Megapixel analog sounds like a contradiction in terms. 'Analog' by definition, or at least in common use, is constrained by 60+ year old NTSC / PAL specifications and cannot be 'megapixel.'
However, now manufacturers are starting to incorporate megapixel sensors into analog cameras. While the cameras must output NTSC / PAL analog, the imagers are capturing megapixel.
Many argue that this is nonsense, that there can be no image improvements and that it is simply manipulative marketing.
They are wrong.
We bought a 900TVL camera and tested it alongside our analog resolution setup (including 450TVL, 600TVL, 700TVL, 960H, etc.) matched up against true 1.3MP and 2MP IP cameras.
900TVL cameras delivered a clear improvement in image quality compared to all of the other analog cameras.
Questions we examine inside, with image comparisons:
- How much better quality was 900TVL compared to 960H, 700TVL and 600TVL cameras?
- What was the impact in bandwidth consumption?
- How did quality vary between night and day?
- How did 900TVL match up against HD / MP IP cameras?
- How did performance vary between moderate (~20') and wide (~40') Field of Views?
- What should you use for specific applications?