Is this telephoto lense any good? I seen it on ebay and it only has 2 hours left. I was wondering how much you think it's worth. Sigma 75-300mm F4-5.6 APO ZOOM Autofocus Lens : Nikon This is a Sigma 75-300mm F4-5.6 APO autofocus zoom lens for superb image quality and fantastic optical performance. This is the superior APO version. Perfect for Film & Digital The lens works perfectly with all film and digital cameras and is a superb buy. This lens is not a AF-S lens and therefore will not autofocus on NIKON D40 / D60 Series digital SLR cameras. It will work perfectly in autofocus mode on all other Nikon Film & Digital SLR Cameras. Full Working Order, Excellent Condition This lens is in excellent condition and works perfectly throughout. The lens has no faults and the optics are clean and mark, scratch, fungus free. Supplied in Sale - Sigma 75-300mm APO F4 - F5.6 Autofocus Zoom Lens - Sigma Front & Rear Lens Cap so what do you think? Also will it fit both my F55 and D80?