If increasing the TVL doesn't improve detail capture what does ? The answer is how much you zoom in on the subject. Most people think they want a wide angle camera to give the widest coverage. This is the single biggest mistake you can make and yet remarkably most of the cameras for sale in places like Maplins or other national retailers are wide angle.
As you move away from a wide angle camera the pixels spread apart rapidly and you only fill a very small section of the screen. As a guide at D1 resolution someone needs to fill 70% of the screen hight to be identified, 50% to be recognised.
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