A SD8A840-HNF-PA 4K 40X PTZ Demo

Thanks all. I have ordered PFT1200. All SD5A425XA-HNR are working fine with Unifi POE+ switch.
 
4/3 sensor is technically difficult.
Affects focus speed.
I bought a 4K 40X PTZ white light.
I only seen 4/3 sensor products on HUAWEI X6981-Z20
But 14~280mm F1.8~5.0 is not my favorite.
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I have customer test this with the new SD8A series, SD8A840 can do better job than the old one. the 8A820 even can't beat down the SD6AL433XA-HNR Laser PTZ now.
And what is the advantage? If we consider the image quality of 8MP vs 4MP, I think that 8MP is better and the detail is higher. If we consider everything else, it is clear that 33x zoom is much better than 20x. By what criteria do you compare these models?
P.S. I have never worked with cameras with laser illumination. Can you show a comparison with the usual IR illumination?