Latest about Focal Length
The best 70-200mm lenses: top constant-aperture telephoto zooms
BUYING GUIDE The best 70-200mm f/2.8 or f/4 lenses combine a fast constant maximum aperture and top build quality, and are essential additions to any pro's kit bag
Best lenses for bokeh: fast primes for brilliant background blur
UPDATED Here's my choice of the best lenses for bokeh. Isolate your subject and make it stand out against a dreamy blurred backdrop
The best camera sensor cleaner
Updated Clean up your act, or at least your image sensor. These top kits are just the job for mirrorless cameras and DSLRs
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
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
The best Canon superzoom lenses: supersized zoom range for Canon DSLR and mirrorless cameras
Updated We pick the best Canon superzoom lenses for Canon DSLR and mirrorless cameras – single lenses to replace two or three!
The best Micro Four Thirds lenses for Olympus / OM System and Panasonic cameras
UPDATED We round up the best Micro Four Thirds lenses, including primes, ultra-wide angles and super-telephotos
