fordmondeo wrote in post #18613352
The likes of sigma are just cheap knockoff versions of quality optics.
That used to be true, years ago. . Now, however, it isn't really the case so much as it was then.
These days, in some instances, the Sigma lens is actually better than the Canon "L" equivalent.
In other cases, Sigma makes something for which there is no Canon equivalent, such as with my 300-800mm f5.6 zoom.
But there is some truth in what you say, in that Sigma "knocks off" other manufacturers' lenses by so often making a lens in the exact same focal length and aperture.
So yes, there are times when Sigma looks like they are being innovative by making something that doesn't already exist. . But then there are other times when they just make something that Canon is already making, and at those times they look like they are just trying to make a cheaper version to get sales based on the tendencies of price-conscious customers. . I wish they wouldn't do that.
"Your" and "you're" are different words with completely different meanings - please use the correct one.
"They're", "their", and "there" are different words with completely different meanings - please use the correct one.
"Fare" and "fair" are different words with completely different meanings - please use the correct one. The proper expression is "moot point", NOT "mute point".