The SMC Pentax DA 55 mm f/ 1.4 SDM is a casual portrait lens of rather high quality. It can be used as a kit lens, as well.
It produces very beautiful bokeh.
The optical scheme of the lens takes advantage of special sorts of optic glass and Aero Bright Coating (ABC), a Pentax innovative technology.
The coating provides accurate optical transmission without loss of beams of the entire visible spectrum, which prevents flare and chromatic aberrations.
Supersonic Direct drive Motor SDM ensures smooth and silent autofocusing, as well as a precise positioning of the internal focusing unit.
The SMC Pentax DA 55 mm f/ 1.4 SDM pros:
Good color rendering;
Reliable dust and moisture protection;
Sharpness and contrast;
The SMC Pentax DA 55 mm f/ 1.4 SDM cons:
Shortcomings of calibration;
F/1.4 lens speed makes it possible to gather sufficient light for good performance even in low light conditions.
Equivalent focal length is 85 mm (when mounted on a SLR camera with an APS-C sensor).
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Posted by: KleoY Date of publication: 07.02.2011