Vivitar 100-400mm f/4.5-6.7 Series 1 AF
(From Vivitar lens literature) This lens covers focal lengths from 100mm to 400mm telephoto. Series 1 superior aspherical optics improve contrast and resolution from edge to edge throughout the zoom range. Precision auto focus performance at longer focal lengths. Smooth one-touch zoom control. Multicoated for reduced flare and increased light transmission.
Vivitar 100-400mm f/4.5-6.7 Series 1 AF User Reviews
7 out of 10 points and recommended by Hoosierdaddy (4 reviews)Long focal length range for a low priceVery SOFT at 400mm wide-open, but good 2 stops down (except corners). Slow autofocus.
I bought this to shoot airshows and kids' outdoor sports (soccer, baseball, football), originally on a film body but the last few years on a DX digital body. For those uses it is great, considering I paid so little for it. However the autofocus is way too slow for moving subjects, even in daylight, so I focus it manually nearly all the time. A "10"...for the money.reviewed January 11th, 2011 (purchased for $190)
6 out of 10 points and recommended by Niel (7 reviews)Full frame, CHEAP, lightweight.None at the price.
Bought very cheaply secondhand as the AF wasn't working on the owners body. Turns out it was too dark for the AF to function reliably, works fine on my D50 though. Cosina badged version, same lens.reviewed February 20th, 2007 (purchased for $30)
Not the best lens construction wise, the zoom slips, and no latch on the apature ring, though it is quite stiff.
Does the job, on full frame Nikon slr (FG) its taken some good shots at cricket matches.
Even without a hood not bad in most situations.