Recently I videoed a project for a local land regeneration group. They weren’t interested in a ‘cinematic’ look—details of the various trees, bushes and shrubs had to be as sharp as possible. So I didn’t use an ND filter. Most of the video is fine for their purpose, but a couple of shots where I was slowly moving in a shallow orbit are jittery. Is that because I didn’t use an ND filter? Or something else? Weather permitting, I can get those shots again. I’m using a Mavic Air 2 in Tripod mode at 25fps with a very fast card.