Let me demonstrate with my EmpireTech cameras (commonly referred to here as Andy cams by
@EMPIRETECANDY) to show you the difference between using default/auto that I think the Hookup was running at (or if not default, then the wrong parameters) versus dialing in the cameras to your field of view and lighting.
So here is a screenshot of the Hookup running forcing the camera in color and some DIGITAL zoom for him running at 25 feet:
Aside from the obvious blurring due to digital zoom, he has too much motion blur and he is almost see thru as a result of too much gain.
My 5442 3.6mm (4MP) overview camera has roughly the same wide field of view as his with the street at around 50 feet, so someone across the street would be in the 80ish foot range.
To try to make a comparable comparison, I wanted to find a runner as a walker wouldn't be a fair comparison. I was able to find an 11pm jogger, but unfortunately they were not at 25 feet, but were on the other side of the street at about 80 feet, so if anything my performance should be worse.
So of course I am not expecting to IDENTIFY at 80 feet with a DIGITAL zoom, but my image looks better at 80 feet with a lot less light than his at 25 feet. There is blur in mine obviously due to the digital zoom, but it is not motion blur or see thru the person because of too much gain; whereas his blur is from both motion and digital zoom along with too much gain:
Now let's compare that to an OPTICAL zoom of the Z12E (2MP) where it is OPTICALLY zoomed in to be able to get an IDENTIFY at that distance:
This my friends is why you do not chase MP and instead purchase a camera on the correct MP/sensor ratio and focal length for the area to cover!
You need to identify the areas you want to cover and pick a camera designed to cover that distance. In some instances, it may be a 2MP or 4MP that is the right camera. DO NOT CHASE MP!!!
You need to get the correct camera for the area trying to be covered. A wide angle 2.8mm to IDENTIFY someone 40 feet away is the wrong camera regardless of how good the camera is. A 2.8mm camera to IDENTIFY someone within 10 feet is a good choice OR it is an overview camera to see something happened but not be able to identify who.
One camera cannot be the be all, see all. Each one is selected for covering a specific area. Most of us here have different brands and types, from fixed cams, to varifocals, to PTZs, each one selected for it's primary purpose and to utilize the strength of that particular camera.
So you will need to identify the distance the camera would be from the activities you want to
IDENTIFY on and purchase the correct camera for that distance as an
optical zoom.
If you want to see things far away, you need optical zoom, digital zoom only works in the movies and TV (especially at night)...And the optical zoom is done real time - for a varifocal it is a set it and forget it. You cannot go to recorded video and optically zoom in later, at that point it is digital zoom, and the sensors on these cameras are so small which is why digital zoom doesn't work very well after the fact.