I'm thinking of getting the EE-S focussing screen for my Canon 5D.
Now I've read numerous times that it's difficult to manual focus with F4 lenses, but what about F2.8?
I have the new 100mm F2.8 IS macro and I'm scared that focusing it will become more difficult as the current screen is optimised for F2.8. Or will I be able to manual focus more easily with the EE-S?
Thanks for the comments