Latest about Focal Length
Sigma 28-105mm F2.8 DG DN Art review: a not so standard zoom lens
Review Designed for Sony E and L-mount full-frame cameras, the Sigma 28-105mm F2.8 DG DN Art takes f/2.8 standard zooms further into telephoto territory.
Report: Chinese lens manufacturers are developing autofocus zoom lenses
news Details are scarce, but there's good reason to believe China is more than capable of producing AF zoom lenses
7Artisans 60mm f/2.8 2X Ultra-Macro lens gives mirrorless cameras a closer look
News This full-frame macro lens for Canon RF, Nikon Z and Sony E mounts gets twice as close as most…
Cheap, fast, full-frame 75mm lens from TTArtisan released for Nikon and Sony
News Looking for an AF-capable, cut-price portrait prime for your mirrorless Nikon or Sony? It doesn't get much cheaper than this!
WTF is a focal plane mark? Your camera almost certainly has this strange symbol
TUTORIAL Ever noticed this weird symbol on your camera? It's called a focal plane mark – and it used to be pretty important
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!
Blazar Lens makes waves with "world’s first" autofocus 1.33x anamorphic lenses
news Blazar releases "World's first Autofocus anamorphic lenses" with a ratio squeeze of 1.33x
There's a partial lunar eclipse tonight – learn how and when to photograph this stunning celestial event
TUTORIAL The Northern Hemisphere will be treated to a partially eclipsed harvest supermoon during September 17 and 18. Here's how to photograph the standout celestial event, tonight
