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Mavic 2 Pro & Phantom 4 Pro different GSD

Hi
I compared this dji’s drons and I don’t understand one thing. In Pix4Dcapture when I set parameter e.g. 100 altitude.

Mavic 2 Pro -> GSD - 2,34 cm/px
Phantom 4 Pro -> GSD - 2,73 cm/px

both have the same
matrix size: 1’’ CMOS
number of pix: 20 mln

So what is different ?

Isn’t it the difference in focal length?

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It’s true. the focal length is different. Mavic 2 pro: 10.5 mm, Phantom 4 pro:8.6 mm. The formula for GSD is given here: https://support.pix4d.com/hc/en-us/articles/202557469-Step-1-Before-Starting-a-Project-1-Designing-the-Image-Acquisition-Plan-b-Computing-the-Flight-Height-for-a-given-GSD, you could also use our GSD calculator: https://support.pix4d.com/hc/en-us/articles/202560249-TOOLS-GSD-calculator

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