At DPReview, Roger Cicala explores why 50mm lenses—historically the simplest and cheapest lenses available for a 35mm camera—have gotten much bigger, more complex, and more expensive. “Historically, if you bought an F1.2 or wider aperture lens, you expected that it would be soft wide open and even stopped down it wouldn’t be as sharp as a less expensive, slower lens. The modern (and more complex) designs we’re seeing now allow F1.2 lenses be impressively sharp wide open, and just as sharp as a smaller aperture lens stopped down. And that is actually kind of a big deal.” Nikon’s Z-mount 50mm lenses are much larger, have more lens elements and cost three to seven times more than their decades-old AF/AF-D equivalents; that they’re also reportedly exquisitely better isn’t much help if you can’t afford them.
Tags: camera lenses
Jonathan Crowe blogs about maps at The Map Room and writes and reviews science fiction and fantasy; his work has been published by AE, The New York Review of Science Fiction, Strange Horizons and Tor.com. He lives in Shawville, Quebec.