Excerpt: This lens is very sharp, even wide open and at normal distances, so not as fast as other 50mm primes, but you can use its full aperture range. The versatility of native 1:1 macro focusing is also an invaluable, in my opinion, even if you don't plan to do a lot of high-magnification dedicated macro...
Excerpt: I needed a f/2.8 or faster, I haven't used a 50mm since I owned a Ricoh. So,I'm coming from using a Sigma 17-70mm f/2.8 on my Canon 50D to a 50mm on my Pentax. Very impressed, not only is this lens super sharp and fast but it will practically shoot in the dark and having the macro is a bonus.
Excerpt: I haven't used a 50mm since I owned a Ricoh back in High School. Sharp, fast, awesome in low light, excellent macro and light weight. I'm coming from a Sigma 17-70mm on a Canon 50D.I switched to a Pentax K-5II's a month ago because I wanted something lighter to carry around.
Pros: Fast / accurate auto-focus, Lightweight, Low Light, Nice Bokeh
Excerpt: Images are razor sharp. Focus operation is fast and dead accurate. Macro is marvelous, especially set to manual focus, able to get as close to only 1.5" away from the tip of the lens, producing crystal clear images.
Pros: Consistent Output, Fast / accurate auto-focus, Nice Bokeh, Rugged, Strong Construction
) Most photographers (including me) rely pretty heavily on zoom lenses for ordinary subjects
Ward Johnson, Amazon
28 December 2014
Summary: If you're looking for a medium-focal-length aspherical (flat-field) macro lens, get one of these while you can; it appears that Pentax is phasing it out. This lens must be one of the best-kept secrets of the Pentax line: it is in the low-to-middle segment of their price range, but is similar in...
Excerpt: I put this on my new K-3 a couple of weeks ago, and have not taken it off. It is a nice all around lens. The auto focus has been spot on, and the manual focus is smooth and precise. Excellent images.
Pros: Fast / accurate auto-focus, Lightweight, Nice Bokeh, Strong Construction
Excerpt: Teriffic little lens, small light , a pleasure to use, SHARP.. great marco for close places, and doubles as an excellent 50mm portrait lens. Quick shift is loverly, and the clamp makes Manual Focus feel like using an old MF lens.
Pros: Small , Light, Solid feel, Love the Clamp for extra friction on the Focus colar in Manual Focus, and Quick shift
Cons: Zero... Well, could do with a Focus Limiter....