We are considering adding some PTZ cameras that are full POE for locations where getting ethernet is already available and installing lengthy video cables is problematic. I just wanted to know if there are any major downsides to do this, more so from a system performance perspective.

Current Cameras: Sony SRG-300H via HDMI
Additional Cameras being considered: Sony SRG-X120

Does the extra step of decoding the video input have any undesirable effect on vMix performance (delay, CPU increase) or is it largely transparent if you have enough hardware encoders available in your GPU?

Is an NDI camera preferable over an h.264 camera?

My biggest camera constraint beyond the cable aspect mentioned above is ensuring they support Visca-over-IP such that we can use it with our existing Sony RM-IP10 IP Camera Controller.

H.264 would be preferable over NDI from a system resources perspective because the H.264 can be decoded by the GPU whereas NDI is CPU.

From a delay perspective, it sounds like NDI is preferable over h.264 streams. Any idea how much different there is in delay from NDI, H.264 and uncompressed?

Do I have that correct?