We have been doing some photogrammetry testing for the last couple of weeks. All cameras were hanging in gimbals with wibration damping. I am still not convinced that the compact digital camera on a smaller multirotor is not the best solution;
An octo with Tarot 5D2 and Nikon D800 - big, expensive, knee-shaking in the air, expensive batteries - way too long to recharge. Gimbal working overtime to stabilise the weight. Very slow to take the shot, even with focus fixed and in manual. Delay between firing infrared and photo being taken. Often missed shots. Shots often a bit blurry.
Large quad with Nikon 1 - also delay between APM firing up infra red and shot being taken. Shots less blurry.
Arduphantom with Canon S110 running CHDK intervalometer - very sharp. Never missed a shot.
So the question is; if you can buy a compact digital, a compact DSLR or a full DSLR what is best for photogrammetry? Is the massive cost, effort and stress of a full size DSLR rig worth the 8 extra megapixels?
Really interested in your opinions.
We're using Pix4U for the photogrammetry.