grberg wrote:
I shoot mostly grandkids sports with a d500 and an 18-300 3.5-5.6 Nikon lens. With good sunlight I can get some pretty sharp action pics (usually at f8 or so). However, in late afternoon light and under stadium lights using auto iso and f5.6 I get some acceptable but somewhat noisy pics. I’m considering investing in a 70-200 2.8 lens (probably the Tamron G2), but would like to know of anyone’s experience shooting action shots at f2.8 or f4. I’ve gotten pretty good at hitting my focus points using f5.6 to f8, but I wonder if I can at f2.8 or f4. Any advice would be appreciated.
I shoot mostly grandkids sports with a d500 and an... (
show quote)
I use Canon gear, but it should be no different with Nikon stuff...
When I'm shooting out in good light, I often use several variable aperture, lighter, smaller zooms like a 28-135mm f/3.5-5.6 and 100-400mm f/4.5-5.6. More often than not, I'll set those to apertures f/5.6, f/6.3 f/7.1, or f/8. This gives some additional "latitude" for minor focus errors.
28-135mm at f/7.1...
100-400mm at f/6.3...
But in lower light conditions, early or late in the day or covered/shaded arenas, or "under the lights", I don't use those lenses. I switch to f/4, f/2.8 or faster lenses. Using DSLRs with an optical viewfinder, these help with a brighter viewfinder, too. I'll still stop down to f/4 when possible, for a bit more depth of field and "forgiveness" with focus accuracy, but can use them wide open if need be.
It depends upon the distance to the subject, too. Up close, focus accuracy becomes more critical and depth of field may be problematic. But at some distance, it may be no problem to use f/2.8 or larger. (I'll also sometimes use larger aperture lenses even in bright light, to more strongly blur down and "obliterate" backgrounds.)
For example, 300mm f/2.8 lens almost wide open at f/3.5, but at some distance...
Versus much closer with the the same 300mm stopped down to f/5.6...
In the first shot above, from greater distance, the entire horse and rider are in sharp focus. But in the second shot, much closer, even a stopping down to a smaller aperture wasn't enough to keep both in focus (horse's face is sharp, but the rider's is not).
Much of the time I use a single AF point... that helps insure accurate focus. It's more work for me, keeping that AF point right where I want camera and lens to focus, but it makes for a high percentage of accurately focused shots... leaves less up to chance the way that using multiple AF points does. I also use back button focusing, which puts me in more full control of when the AF system runs (and when it doesn't).