I have been using a Nikon D780 and really like it. It has been great but I am trying out a Z6ii and after a week's worth of shooting I would say the D780 is far better in low light. I was disappointed to find this, especially because a couple of reviews said that the Z was a bit better in low light. Of course this could possibly be due to operator error and not yet fully understanding the intricacies of the entire system, but I doubt it.

In low light the camera searches and searches for focus and eventually it may lock on. Sometimes I get frustrated and use the manual focus ring on the lens instead of listening to and waiting for the Z to focus. It also seems that in autoISO the camera wants to jump to a higher value than the D780 would. The Z has taken some great action shots of birds and a barrel racing but not enough for me to form a solid opinion yet. In a couple of instances the camera completely lost focus, but possibly because my finger did not keep the BB fully compressed, so I will be checking that also. I'm not quick to blame the camera and want to be sure the problems are not my fault.

I'll be doing some side by side testing of the two cameras and will post any conclusions I have to this thread. The D780 is and has been a great camera. I highly recommend it but the Z does have a few features that are good for my situation, but if the 780 proves to be better or equivalent I have no qualms about not switching to the Z.

Since you asked for opinions I think it's appropriate for me to post a couple of action shots taken by the Z which demonstrate its very good AF in action situations. Notice it can capture all four hoofs off the ground. It was a cloudy and overcast day so not terribly low light but still not bright. All the shots I've taken with the Z have been with a Tamron 28-300. I cannot carry around multiple lenses where I go so I use this lens almost exclusively.

The download shows the detail and is probably a little brighter. I'll keep you posted on results.

I have never shot in a studio. I am setting up a new office and will want to take serial photos of patients’ facial contours to compare before and after results of surgical interventions. I do some cosmetics but mainly reconstruction surgeries fixing traumatic injuries or other’s less desirable outcomes. The pictures are taken by medical assistants so simplicity and reproducibility are keys. With the advent of LED studio lights, I wanted to mount LED studio lights that can be turned on with a switch, paint a wall with background paint and place foot positions on the floor so that the patient can easily turn to the appropriate angles. Currently, we use a portable ring light with a fabric background in an exam room.

My questions: what lights would you use and at what angle from the center would you place them? Would you place any lighting on the ceiling? Or, would you just continue with a ring light on a moveable stand?