John Sims wrote in post #13554527
Assuming you aren't looking at full HD in the final production I would up it to 50 or 60 fps as this will give greater latitude if you want to slow the action down.
Quick to get to the point! The thing about the subject of wildlife in specific, is that capture speed does not equal playback speed, as animals of different sizes move at different "speeds" in relation to us and need to be viewed at a specific rate to seem natural in motion.
Shoot birds or other similar sized animals at anything less than 50fps and a 1/100th shutter, and you may expect to end up with little blurry things zipping around. Shooting 60p and playing back at 24p basically gives you a 2.5x slowdown should you need it. If it's bigger than you, it probably doesn't need slow-down.
You don't get a lot of choice with the 7D it's either 24fps at 1080 or 60fps at 720, you don't get the option of 60fps at 1080 unfortunately. I've just shot some at 24fps and am editing it at the moment I expect it will go on YouTube in due course.
I shot this at 24fps but not a lot of high speed action, balanced on a monopod a bit impromptu.
1080p30 is enough for most things if you need just a bit of slow-down. Also, the video is an excellent showcase of why one needs to use a tripod with a fluid head, if it can be helped.
Thanks for the replies so far. Good point about the higher frame rates. Shooting with 7d and 100-400, I try to be at 1/125s anyway for optimal results (handheld). This is especially true when shooting from the kayak.
Shooting with a 100-400 handheld on a kayak? I personally wouldn't use anything longer than 70mm or so if shooting without a tripod, in fact, you may want to bring a wide-angle along for the kayak thing. Well, in any case, don't forget that every frame rate has an acceptable limit for shutter speed before it starts looking too choppy. So for example, using 1/125th at 24fps will start making the video looking very jittery, but for 60p it's alright.