Arial Foto
lvl.2
United States
Offline
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What are the true pixel specs of the physical sensor? I have seen several Web sites state that the sensor is 5,544 x 3,694 pixels (~20.48 megapixels, at just over 3:2 aspect). DJI’s official specs do not mention sensor pixels but state their still photo specs (for 3:2) as 5,472 x 3,648 (~19.96 megapixels, at exactly 3:2 aspect). I haven’t verified, but I assume that for 16:9 stills the image is 5,472 x 3,078.
I ask because I am putting some detailed specs into a camera modeling and calculation app, and trying to define as accurate a model of FOV and exposure area as possible. If the sensor at 13.2mm x 8.8mm (ø15.9mm) has 5,544x3,694 pixels as some sites have stated, but the full 3:2 image spec is 5,472x3,648, then either, (1) the actual exposure area is cropped and not using the full sensor area (more like 97–98% of it); or, (2) some sort of digital reduction is taking place (pixel binning, etc). I would hope it is #1, for reasons of image clarity and perhaps reduction of edge distortion or vignetting. And it is also possible that the other sites are incorrect and got the 5,544x3,694 from a bad source.
Anyone?
Thanks!
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