using android pix4dcapture in mission
same place(450m x 600m) , same option(front overlap 85% and side overlap 80%), flight speed in fast mode
i changed my flight altitude to 140,160,180m and taking picture
but have problems
180m take pictures approximately 340pics / 160m approximately 370pics / but 140m approximately 300pics
i calculate the numbers 140m have taking pictrues approximately 400 or more
in results change flight altitude (180m to 140m) flight paths are rising(10 to 14) but front overlaps are reduce(30 to 20)
why this happen?