Ever since we moved here we've always had bats stop by at dusk for a few minutes during Spring and Summer. Yesterday evening I tried to capture the little fellows on video and made the following notes:
1. Using a 500m lens is a none starter, they are too fast to keep in the frame.
2. Using the tripod is useless because it stops at a certain angle and the bats often fly a few feet over my head.
3. Even set at 150mm, the big lens is too heavy when off the tripod, I'm sure the bats we laughing at me staggering about, can't hear ultrasonic giggling though so I couldn't be sure.
4. May induce motion sickness watching the playback.
I'll try again with the 200mm lens which is light as a feather and see if I can do a bit better.