Actually some of the cheap cameras have short wide detection zones. This lets them get away with slower trigger times. I find they actually work better than the high end cameras for setting high and angling downward. You end up reducing the detection zone much more on a fast trigger time camera that has a long narrow detection zone than on the cheaper cams.
I have converted some of my small food plots to what I call "wildlife openings". I started them with a perennial clover base. I then planted soft and hard mast trees (persimmons, chestnuts , crabs, etc). I don't do any maintenance on my trees. Plant, protect, and they are on their own. Over time, you get the normal progression of weeds in the clover. Eventually, I just let everything go and the field grows up. Just as woody growth is getting almost too big for my bushhog to handle, I go bushhog it. I then let it go for years until woody plants get almost too big for the bushhog and repeat. Weeds provide a lot of native foods, plus you have the mast. There is very infrequent access, just the bushhogging every few years. I try to stagger these so only a couple are bushhogged in any given year.
The mast trees are planted far enough apart that there will never be a canopy as long as I bushhog every few years. That is why I refer to them as a "wildlife opening". In the early establishment years there was significant human intrusion, but eventually there is very little.
Thanks,
Jack