Reviews and Problems with Pentax SMC DA 60-250mm f/4 ED [IF] SDM
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Pentax DA* 60-250mm F4
10 November 2013
Summary: To summarize, we really like this lens! It is an excellent tool with many perks and no real faults. The DA* 60-250mm is arguably one of the best lenses in the current high-end Pentax lens lineup due to its versatility and stellar optical performance.
Pros: Excellent image quality wide-open, Sharp, Very few aberrations for a zoom, Excellent build quality, Several sensible and unique design elements, Weather sealing, Silent autofocus, Very convenient zoom range, Internal focus, Quick-shift full-time manual focus override (and a well-designed focus ring)
Cons: No internal zooming (barrel extends significantly), AF somewhat slow for sports, Just barely hand-holdable, Expensive
Summary: Overall this is a very capable lens but it is also a costly one. Photographers who genuinely need its f/4 constant maximum aperture and weatherproofing measures will doubtless be willing to invest in a lens of such quality but others may rightly hesitate.
Pentax SMC DA* 60-250mm f/4 ED [IF] SDM - Review / Test Report
13 January 2010
Conclusion: The Pentax SMC DA* 60-250mm f/4 ED [IF] SDM is a highly desirable long tele zoom lens with only minor weaknesses (except QC maybe). It is very sharp through its range and even the secondary aspects such as distortions, vignetting and lateral CAs are well controlled.
Excerpt: smc Pentax DA* 60-250 mm F/4 ED IF SDM to prawdziwy unikat. Tylko Pentax ma w ofercie obiektyw o tak szczególnym zakresie i nic podobnego nie znajdziemy ani u Canona ani Nikona. W przypadku Pentaxa, występowanie takiej konstrukcji nie jest aż tak dziwne, ponieważ konstruktorzy tej marki od wielu lat...