Winner of a lens, great performance... I got it for free.
Singular exposure, ITL-200 making it 4.5x-ish, λ/4 waveplate.
No idea how to use that waveplate, I just let it sit on the slide and rotated it till I see colours appetising to my eyeballs.
I have the oly 180mm tube lens, it comes with microscope dovetail mounts, can't adapt it to my Z6 yet since adaptors are... I don't know where, somewhere for sure.
Corners aren't great because my setup is bad. I have the camera-tube setup taped to the microscope port, crude but it kind of works, optical axis is thrown off by a lot.
More info: https://flic.kr/p/2j3YMYx
Very nice.