Lower numbers translate into wider angles, while larger numbers see a much narrower view and make for a telephoto lens ...

SMC Pentax-FA 645 45-85mm f ... of lenses is not as vast as the 35mm-format and smaller formats. The quality may be a bit superfluous when pitted against getting the shot with super telephoto ...

Central sharpness is excellent from f/4.5 to f/11, very good at f/16 ... Bokeh is expected to be smooth with long telephoto lenses and this is no exception. Out-of-focus areas show good gradation ...

Note this: Many zoom lenses are f/2.8 at the wide-angle end and then slow down to f/4 or f/5.6 at the telephoto extreme—not much good for night photography. Going Creative and Experimental Let ...

You don’t need a huge telephoto prime lens to photograph wildlife. Andy Westlake is your guide to some affordable zoom ...

The 50-400mm F/4.5-6.3 Di III VC VXD is getting some autofocus improvements and support for shooting at up to 120fps.

OM System has lenses across wide-angle, standard, and telephoto zoom ... including the FE 85mm f/1.4, the 135mm f/1.8, and a more basic 35mm f/1.4 full-frame lens. Panasonic's Lumix cameras ...

f/4 is the sweet spot ... but there are more affordable MFT telephoto lenses available if your budget does not stretch this far. To soften the blow, however, the lens does include a 1.4x ...