oliver_filippi

<p>Assuming both are in good shape and the lens is good, the major discriminator is the removable hood on the F to take a prism. Hence I would give the nod to the F.<br> Personally, I like my 2.8C with the Xenotar, which I think is a sharper lens (subjective opinion), than the Planar - even though the Zeiss name has more status.<br> Zeiss made some (relatively unsuccessful) 2.8 lenses for Rolleis prior to the Planar. Schneider gave them a lesson with the Xenotar, which took the old standby 3.5 Zeiss Tessar to the cleaners. I haven't confirmed this, but I think the Planar is essentially a copy of the Xenotar.</p>