Pentax FA Star Series 85mm F/1.4 Review: Stellar Performer | Digital Trends
Amazon.com : Sigma 85mm f/1.4 EX DG HSM Large Aperture Medium Telephoto Prime Lens for Canon Digital SLR Cameras : Digital Slr Camera Lenses : Electronics
Comparison: 85mm Full Frame and 56mm APS-C. Thank you Sigma. – Eric L. Woods