Latest about Apertures
The best lens for street photography in 2025: top options for every mount
BUYING GUIDE A good prime is often considered the best lens for street photography. Here are our top picks for being discreet on the street
The best lens for portraits in 2025: short-tele primes perfect for pictures of people
Buying guide Check out these picture-perfect portrait primes Canon, Nikon, Sony, Fujifilm, Olympus, Panasonic, Leica and Sigma mirrorless cameras, plus plenty of budget-friendly alternatives
The best Canon lenses for DSLRs: go longer, wider and closer
Buying guide These are the best Canon lenses for DSLRs – and these EF and EF-S optics are still great to use on mirrorless cameras, too!
What is aperture in photography? The "f-number" is actually key to taking better photos
TUTORIAL What is aperture in photography? Here's what you need to know – and how it affects your images
What is exposure in photography?
WHAT IS It's the foundation of every image you take, so what exactly IS exposure in photography?
Sigma factory tour: We go behind the scenes to find out how some of the world’s greatest lenses are made
FACTORY TOUR We flew to Aizu, Japan to find out how some of the world’s best and most popular lenses are made at Sigma's one and only factory
The best 50mm lens: which 'nifty fifty' is the right choice for you?
Updated The best 50mm lens, or standard prime, is a great low-cost wide-aperture lens for bokehlicious portraits and shooting in low light
Olympus M.Zuiko 17mm f/1.8 review
review The Olympus M.Zuiko17mm f/1.8 is a super-teeny Micro Four Thirds lens with real bite
