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ortho-photos...

Discussion in 'Zenmuse H3-3D/H4-3D GoPro Gimbal' started by DeliriousGimbal, Nov 16, 2014.

  1. DeliriousGimbal

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    I would like to have a shot at bodging up an orthophoto mosaic. For this I really need the GoPro on the gimbal to be pointed directly down, otherwise of course I end up with oblique shots.
    I cannot seem to tilt the gimbal all the way perpendicular. Should I be able to do this? is there a designed-in adjustment for this, or will I have to do some tinkering?

    cheers
     
  2. IrishSights

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    Ortho is better done with a flat field rectilinear lens as the standard GoPro's lens is very fisheye which can cause difficulties in stitching at the very least it will not give a true otho image. There is a 5.4mm replacement lens that can be easily fitted into the GoPro Hero 3+ Black Edition. More difficult to fit to other GP models however.
     
  3. noiseboy72

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    To answer your question, you just need to ensure your control is calibrated for full movement and that you have not set any movement limits in the software.
     
  4. DeliriousGimbal

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    Thanks very much both. Yes I know my Hero 3 (white I think, it was second hand) is very fisheye as stock, but I can at least have a shot, and then go for rectilinear lenses if I like what I see....
    ok, I will have to get the quad back on the software to calibrate the gimbal. Thanks.