Canon EF-S 17-55mm VS Sigma 17-50mm VS Tamron 17-50mm?

Sovern wrote:

Keith Z Leonard wrote:

Sovern wrote:

By the way you paid $600 for a lens that is soft at 2.8 and has issues with the edges at 2.8 and even stopped down a little. The Canon has 5mm extra reach and is sharp corner to corner wide open, doesn't produce a yellow color tint that the Sigma is known for, has a higher resale value, and has better optics/produces more desirable bokeh.

I call shinannigans, the Sigma is actually sharper at f2.8 than the Canon (close though) in the center and softer at the edges (but still not bad), soft at the corners, that does not make it "soft at f2.8". I've been quite happy with f2.8 performance in head to head comparisons to the Canon. As to Sigma quality control, I guess I've been lucky. Of the 30 f1.4, 50 1.4, 18-50 f2.8, 2x 17-50 f2.8 OS, 50-500 Bigma OS that I've used only the 50 f1.4 had issues, so I sent it in for a week, came back working, so I'm not complaining.

I'd never recommend a variable aperture lens for what he's shooting either. They're a PITA to work with especially combined with flash.

I agree here to some extent, it's much nicer to have a constant aperture lens in the standard range, but it all comes down to money. I often recommend the 100-400 L which is variable aperture though, are you saying you only shoot telephoto primes? Or just don't use long lenses?

All lenses are a compromise. Going the Sigma route you pay less due to the compromises of getting a lower quality lens that is reverse engineered from the Canon one and has a yellow color cast and is soft wide open and at the edges not to mention you play the Sigma lottery.

Going the Canon route you get an excellent lens with 5mm extra reach, Canon IS, sharp wide open corner to corner at F2.8, and has a much higher resale value than the Sigma or Tamron variants if you ever want to see your Canon lens.

Why not go all the way and just get Canon lenses? All of the other lens manufactures just reverse engineer what they do and Canon Lenses with Canon body's won't give you any weird color casts, you get a higher resale value, and you're not playing a lottery hoping you get a good lens.

Do you have an example of a yellow cast in a side by side comparison?