I thought I'd share my widefield setup based on a shot I took of
Rho Ophuichi
This is a Canon 100mm f/2.8L IS connected to an Astromechanics adapter for autofocus (still don't know how to use it, but plan to test it this week).
I love how the guider combo is longer than the imaging rig
Longer focal length too (242mm vs 100mm), so maybe guiding isn't required.