Expanded Specifications Pentax 100mm f2.8 SMC D-FA WR Macro Lens
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| Lens Mount | PENTAX KAF mount |
| Model No. | 21910 |
| Lens Construction [Elements/Groups] | 9 elements in 8 groups |
| Angle of View | 16° (24.5° with 35mm SLR) |
| Min. Aperture (f) | F32 |
| Min. Focusing Distance | 0.303 m |
| Max. Magnification | 1X |
| Filter Size | 49mm |
| Weight (g) | 340g (12 oz.) |
