Picture from video

[iho]

Hi,
 If I use for model building frames from 1k video pictured on 16Mp sensor... should I use for calibration focal length in pixel for original sensor (4608x3456) or adjusted focal length for down scaled image  (1920x1080)? Actual difference in focal length about 2 times (2464 against 1026)...

[Alexey Pasumansky]

Hello iho,

If you run the alignment for some project from the video frames, what adjusted values for the focal length in pix do you get? And how it compares to the initial values of the photos taken by the same camera?