tramsey wrote:
I have a d850, shoots a dismal 9 fps. But I've never been able to over run it. I don't understand why fps of 30 is so important.
I wonder how many on the forum use all 30 frames?
It would very, very unusual to use all 30 frames from a burst.
But high frame rates can be helpful when shooting active subjects.... sports, wildlife, whatever.
A high frame rate can help assure you get that "perfect pose" when everyone's eyes are open, no one looks awkward and no one's tongue is hanging out!
It is almost unheard of to get multiple shots in a row where the pose and all are appealing... But it does occasionally happen using "slow" cameras (8 or 10 fps).
I honestly don't think I'd use 30 fps very often (if at all). For one, I'd have concerns about rolling shutter effects, since the only way to achieve that frame rate is with the electronic shutter... and the only way to be certain of avoiding rolling shutter issues is to shoot stationary or slow moving subjects, neither of which call for 30 fps shooting!
With a lot of experience doing equestrian photography I have few problems timing my shots for the peak moment. However it's difficult to get a fast-moving horse's legs well positioned. Some parts of their gate look awkward when frozen in an image. There are also those fractions of a second when the rider's face is obscured by a mane, or there's something weird in the background.
Even so I try to keep burst of shots to a minimum... usually just 3 or 4 frames at most. I simply don't enjoy sitting at a computer for days on end editing images!
I was chatting with someone who had just been out for the first time with their new R7 and in four hours took 3000 shots! His daughter took even more with hers! And they were mostly using the 15 fps mechanical shutter!
Another reason I limit bursts is wear and tear on the camera. I don't know what the R7 is rated to be able to do. It's said to be similar in weather sealing to the 90D, which is rated for 120,000 shutter actuations. In comparison, my 7D Mark IIs are rated to do 200,000 clicks. I haven't heard a durability claim from Canon regarding the R7, but would guess it's somewhere in that range. As it stands, I often shoot between 1500 and 3000 images at a day's event. Probably average around 2000. Based on that, I should expect to get about 100 outings with a 7DII or about 60 with a 90D. But since those cameras are both around 10 fps and the mechanical shutter frame rate of the R7 is 15 fps, I would expect even with care that I might end up taking 2500 or more shots per event with the new camera. If it's durability is the same as 90D, that would mean a camera might be expected to be good for 48 events. Or, if the R7 has 7DII level of durability, I might expect to shoot around 80 events. I typically shoot 20 to 25 events a year, so the R7 might end up being a "2 to 3 year camera", where I expected 3 to 4 years with a 7DII (except I share the work between two of them and would do the same with R7, so double that life expectancy).
So for most action photography I'd use the R7's mechanical shutter... which still gets me 15 fps (50% faster than my current cameras). I probably would mostly use the electronic shutter of an R7 for silent or very quiet shooting situations. It also offers an extra-fast 1/16000 shutter speed, that the mechanical shutter can't do. The fps can be dialed down slower, too. Another advantage to the e-shutter is fewer moving parts to wear out. While it doesn't eliminate all wear and tear or possibilities of eventual breakdowns, it offers some potential for a longer life.