| smc Pentax-DA* 55mm f/1.4 SDM | |
| Maker: | Pentax |
| Feat-Ws: | y |
| Feat-Usm: | y |
| Feat-Mfo: | y |
| Feat-Special: | Weather-resistant |
| Application: | Portrait |
| Type: | p |
| Flength: | 55mm |
| Flength-Eq: | 82.5mm |
| Fov: | 1.5 |
| Aperture: | f/1.4 / f/22 |
| Groups: | 8 |
| Elements: | 9 |
| Diaphragm: | 9, rounded |
| Close-Dist: | 0.45m (01.48feet) |
| Max-Mag: | 0.173x |
| Max-Diameter: | 70.5mm |
| Max-Length: | 66mm |
| Weight: | 375g |
| Filter: | 58mm |
| Hood: | PH-RBH 58mm |
| Case: | S90-100 |
| Av-Diag: | 28.6° |
| Start: | 2008 |
| Msrp: | $799.95 |
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]
Pentax smc DA* 55mm 1:1.4 SDM review