Ef-S 15-85mm F/3.5-5.6 Is Usm
What should I get used lenses?

Hello, I have a Canon 40D with 28-135 mm lens, I'm thinking of getting a better goal, but I'm stuck to decide what i get Shaud, I have three options, he wondered whether he should get a 24-105mm f/4L IS USM Autofocus Lens Canon or the Canon EF 17-40mm f/4L USM or Canon EF-S 15-85mm f/3.5-5.6 IS USM Lens im really at a standstill for the lens to get. all have their strengths and weaknesses. I just want to know what is the most clear. that the image quality is due note of this I want to replace my 28-135 lens for a bettet, (better picture quality) no boulder quality if the construction quality was very good but does have good / crisp then build quality means nothing in my opinon second note I want to use a single lens for general use very appreciated your answers.

The Canon EF-S 15-85mm f/3.5-5.6 IS ISM objective would be a great lens and that gives a good wide-angle focal length for shooting landscapes and medium telephoto focal length of a bullet shot portraits. If you still intend to buy a full frame DSLR like any other bodies or CANON EOS 1D series 5D, this lens is incompatible as are all other EF-S ..