This large aperture medium telephoto macro lens offers advanced performance of close-up photography. Sigma?s own proprietary OS (Optical Stabilizer) system enables handheld close-up photography. A Special Low Dispersion (SLD) lens and one high refractive index SLD lens provide excellent correction for all types of aberration and distortion. A floating focusing system moves two different lens groups in the optical path to different positions. This system compensates for astigmatic aberration and spherical aberration and provides extremely high optical performance from infinity to 1:1 Macro.The Super Multi-Layer Coating reduces flare and ghosting, providing high contrast images. It is also possible to use this lens with Sigma's APO TELE CONVERTERS. The HSM (Hyper Sonic Motor) ensures quiet and high speed autofocus as well as full-time manual focus capability. This lens features a rounded 9 blade diaphragm creating an attractive blur to the out of focus areas of the

Image Circle	35mm
Type	Telephoto Prime Macro
Focal Length	105mm
APS Equivalent	1.5x: 157.5mm; 1.6x: 168mm
Max Aperture	ƒ/2.8
Min Aperture	ƒ/22
Diaphragm Blades	9 (rounded)
Lens Construction	16 elements in 11 groups
Diagonal Angle of View (Based on image circle)	23.3 degrees
Focus Details	HSM with full-time manual override, focus limiter
Front Element Rotation	No
Zoom System	n/a
Closest Focus	31.2cm / 12.3 in.
Magnification Ratio	1.0x / 1:1
Filter Size	62mm

• Front & Rear Lens Caps
• Lens Hood
• Hood Adapter
• Brand New Factory Fresh Import Model