The Engineers at Sigma are clearly operating on another level with this one. In what might be the best APS-C Portrait lens ever created, Sigma has introduced the Sigma 50-100mm F1.8 HSM Art to an unexpected crowd. With an 80-160mm Equivalent focal range and a constant F1.8 aperture, this Sigma lens hits the coveted 85mm and 135mm focal lengths. The Sigma 50mm and 35mm F1.4 Art lenses are probably my favorite prime lenses and if the previous Sigma 18-35mm F1.8 lens (review) is any indication, this is definitely a lens you will want to own when it becomes available in April.

Preorder Today
Sigma 50-150mm F1.8 $1,099 -  B&H  |   Adorama   

Some notable specs: 

• Aperture Range: f/1.8 to f/16
• One SLD and Three FLD Elements
• One High-Refractive Index Element
• Super Multi-Layer Coating
• Hyper Sonic AF Motor
• Internal Zoom and Focus; MF Override
• Fluorine-Coated Polycarbonate Diaphragm
• Tripod Collar
• 21 Elements in 15 Groups
• Minimum Focus Distance (95cm) 3.12′
• 82mm Filter Ring
• 94mm x 170mm (3.7″ x 6.7″)
• 1491g (3.28 lb)
• Canon, Nikon and Sigma Mount Options