Regarding the image quality which is better the 18-135mm lens or the 18-55 +55 -250 mm lenses ?
How much could a Nikon 18-55 VR lens and a 55-300 VR lens be sold for after under a year of use ? Would it be a good idea to get the Sigma 18-250 lens -LRB- currently $ 349 -RRB- instead ?