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

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 ...

Like most Micro Four Thirds (MFT) lenses, this telephoto is incredibly compact ... the maximum aperture is reduced from f/2.8 to f/4. If you’d prefer to extend the reach of the lens further ...

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 ...