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|Weight||13.23 oz (375 g)|
|Dimensions (dxl)||Approx. 2.8 x 2.6" (7.11 x 6.60 cm)|
|Filter thread||58 mm|
|Format compatibility||Pentax Digital (APS-C)|
|Focal length||55 mm
Comparable APS-C Focal Length: 82.5 mm
|Maximum reproduction ratio||1:5.7|
|Camera mount type||Pentax K|
|Angle of view||28.6°|
|Minimum focus distance||1.48' (45 cm)|
It seems like a shame that Pentax’s 55mm fast prime does not have full-frame coverage, but given that there is currently no full-frame Pentax body (other than older film cameras) this may not be such an important gripe.
Fringing in MTF images
Pentax smc DA* 55mm f/1.4 SDM is one of the latest addition to the company's growing portfolio of lenses specifically designed for digital SLR cameras. This is also one of the first KAF3 mount lenses in the company's potfolio.
Gary Wolstenholme takes a close look at this short telephoto lens from Pentax. This 55mm f/1.4 lens from Pentax is designed to be used with their latest generations of DSLR cameras and sports a bright maximum aperture of f/1.4 and silent SDM focusing for around £600, which I feel is a little pricey...
Excellent optical quality from f/2 onwards, Fast focusing, Weather selling, Low distortion and CA
Limited compatibility with older Pentax DSLRs, Price, A little soft at f/1.4
I got this lens to use for portraits of family and for day-to-day photography (yes I know it's not a typical street-photo focal length). I find the images crisp and the lens responsive. It's heavy, but it seems worth it, and the manual focus is easy and satisfying to use.
Durable, Easy To Use
A wonderful lens, really nice smooth bokeh. Not as sharp as a Carl Zeiss but it is autofocus. Also had no problems using it out in the rain, if the weather is bad this is the lens I'd want to have with me.
Consistent Output, Easily Interchangeable, Lightweight, Nice Bokeh, Rugged
Severe back-focus on my K10D and I don't understand why Pentax changed the (in my opinion great screw-motor) with the slower SDM, the image quality (manually focused because the SDM AF shows back-focus) is great by the way.
very sharp, great build and weather-sealing
price is too high, back-focus problems on the K10D (I guess on the K100Ds too) and the accuracy of the SDM system