[Rover]

I was proposing because it did happen before, for Canon 70-300 full frame review, sample images were kindly provided by Jerry Kooyman. You can check the review and verify yourselves.
http://www.photozone.de/canon_eos_ff/558...ff?start=1

I was referring to the Tokina 10-17 review which has the same premise.

And let's not forget the old Contax N gear where both the lenses and the sample images were provided by Markus before he joined PZ.  (actually, for the longest time I wanted to ask Markus how he had come to own these rare beasts, and what happened to them afterwards when he switched to Nikon  ).