I just wish it was 18mm instead of 28mm. I find it sharp throughout the zoom range. It has a macro feature which I haven't tried yet. Will give five stars for the FX setup, like a converting lens. I bought this expecting to buy a D600 but changed my mind as prices have never dropped low enough for me to make up my mind. If you have a DX lens, many go for the 18-105mm DX lens. Despite some mostly undeserved and unfounded criticism, this is the perfect lens for any DX camera.