- Ultra-bright f/1.7 maximum aperture for working in low-light conditions
- Eleven lenses in nine groups, including one ED lens, two HR lenses, and one aspherical lens, to reduce flare and ghosting for improved contrast
- Supports electronic aperture control
- Internal focus design and compact form factor
- Nine-blade diaphragm contributing to a pleasing bokeh quality
- 1.1' minimum focusing distance for working moderately close to subjects
- Very light 6 oz total weight
- Support EXIF data transmission