image quality phantom 4 pro

balzli · Jan 14, 2017

In my first tests of a snowy landscape I found a strong vignetting in the pictures. The edges go into the color cyan.

gr8pics · Jan 14, 2017

Have you tried do some tests indoor on a plain white background, to see if the same happens?

balzli · Jan 14, 2017

Not until now.

KevMo Photog · Jan 14, 2017

Very interesting balzil! Are you shooting in 3:2 ratio or 4:3?

D-Fresh · Jan 14, 2017

balzli said:
In my first tests of a snowy landscape I found a strong vignetting in the pictures. The edges go into the color cyan.View attachment 73333 View attachment 73333 View attachment 73333 View attachment 73334 View attachment 73333

See if you have on auto white balance and switch to daylight, or correct in photoshop in the raw with the temperature slider.

KevMo Photog · Jan 14, 2017

D-Fresh said:
See if you have on auto white balance and switch to daylight, or correct in photoshop in the raw with the temperature slider.

Not sure this would help D-Fresh as it is an inconsistency across the image. A global correct in camera or in Photoshop is just gonna change the color temp of the whole image. I use a custom white balance all the time and adjust in Phototshop before I process the Raw file. But this problem does not look bad over whole image. It's just on sides and corners. You could fix it really easy with a brush in Photoshop but who wants to spend time fixing so many if its doing it all the time.

azgeek · Jan 14, 2017

Could also be a function of the aperture. What f-stop were you using for these?

ScrooemPhantom · Jan 14, 2017

are you using the DJI GO 4 app and if so which color setting are you using or are you using the auto color?
purchased the P4Pro at the AMA Expo and looking into the ND filters that will fit the P4Pro even at the expo which looked more geared to fixed winged aircraft had a limited selection of vendors offering filters

KevMo Photog · Jan 14, 2017

ScrooemPhantom said:
are you using the DJI GO 4 app and if so which color setting are you using or are you using the auto color?
purchased the P4Pro at the AMA Expo and looking into the ND filters that will fit the P4Pro even at the expo which looked more geared to fixed winged aircraft had a limited selection of vendors offering filters

Polar Pro is sending their filters out for the P4P in a week or so supposedly. Got a Cinema Shutter Collection coming.

balzli · Jan 15, 2017

KevMo Photog said:
Very interesting balzil! Are you shooting in 3:2 ratio or 4:3?

Ratio 3:2

balzli · Jan 15, 2017

azgeek said:
Could also be a function of the aperture. What f-stop were you using for these?

It was f 11

Bill S · Jan 15, 2017

I am having trouble with my P4P+ as well. The integrated monitor has far less camera controls available. Bad weather has slowed my investigation but I don't think that I am getting 720, let alone 4K. More tests tomorrow and I will post.

balzli · Jan 15, 2017

ScrooemPhantom said:
are you using the DJI GO 4 app and if so which color setting are you using or are you using the auto color?
purchased the P4Pro at the AMA Expo and looking into the ND filters that will fit the P4Pro even at the expo which looked more geared to fixed winged aircraft had a limited selection of vendors offering filters

Yes I´v used the dji go 4 app and auto white.

balzli · Jan 15, 2017

KevMo Photog said:
Not sure this would help D-Fresh as it is an inconsistency across the image. A global correct in camera or in Photoshop is just gonna change the color temp of the whole image. I use a custom white balance all the time and adjust in Phototshop before I process the Raw file. But this problem does not look bad over whole image. It's just on sides and corners. You could fix it really easy with a brush in Photoshop but who wants to spend time fixing so many if its doing it all the time.

No bad advice with the brush. But I am somewhat disappointed with the lens.

KevMo Photog · Jan 15, 2017

balzli said:
No bad advice with the brush. But I am somewhat disappointed with the lens.

I'm wondering if it's a sensor problem instead of a lens issue? But this is def not right. This is an extreme case to show the problem since everything is white from edge to edge. I will be looking close for this issue in my next few flights.

azgeek · Jan 15, 2017

balzli said:
It was f 11

Try shooting at 5.6 - 6.3 and see if the vignetting becomes less pronounced. If that doesn't make things better then it might not be a lens issue.

Eddyfisher · Jan 15, 2017

I noticed the same effect on my first video, which is all I've had a chance to shoot as I am returning the P4P for battery compartment issue. I'll post example later.

Roamer105 · Jan 15, 2017

gr8pics said:
Have you tried do some tests indoor on a plain white background, to see if the same happens?

Hmm I think these pictures do demonstrate the vignetting problem exceptionally well. There is no reason to believe the snow color just happens to naturally change towards the edges of the picture.

ScrooemPhantom · Jan 15, 2017

as far as the filters go for the P4Pro i picked up the BOWER drone essentials kit with the UV, CPL, ND4, ND8, lens cover and lens hood.....all of which do not fit as the Pro has a rubber insulation ring holding on the outer 1:2 24 mm lens. the kit says DJI Phantom 4, 3 A and 3 P
so for sure it does not fit the DJI Phantom 4 Pro

Doctorcobani · Jan 15, 2017

balzli said:
It was f 11

balzli said:
I´v used the dji go 4 app and auto white.

With these settings you are a victim of diffraction, chromatic aberration, color changes, and white balance not accurate.

Try f/4 to f/8 (f/5.6 or 6.3 it's the sweet spot) and without AWB. Put the WB in kelvin manually.

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