Full-Frame | f/2 to f/16 | Fast Portrait-Length Lens | Nano Coating and Resistance Coating | Two ED & Two HR Lens Elements | Minimum Focus Distance: 2.43' | 10 Elements in 8 Groups
APS-C | f/1.7 to f/16 | 52.5mm (Full-Frame Equivalent) | Large Aperture Standard Prime | STM Autofocus | 6.3" Close Focus | Compact 2.8"-Long Design | 52mm Front Filter Thread