Stewie Griffin
lvl.3
Canada
Offline
|
To all the people who report having a perfect Mavic, I wonder if you have looked very carefully at your pics. I come from a photography background, so I'm a little more picky, but after reading about the issues with the red/pink centre, and seeing it in so many other samples, I do think most Mavics might have this issue. DJI Ken has provided a PDF explaining the problem and saying they are working on a fix. I am on my second Mavic since the first one had a blurry right side, and although I didn't notice it on the first one before I sent it back, after going over my images, I do see it now.
Here are some samples to illustrate. The first is a standard bridge. We can assume the pavement is uniform from left to right, but in the centre, you can see the tiniest bit of yellowing. This is a JPG straight from camera, only resized.
If I now open up the DNG in photoshop and use the pavement for white balance that isn't in the centre, the issue is more pronounced.
When you are trying to dial in proper white balance, it makes things difficult. I also wonder what part of the sensor the Mavic uses for the AWB because clearly this will affect things, depending on what part of the image its sampling.
Now I know that Ken said don't use white walls for testing, but I see no reason why. It may be that the Mavic is designed to work best during daylight hours, but most sensors do not have an issue with a white wall, even very cheap sensors. Here is a JPEG straight from camera, only resized. In the upper corner you see me holding a white balance tool that is neutral gray. Was moving it around different parts of the image to do testing. The flawed centre is obvious. The bottom left corner is dark, but its a shadow from something in the way. The lighting is actually daylight coming in through the window on the left.
Lastly, while doing tests at night under artificial light, I came across this image. Its difficult to recreate actually, and its clearly blurry cause I'm holding the Mavic and the shutter speed isn't fast enough, but wow... where did that come from? Its also an original JPEG, only resized.
I do believe many/most Mavics have this problem. I don't see how this sensor/lens is any smaller than on a phone camera, and most of those work very well, but that is the explanation. Hopefully they fix it cause they are working on it.
So to everyone who says they have a perfect Mavic, look for this issue and feel free to post samples. |
|