Reviews and Problems with Pentax SMC-FA 20-35mm f/4 AL
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Overall quality 6
Build quality 5
Pentax SMC-FA 20-35mm f/4 AL - Review / Lab Test
31 October 2008
Conclusion: The Pentax SMC-FA 20-35mm f/4 AL is a very good lens but it doesn't really offer much over its successor - the SMC DA 16-45mm f/4 ED AL. Similar to its cousin it has one primary problem: lateral CAs (color shadows at harsh contrast transitions) at 20mm. Other than that the lens is capable to produce a very good resolution and comparatively low distortions and vignetting. The build quality is about average for a consumer grade zoom.