vertical distance

Hi all, I was shooting my Mavic about 45 degrees away from the sun and noticed these vertical & horizontal lines after viewing on my PC. Not sure if it was caused by the sun direction or the D-Log profile - 0, 0, 0 ? If someone with some previous knowledge could help that would be a...

How do you estimate the height of objects, like buildings, power line poles, and signs? You can use trig calculations based on the angle from eye level to the top of the object, but that requires knowing the horizontal distance from where you are standing to the base of the object. It might not...