Warby Parker on Twitter: "Oh hello, Haskell! Our best-selling crystal frame has gone on a serious color spree with six new flash lens options: https://t.co/XUnjxLfkXB https://t.co/8Z5aABJwg2" / Twitter
LENS - Century Optics Pro Series .6x Wide Angle Adapter Mk2 Sony HDV, | eBay
Optics By Example by Chris Penner [Leanpub PDF/iPad/Kindle]
Optics — Lenses 1.1.0 documentation
Through a Lens Darkly: How the News Media Perceive and Portray Evangelicals: Haskell, David M.: 9781894667920: Amazon.com: Books
Apex Lenses Polarized Replacement Lenses for Warby Parker Haskell Sunglasses (24K Gold) at Amazon Women's Clothing store
André Staltz on Twitter: "About Recoil (FB's new state management library), it has selectors with both `get` and `set` parts, which is basically a lens in disguise. See my talk about lenses