Sigma 100-400mm C: A Surprising Challenger to Canon’s 100-400L in Image Sharpness

Sigma 100-400mm C: A Surprising Challenger to Canon’s 100-400L in Image Sharpness When it comes to telephoto zoom lenses, the Canon 100-400mm L series is often considered the gold standard. But what if I told you that Sigma's 100-400mm Contemporary lens—a lens that costs a fraction of the Canon—is giving it a serious run for its money in terms of image sharpness? No, this isn’t some camera enthusiast’s wild dream; it's a reality that has left many photographers scratching their heads (and possibly their wallets). Let’s dive into this unexpected lens battle, shall we?