#IMG_1540.CR2

all images at 2.5 m
IMG_1541.CR2 : Karma max power
IMG_1542.CR2 : PowerLed max power
IMG_1543.CR2 : Karma max power
IMG_1544.CR2 : PowerLed max power

IMG_1547.CR2 : 1m ruler for calibration, 2.5 m : result 1590 px / 1000 mm

giving:

500px 7.17 Deg
1000px 14.12 Deg
1500px 43.33 Deg