The smc Pentax-DA* 55mm f/1.4 SDM lens is a professional prime lens for the Pentax K-mount. It is designed for portrait use[1] with a 35mm equivalent focal length of 82.5mm. The lens features weather sealing, an SDM ultrasonic motor for quiet autofocus, and has 9 rounded diaphragm blades for smoother bokeh. Autofocus speed is similar to an equivalent screwdrive lens.[2]
Maker | Pentax |
---|---|
Technical data | |
Type | Prime |
Focal length | 55mm |
Focal length (35mm equiv.) | 82.5mm |
Crop factor | 1.5 |
Aperture (max/min) | f/1.4 / f/22 |
Close focus distance | 0.45 metres (18 in) |
Max. magnification | 0.173x |
Diaphragm blades | 9, rounded |
Construction | 9 elements in 8 groups |
Features | |
Manual focus override | ![]() |
Ultrasonic motor | ![]() |
Weather-sealing | ![]() |
Unique features | Weather-resistant |
Application | Portrait |
Physical | |
Max. length | 66.0 millimetres (2.60 in) |
Diameter | 70.5 millimetres (2.78 in) |
Weight | 375 grams (13.2 oz) |
Filter diameter | 58mm |
Accessories | |
Lens hood | PH-RBH 58mm |
Case | S90-100 |
Angle of view | |
Diagonal | 28.6° |
History | |
Introduction | 2008 |
Retail info | |
MSRP | $799.95 USD |
References
edit- ^ http://www.dpreview.com/lensreviews/pentax_55_1p4_p15/ DPReview: Pentax smc DA* 55mm 1:1.4 SDM review
- ^ http://www.digitalcamerareview.com/default.asp?newsID=3916&review=pentax+da+55mm DigitalCameraReview: Pentax DA* 55mm f/1.4 SDM Lens Review
External links
edit- Media related to SMC Pentax-DA* 55mm F1.4 SDM at Wikimedia Commons
- SMC Pentax-DA* 55mm f/1.4 SDM
- Bojidar Dimitrov's Pentax K-Mount Page: DA* 55/1.4 SDM