

Who cares if it is directly into the sun? My P4P shoots clean colors directly into full sun with no filter or coated glass at all. Even my cell phone can do it. Why can't the Mavic shoot accurate colors?

I might be able to dig up the shots of it happening away from the sun if you really want to see it.

AyeYo · Feb 4, 2017

Rather than try to fish through all my pictures which are currently on my out of commission NAS, here's a video I just made yesterday. The green/yellow/underexposed tint is visible in literally every shot to some extent. It is most prevalent in the left 1/5th of the screen. This is not an attempt to get views on my video.

Strafe1 · Feb 4, 2017

AyeYo said:
Rather than try to fish through all my pictures which are currently on my out of commission NAS, here's a video I just made yesterday. The green/yellow/underexposed tint is visible in literally every shot to some extent. It is most prevalent in the left 1/5th of the screen. This is not an attempt to get views on my video.

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****, that's some great video. I see it your video, couldn't in your posted pics. The snow and cloud scenes being the most prominent. This could be the sensor issue that is being discussed in other threads, where some people exhibit a "warm spot" on their recordings. It is a known issue that DJI recognizes but really can't fix as it relates to the proximity of the camera and sensor (something to that effect). Most can be color corrected in post, but tedious to have to do it. I am not sure if your case is related to, so I hope someone else can chime in with their experience. My defect shows as a slight magenta color in the upper middle of the frame. The posted pictures above threw me because, just as you thought. sun flare or atmospheric conditions during sunrise or sunset can show some very different colors.

AyeYo · Feb 5, 2017

Strafe1 said:
****, that's some great video. I see it your video, couldn't in your posted pics. The snow and cloud scenes being the most prominent. This could be the sensor issue that is being discussed in other threads, where some people exhibit a "warm spot" on their recordings. It is a known issue that DJI recognizes but really can't fix as it relates to the proximity of the camera and sensor (something to that effect). Most can be color corrected in post, but tedious to have to do it. I am not sure if your case is related to, so I hope someone else can chime in with their experience. My defect shows as a slight magenta color in the upper middle of the frame. The posted pictures above threw me because, just as you thought. sun flare or atmospheric conditions during sunrise or sunset can show some very different colors.

Good to know. I did come across the issues you described in other threads, but wasn't sure if mine was related seeing as how I have the opposite tint in the opposite areas. Someone on RCgroups was complaining of the exact same issue as me back when the Mavic was first released, but I wasn't able to track him down to see if he resolved it or not.

It's obviously worse over white images, and occasionally (third to the last scene I think, with the really blue sky) doesn't happen at all (or at least not noticably). I spent months blaming lense flares, because as you said it seems to be worst directly into the setting sun (and even more noticeable when you begin messing with those images in post), but after going through the footage in that video and seeing it in EVERY snow scene even WITH a coated, polarized filter on, it became obvious lense flares have nothing to do with it.

If there is a know manufacturing defect or oversight, I think we all deserve replacements. I know DJI is a company famous for "just deal with it" or "just work around it", but correcting this issue in post (when that's even possible) is a tremendous waste of my time, makes shots look like crap when I don't, and has me eyeing a backpack for my P4P, which would make the Mavic obsolete for me.

halley · Feb 5, 2017

I wrote this for someone else's very similar example, referring to the smaller green artifacts in your samples:

It's a sun flare inside the optics of the camera (not the bubble). The spot moves horizontally as you pan. The relationship with the brightest lights (like the sun) will always maintain this symmetry.

Cameras have had this kind of issue since the earliest cameras existed. Some cameras have better coatings or better baffles or better sensors than others, but it's pretty difficult to have the sun in view with NO artifacts.

As for the larger tinted areas you describe, it's likely just the weak color sampling that this sensor/compression uses.

AyeYo · Feb 5, 2017

I totally understand the artifacts and flares, as does anyone watching a video or looking at a picture - some people even like them. I'm referring to the entire left 1/5 and right 1/8 of the screen being tinted green/yellow and darker exposure. That's absolutely unacceptable on a $1000 drone as "just the way the camera is". My $70 Runcam doesn't even have that issue.