That vignetting issue is really a let down. I do expect more from this lens. Specially for the price. And to think that they have made the filter to 82mm
The lens is a honker. That's fine and I want one as long as it doesn't fly south for the winter. I don't see a problem in Erik's photo. When it's a problem it can be corrected. I hate to think how big that lens would need to be to reduce vignette more and in all likely hood some other aberration would increase.
Dave Hartman
More and more I'm seeing that lens designers are doing a high wire act,
but the show must go on. This really isn't new but I guess I'm thinking about it more these days.