I tested 5 copies of the DA*55 and was unable to find one that could focus reliably on my K-7. I even tried one of them on a K-5 unsuccessfully. My experience is consistent with dpreview's test results. There are many satisfied users of this lens, so I believe that there must be some perfect copies out there, but I also believe that some of those users are simply unaware that their lenses are dysfunctional. (It happens all the time.) My advice to prospective buyers is to test the lens ...View review in forums Leave a comment on this review
Pentax smc DA* 55mm F1.4 SDM
Announced Sep 22, 2008 •
Telephoto prime lens | Pentax KAF3 | 21790
Most popular cameras
Canon EOS 77D / EOS 9000D3.2%Panasonic Lumix DC-GH52.1%Sony Cyber-shot DSC-RX100 V2.0%Panasonic Lumix DMC-LX10 (Lumix DMC-LX15)2.0%Panasonic Lumix DMC-ZS100 (Lumix DMC-TZ100)2.0%Fujifilm X100F1.6%Fujifilm GFX 50S1.5%Sony Alpha 7R II1.2%Panasonic Lumix DMC-LX1001.1%Hasselblad X1D1.0%
Beginner's GuidesGetting StartedIn-depth testingLatest Camera ReviewsBeyond the studio testsFeature Articles and Videosreal world performanceField Test Videossee how we seeSample GalleriesIn-depth ReviewFujifilm X100FShow CoverageHits and Misses from CP+ 2017Throwback ThursdayClassic Cameras from Days PastWhat's that Noise?Shedding some light on the sources of noise2415FeatureWhat is equivalence?