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Pixel size and focal lenght
3922 6 2018-6-27
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NotebO0k
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Portugal
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Hi

I am doing a PhD using the Phantom 3 Standard for surveying. I would need to know at sensor pixel size (not ground pixel size) and focal lenght of the camera (real focal length and not equivalent).

Thanks in advance
João
2018-6-27
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DJI Wanda
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Hello there. Thank you for bringing this query to us. We'll forward this concern to our engineers to check and provide an accurate information to you. Your patience will be much appreciated.
2018-6-27
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NotebO0k
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Portugal
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DJI Wanda Posted at 2018-6-27 02:41
Hello there. Thank you for bringing this query to us. We'll forward this concern to our engineers to check and provide an accurate information to you. Your patience will be much appreciated.

Thanks, appreciated
2018-6-27
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DJI Wanda
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You're welcome. Thank you for your understanding.
2018-6-27
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Owen Morris
New
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all my images show a focal length of 3.61mm
2018-7-2
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charlesetischer
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Hong Kong
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sensor pixel size:1.334(H)um x 1.334(V)um, focal length of camera: 3.6mm.
2018-12-3
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DroneBird1
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New Zealand
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charlesetischer Posted at 2018-12-3 19:13
sensor pixel size:1.334(H)um x 1.334(V)um, focal length of camera: 3.6mm.

Bit of an old follow-up, but may I ask how you got to these values? My estimation of the pixel size (based off the 6.3 x 4.7mm Phantom 3 SE sensor size)  is around 1.55um.



Edit: I just realized this was probably a reply from one of the engineers, so likely the best information I'll find.
In that case, I'll just say that I was basing my estimations on the effective pixel count for Phantom 3 Standard / SE (12 MP) and the most reputable sensor size quote I could find (6.3 x 4.7 mm), as I could not find the total pixel count for Ph 3 Standard (FC300C) or Phantom 3 SE.

This was not the case for Phantom 3 Advanced/Professional (FC300X, FC300S), where both effective and actual pixel counts (12.4 MP and 12.76MP) are found on the drone spec pages, and another post quotes the sensor size to be  6.16 x 4.62 mm. Both the Standard/SE and Advanced/Professional drones have the same  94° fov and 20mm equivalent f2.8 fixed lens (3.6mm), so this has been confusing me a bit when trying to estimate the pixel size for the Standard drone.

Any advice on my assumptions would be appreciated
2023-3-5
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