Originally posted by aurele That's a lot of fringing !
And that is from the center of the image, the periphery is a complete mess. I'll have to find a sample from the Pentax 800mm f/6.7 ED for comparison.
I recall who owned this lens, my uncle who took a lot of
propaganda *ahem* photos for the Australian defense force. He used the 800mm f/4 to photograph fast moving aircraft, my mother used to borrow it from him when she wanted to get publicity photographs at car rally events. My mother is 5'3" the visual effect of her carrying this lens, which is almost as tall as she is along with a tripod sturdy enough to handle it would have been
hysterical though I'm pretty sure she hired a pair of assistants.
IMO this lens is completely overpriced. I'd say in absolute mint condition, including the lens case including the dedicated 1.4x rear converter, a total value of $8000 is being
generous.