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Sigma HSM ART DC 30mm F1.4 Standard Lens for Pentax Mount - Black
- Large-aperture F1.4 standard lens
- Delivers the highest level of image quality
- Minimal Optic Aberration
- Rounded 9-blade diaphragm
- Sigma's proprietary new A1 MTF
- 46-megapixel Foveon direct image sensor
- HSM (hypersonic motor)
- TSC (Thermally Stable Composite)
- Incorporating a Rear Focus system
- High-precision, rugged brass bayonet mount
- Flare and ghosting reduction
- SIGMA USB DOCK