Sigma 400mm F/5.6 APO for $175..

[nikon19804]

Hey Mark. Me again. Just wanted to let you know that I recently bought not one, but two of these Sigma 400mm APO lenses on Ebay. The first was listed in "good" condition and and didn't sell for very much. While waiting for it to arrive, another in "Like Brand New", "hardly ever used" condition was listed, complete with leather case, original box, "directions and warranty". I won that one, too. Long story short, each lens had an interior element completely hazed-over with fungus, the "Like New" lens even worse than the other. Couldn't convince the seller on the second that the problem actually existed, so I had to contact Ebay Buyer Protection. Just got word last night that I may return the lens for a refund. Man, is it a shame. You should see this lens. On the outside it looks like it just came off the production line. Anyway, "Caveat Emptor" when buying one of these lenses. You sure can't judge THIS book by its cover.

 

[Derrel]

"a stop or two up from f/5.6"

A stop "up" from f/5.6 is f/4...two stops "up" would be f/2.8.

When you stop a lens down, you go to smaller apertures...."well stopped-down" is f/8,f/11,etc...