« on: April 15, 2014, 07:16:12 PM »
I'm shooting with a 7d 500mm mk I with 1.4tc and I have no problems with sharpness. There should be hardly any noticeable degradation wide open if properly calibrated and using correct long lens technique.
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
Yessss. A constant aperture f4 that will take a 1.4x nicely and a 2x in a pinch. 80 vs 100 I don't care it's just a label and the difference is not that important