poor quality blurry 48mp shot from mavic air 2

sar104 · Jul 5, 2020

Here is the same crop from the aircraft JPEG:

Still not bad, but a good illustration of how post-processing the DNG can get you additional detail.

Tatankha · Jul 5, 2020

Ok thanks to everyone.! I appreciate it!!

Ars3nal3432 · Jul 5, 2020

Tatankha,

Tatankha said:
Ok thanks to everyone.! I appreciate it!!

The raw photos from the MA2 are definitely not the most crisp or sharp.

Tatankha · Jul 5, 2020

Yes, I was expecting to much from a 12MB pixels tiny sensor... but I will get use to it with some work in Lightroom!

Dave Maine · Jul 6, 2020

It is not clear what software takes advantage of the 48 mp images taken in bright light. Special algorithms are required to unlock it. The default is a 12 mp image.

sar104 · Jul 6, 2020

Dave Maine said:
It is not clear what software takes advantage of the 48 mp images taken in bright light. Special algorithms are required to unlock it. The default is a 12 mp image.

I don't understand your question. The images posted above, both DNG and JPEG, were 48 MP. It doesn't require any special software.

Gttaylor · Jul 6, 2020

Tatankha said:
Hello Everyone
I tested the camera of my new Mavic air 2 during my first fly and back home I realized that the 48MB pictures I took were blurry not up to the quality I saw elsewhere or even close to my Iphone. Lost of details , blurry details to a point that I suspected some vibration of some sort. The videos, though are very nice. I tried again today by just taking my drone outside, putting it on a table without flying suspecting a problem from the gimbal. Same result. the 48MB is bad. . Also the DNG file is 92MP. why? Did somebody experienced the same problem?
Thank you for any help! Sorry I can't attach even a zip file of the picture. What's the size limit?
Richard

Did you take the cover off the gimbal?

sar104 · Jul 6, 2020

Gttaylor said:
Did you take the cover off the gimbal?

Did you look at the photos?

Tatankha · Jul 6, 2020

?yes and even the stickers! I m just A bit disappointed by the picture quality which is a 12mp sensor and a “48MB”. I should have done a bit more researches before buying mavic air 2 vs mavic air pro with the hasselblad camera. For my first drone it’s still amazing. Lesson learned.

sar104 · Jul 6, 2020

Tatankha said:
?yes and even the stickers! I m just A bit disappointed by the picture quality which is a 12mp sensor and a “48MB”. I should have done a bit more researches before buying mavic air 2 vs mavic air pro with the hasselblad camera. For my first drone it’s still amazing. Lesson learned.

It's not in the same class as the M2P but it's still really pretty good, especially if you are willing to do a little post-processing, and it is a fraction of the cost.

Dave Maine · Jul 6, 2020

Not true. The 48 mp image is divided into groups. The finest grouping is 48 mp. The larger grouping made up of 4 pixels from the smaller group which are combined to make low image lighting pixels. Most software reads only these larger groups. A special de-mosaicing software is required to access and individually use the these photosites. This Sony quad site sensor is used in the latest iPhones, where the Apple software correctly decodes the photo sites depending on the lighting when the image was recorded. I cannot cite any software other than Apple that correctly decodes images from this sensor.

sar104 · Jul 6, 2020

Dave Maine said:
Not true. The 48 mp image is divided into groups. The finest grouping is 48 mp. The larger grouping made up of 4 pixels from the smaller group which are combined to make low image lighting pixels. Most software reads only these larger groups. A special de-mosaicing software is required to access and individually use the these photosites. This Sony quad site sensor is used in the latest iPhones, where the Apple software correctly decodes the photo sites depending on the lighting when the image was recorded. I cannot cite any software other than Apple that correctly decodes images from this sensor.

I have no idea what you are talking about. How the Mavic extracted them from the quad Bayer data is a different debate, but the files above are 48 MP image files - 8000 x 6000 pixels.

SkyeHigh · Jul 6, 2020

sar104 said:
I have no idea what you are talking about. How the Mavic extracted them from the quad Bayer data is a different debate, but the files above are 48 MP image files - 8000 x 6000 pixels.

I wonder how many people bought the Air2 thinking it had a 48MP sensor?

DJI marketing at their best.

sar104 · Jul 6, 2020

SkyeHigh said:
I wonder how many people bought the Air2 thinking it had a 48MP sensor?

DJI marketing at their best.

It's the same as the marketing of that sensor in the mobile phone market and, to be fair, it does have the requisite number of photosites - they are just not arranged to give a full 48 MP resolution and require additional interpolation between colors in order to get there.

Dave Maine · Jul 6, 2020

You miss the point. I know that they report being 48 mp. The issue is that the deBayer it software does not create images reflecting the full 48 mp image data. What is shown is a 48 mp image with the data from a 12 mp image encoded in it.

sar104 · Jul 6, 2020

Dave Maine said:
You miss the point. I know that they report being 48 mp. The issue is that the deBayer it software does not create images reflecting the full 48 mp image data. What is shown is a 48 mp image with the data from a 12 mp image encoded in it.

I'm not missing the point - the images from the SD card are 48 MP. They don't "report as 48 MP" - they are 8000 x 6000 pixels. They don't need any special software to read them as 48 MP. The 48 MP have already been created by the aircraft.

Deleted member 114292 · Jul 6, 2020

Dave Maine said:
Not true. The 48 mp image is divided into groups. The finest grouping is 48 mp. The larger grouping made up of 4 pixels from the smaller group which are combined to make low image lighting pixels. Most software reads only these larger groups. A special de-mosaicing software is required to access and individually use the these photosites. This Sony quad site sensor is used in the latest iPhones, where the Apple software correctly decodes the photo sites depending on the lighting when the image was recorded. I cannot cite any software other than Apple that correctly decodes images from this sensor.

Not sure what iPhone you’re talking about the iPhone 11 Pro Max has a 12 megapixel sensor.