* Maximum angle of view for format (full frame for full-frame lenses, APS-C for APS-C lenses, 4/3rds for 4/3rds lenses).
** Full-frame ultra-wide-angle lenses can be used on compatible-mount APS-C cameras, too, but won't produce ultrawide angles of view due to the smaller image sensor's crop factor.
*** APS-C-format Canon lenses can't be mounted on larger-format Canon DSLRs; APS-C-format Nikon lenses can be used with full-frame Nikon DSLRs, but the camera will crop the image to DX format; APS-C-format Sony lenses can be mounted on full-frame Sony DSLRs, but will vignette; APS-C-format Sigma, Tamron and Tokina lenses are for APS-C-format DSLRs only; all Pentax DSLRs (except the new 645 medium-format and Q compact model) are APS-C.
7 Deadly Compositional Sins Forget about adhering to the rules of composition and instead focus on staying clear of the pitfalls of a particular scene or situation More »
Sharp & Rich As a digital photographer, you can learn a lot from Ansel Adams. Choose the right gear and emulate the attention to detail that Adams devoted to his craft to get your best possible landscape photos. More »