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f/1.4 vs f/1.8: Can You Actually Tell the Difference?

Given how much more it costs to buy an f/1.4 prime compared to an f/1.8, beginners in particular often ask if the upgrade is worth it. Build quality and optical quality being equal, is the difference in light gathering capability and depth of field noticeable? Can you really tell?

Sigma to Unveil a Crazy Fast 50-100mm f/1.8 Art Lens

Whoa. Sigma is on the brink of shaking up the camera lens industry yet again with another groundbreaking Art lens. Next week, on February 23rd, 2016, Sigma will reportedly announce a new 50-100mm f/1.8 DC HSM Art lens -- a zoom lens with an unusually large f/1.8 fixed aperture.

Sigma’s Game-Changing 18-35mm f/1.8 Zoom Lens to Cost Just $799

Sigma shook up the camera world back in April by announcing its new 18-35mm f/1.8 DC HSM lens -- the world's first zoom lens with a fixed maximum aperture of f/1.8. It turns out the revolutionary lens will have a revolutionary price tag as well: the company announced today that the lens will cost just $799.

Sigma Drops Bombshell, Announces a 18-35mm f/1.8 Lens

Wow. The rumor of a new Sigma 18-35mm f/1.8 lens we shared earlier today has just been confirmed by Sigma. The company has just officially announced the lens, which is the world's first lens that offers a fixed f/1.8 aperture throughout its zoom range. That's a pretty big deal.