Sigma 28-105mm Lens Set To Release on September 5--Is it a Rival to Canon?

Alleged releases of cameras and lenses have often excited photographers. And why should it not? After all, a new device could simply mean a new breakthrough! Well, that's usually the logic behind these rumors. Other times, such reports also mean that we compare the best gear in the market as every manufacturer offers a new variant that is slightly, if not entirely, distinct from the competitor. Today, however, we are here to discuss the rumor we heard about Sigma's latest release, the Sigma 28-1...