Lenses
Lenses
Optics worth knowing: lens design, character, rendering, and the glass that defines a system.
Lenses
The Engineering Behind Premium Camera Lenses
Apochromatic correction, aspherical surfaces, floating elements. What those terms actually mean, and why the finest lenses are exercises in controlled obsession.
Lenses
What Makes a Leica Noctilux Distinctive?
Sixty years, four optical formulas, one idea: a 50mm lens that sees in the dark. The history and character of Leica's fastest nameplate.
Lenses
The Role of Optical Glass in Modern Lenses
Before a lens is designed, the glass must exist. How a handful of glassmakers, and one 1884 partnership in Jena, still shape what lenses can do.
Lenses
Sigma's 20-60mm f/2.8-4 Starts Where Most Standard Zooms Do Not
The new Contemporary zoom opens at 20mm, weighs 385 grams, focuses to 15.8 centimeters and costs $849. Sigma's answer to the kit lens has arrived.