Capturing imagery for a deep trench hole

PIX4Dcapture PIX4Dcapture Questions/Troubleshooting
1

Need help advice in capturing imagery for a deep trench hole. 

 

Specifically this trench https://www.google.ws/search?q=to+sua+trench&safe=off&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjG1c2ssprVAhVoxVQKHV9LAQMQ_AUICigB&biw=1920&bih=950

 

Use freehand or circular?

2

Yes!

3

You could try to combine images from both a circular and free flight. Note that water is impossible to correctly reconstruct, so in case it can reconstruct it, there will be noise on the water surface.