I had a 17-70 sigma which was great and sharp but when it comes to 17 wide it was soft at the corners even at f8 higher, also it takes in alot of battery usage, don't know why.Af was superb though, but i heard good things about the Tamron too but it has the vc and non vc and thats another question to go around.So anyone can help me decide on which is which on my Nikon d7000? I need sharp beautiful bokeh images. P. s Nikkors are just to expensive. Thank you very much
>>> Between Tamron 17-50 2.8 and sigma 17-50 2.8 which is best for the Nikon d7000?