Originally posted by Heebie Do you see a difference with it "wide open" (I'm assuming you mean no plate inserted) and with the f2.9 plate inserted?
I haven't tested it, but I'm wondering if light will leak into there, bounce around, and maybe muck things up a bit.
(I really should give it a try)
There is no light leaking more than with a plate. The plate hole is in front of the all lenses.
But wide open, the lens is very soft. I'd say, nicely soft. Someone else would say, terribly or uselessly soft. A matter of taste.
But I think it's perfect for dreamy soft portraits. If you like it and know how to use it.
I suggest using a live view in focusing.