Over the Thanksgiving Holiday I purchased this lens for 2 reasons 1. I bought a Nikon to Canon lens adapter 1 year ago and never used it 2. I needed a telephoto lens, since my upgrade to the Canon 6d made 2 of my lens unusable.
I got the lens off eBay for $125 and for the few tests I've done its perfect. Very sharp. The only thing I'm not so impressed with is the F/4 but I bought it for outside shooting so I don't much mind it.
Leave questions below if you have any.