Sigma Slr & Dslr Lenses | Sigma 180Mm F/2.8 Ex Apo Macro Dg Hsm Os Autofocus Lens For Nikon {86}

The Apo Macro Sigma 180Mm F2.8 Ex Dg Os Hsm Is A High Performance Telephoto Macro Lens Designed For Full Frame Sensors But May Also Be Used With Smaller Aps-C Size Sensors With A Corresponding Effective Increase In Focal Length To About 260Mm With Most Cameras. The 180Mm F2.8 Has A Large Aperture To Handle Any Lighting Scenario And The Macro Capabilities Allow Focusing Down To 1:1 Magnification Ratio At Its Closest Working Distance Of 18.5 Inches. A Hyper Sonic Motor (Hsm) Ensures Quiet, High Speed, And Accurate Autofocusing While An Optical Stabilizer (Os) Compensates For Camera Shake When Shooting Hand Held. The 180Mm F2.8 Macro Also Incorporates A Floating Internal Focusing System Which Reduces Aberration During Shooting Working Together With Three Fld (“F” Low Dispersion) Glass Elements For Superior Correction Of Color Aberration. This Lens Has A Rounded 9 Blade Diaphragm Creating An Attractive Blur To The Out Of Focus Areas Of The Image And Is Also Compatible With Sigma Apo Teleconverters.