I sent you privately the cameras and adapters I use (check that the adapters fit into the eyepieces of your microscope, there are adapters for 23.2, 30, or 30.5 mm). I assure you there is no latency; it’s ultra smooth. These are USB 3.0 cameras, but you also need to consider your hardware. I have a fairly powerful PC (NVIDIA 4060) and I use USB 3.2 ports for the cameras (not sure if that’s necessary, but it prevents bottlenecks). I’m not sure you need my setup to have such a smooth experience (<10ms), but I preferred not to take any risks and invested in a solid configuration from the start.
Can you send me them too? I haven’t bought eyepiece camera/adapters yet, so I’m interested in what you’ve gone with.