Eric,
You're right. It does read as a bit catty. Apologies. No offence was intended, I can assure you.
Back on topic......
I used to use Olympus cameras (still have them, but never use them) and I forgot that I had a Zuiko f3.5 50mm macro. I also have an adapter allowing me to use my Zuiko lenses on my Mk3.
Tried both it and the Canon macro this morning and, while optically there is nothing between them, the Canon has some colour fringing that requires correction, whereas the Zuiko has none.
Now have someone looking for one of the Zeiss 60mm makro planar Ts.
D.