Here's a mockup of that, with the resolution of the 29MP assuming a 90° FoV and second base being 127' from home plate (+30 feet for the camear):
At 2nd base, you will get ~20ppf, which will give a general view of activity but not much for faces or fine details. I am not sure how far you need to go or how much detail, but that should give you a sense.
Btw, I believe the Avigilon party line these days is that the new H4 16MP is better all around than the older 29MP camera. We mentioned this here: Manufacturer Sales Pitches Revealed.
Obviously, ask them, test yourself...
Finally, it's also worth considering a few 5MP or even new 4K cameras, that might provide an overall lower cost solution.
In my opinion, the 16MP units by Avigilon are better than the 29MP units. I have done 6 or 8 different test shots with the units and I do favor the 16MP.
According to the Avigilon Calculator you would have 15PPF at 157' with a 16MP unit. That is based on 30Ft height, 320' scene width, 90 degree FOV and a 12mm focal length. The 29MP unser the same constraints takes it to 21PPF.
This seems to be overkill if your intentions are to capture the activities of a baseball team playing and practicing on the diamond. Do you also want to capture outfield activities?
Attached is a detailed chart for a 29MP / with a 28mm lens, providing a 55 degree HFOV.
The chart shows this camera mounted at 34' with a 6' tall target located 165' from the camera.
Everything is linear, so replacing that lens to get to 80 HFOV, the pixel densities will decrease by the ratio of 80/55
the 16 will give you better fps but I would field test it for your application - just call your local avigilon rep or send me a note and i will get you in touch with the right person -- I have only done indoor ice rinks, soccer fields and basketball courts and the latest craze here paddle tennis we used 2/3/5MP but those were easier to cover and less area
I agree, the activiities on a ball diamond likely require a higher FPS to capture fast moving activities Regardless of your image detail requirements.
Below is a set of pixel on target scaled to a 250 distance, across the range of HFOV available from both Varial Focal and fixed lenses. Cut and paste these atop a google earth view, properly scaled and you can estimate the image results. Good Luck.