Hello,
I recently got a 3.2x GF-Planachromat to use on my Jenaval. Can not test it on my microscope in the next weeks, so I tested it with a Raynox DCR-150 (focal length 208 mm). But was surprised to see a lot of chromatic aberrations. Also when I look through it I see a lot of them. Take a look at the photos. The first two are with the 3.2x and the second two are with the 6.3x. No other objectives from the CF250 that I have show this. Write back if any of you have similar observations or I'll have to look for another copy.
Thank you and stay safe!