Quote Originally Posted by Chris Livsey View Post

I wonder if you could, from your experience of lenses in a quantity most of us cannot even approach, please comment on the post above " Optically, sample variation from lens to lens is going to be a larger factor than any additional coatings, etc.".
I think I would agree with that statement. I did see variation in the images from lenses viewed through a collimator and once in a while I might see a lens that would take your breath away for it's sharpness and contrast. Of course what you see in a piece of test equipment and the way the lens performs in the field can be two different things but feedback from customers confirmed that these lenses that appeared so good in test did in fact also give great results. Most testing would be done with the lens wide open whereas in the field the majority of photographers would stop down, to see a lens' true performance check at different apertures.