| Pentax smc D-FA 100 mm F2.8 Macro WR | |
| Maker: | Pentax |
| Mount: | Pentax K |
| Focusdrive: | Screwdrive |
| Feat-Ws: | y |
| Feat-Is: | n |
| Feat-Ar: | n |
| Feat-Mfo: | y |
| Type: | p |
| Flength: | 100 mm |
| Aperture: | f/2.8 |
| Elements: | 9 |
| Groups: | 8 |
| Diaphragm: | 8 |
| Close-Dist: | 0.3m (01feet) |
| Max-Dist: | Infinity |
| Max-Mag: | 1 |
| Max-Diameter: | 65mm |
| Weight: | 340g |
| Filter: | 49 mm |
| Start: | 2009 |
The Pentax smc D-FA 100 mm F2.8 Macro WR is a macro lens for K-mount announced by Pentax on December 9, 2009.