I've been trying to figure out what's the best way to accurately plan my flights for photogrammetry use. I'm having a bit of a difficult time calculating the necessary distances between photos at different altitudes, for achieving 70% / 40% overlap.
I have found a few simple formulas for doing this, but they all use the "format size" as data input; and basically, I don't know what it goes here for a Canon sx260 hs. I know the sensor size (6.2mm x 4.6mm), but I guess this is not what I'm supposed to use in the formula, as this would result in taking photos every couple meters, even flying at 100m or 200m.
Any help would be appreciated.