Reviews and Problems with Pentax SMC DA 60-250mm f/4 ED [IF] SDM
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Value for money 7
Overall quality 8
Build quality 9
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. While not formally tested the high quality of the bokeh (out-of-focus blur) seems to be a differentiator compared to similar lenses - long tele zoom lenses are often problematic here.