We photographers have a tendency to be conservative and I for sure can be counted as one of them. We are watching on a yearly basis how mirrorless is taking over. At first professionals refused the idea of using these cameras but eventually mirrorless took over and today a large group of professionals are using mirrorless cameras. Remember when cameras came with an exposure meter built in? I was one of the many photographers that did not accept the idea. At the time I was using a Sekonic C&S hand held exposure meter. Eventually I bought a camera with the meter built in and after learning how to use it I became a happy camper. Today it is almost impossible to find a 35 mm camera without a built in exposure meter.

Technology has changed how we photograph. Mirrorless cameras are convenient and offer more advanced technologies than those built in dSLR bodies. I am always amazed at the powerful technologies built into the Olympus cameras and I can say they help me a lot in many cases, night photography and using Live Composite is one of them. It is very nice to watch the exposure in the rear monitor as the camera will expose. Modern firmwares can correct vignettes and wide angle distortions, something we could not do in the past. AF has been a godsend, especially for action and wildlife photographers. After Minolta introduced AF, I believe in the early 80's, I was not comfortable with it till I learned how to use it. AF has saved more than one of my images.

I am not familiar with the Z9 but all reports I have read have been very enthusiastic about the new camera.