Starting a pissing match with respected forum members here, who I assure you, have an enormous amount of experience and expertise in this field is counterproductive if you're still interested in learning what will solve your problems.
I do understand that new people here are often given short, somewhat cold, or even rude answers. But to benefit the most, you have to get past that, and not let your ego lead you into arguing or trying to impress everyone with your expertise.
As I often thought (but didn't say) to my customers, when they tried to second guess my troubleshooting procedures and experience: " If you could fix this yourself, you wouldn't need to call me."
The same holds true here.
If you want the help and knowledge of what I assure you is a fantastic pool of world class security camera system experts who will spend an enormous amount of their personal time to help others with no compensation whatsoever, you have to swallow your pride and be a bit more humble and tolerant.
Believe me, it will be worth it.
This forum can turn people off. But if you take more time, and read through some of the threads, I think you will gain an appreciation and respect for the expertise these folks have to offer.
Arguing and telling people that they're wrong is not the way to gain their willingness to help you over the rough spots you encounter.
The DSLR versus security camera question is a natural thing to ask. But this is a deep subject, and you will need to understand a lot of rather esoteric subtleties to fully understand the reasons why a typical security camera doesn't give the image detail that a large still camera can.
And I get that your original goal was to be able to explain this to your boss, who probably understands this even less than you do.
But this is non trivial.
Suffice it to say that to do what he wants (cover a very wide angle of view while also capturing enough detail to do LPR and facial recognition at long distances) is not going to happen with a single reasonably-priced security camera.
So once that point is accepted, the question should be: "How can I achieve the goals I really need?"
Normally, people put in some wide-coverage cameras to give an overview of various areas, and then supplement those with tighter-view cameras that give identification-grade images over smaller critical areas.
We're normally trying to get the necessary data recorded while keeping the cost, network, and data storage requirements to a minimum.
This shit just isn't as advanced as one might wish. Especially for reasonable prices. It gets better and better. But it's not magic.
And, as the old saying in photography goes; "There ain't no free lunch."
Everything is a matter of tradeoffs and compromises. Always.
Concentrate on solving the problem. You're getting sidetracked by ego-driven arguing with the very people you're asking for help.
You will be overwhelmed by the help you will get here if you can get past that.
Welcome to the forum! Really.
