Sigma 8-16mm F4.5-5.6 DC HSM: Hands-on Advice. by Jack Howard

Jack Howard offers tips for working with the Sigma 8-16mm F4.5-5.6 DC HSM lens for both interior and exterior architecture, people, and landscapes.

High Dynamic Range Imaging with the Sigma DP1x by Jack Howard

HDRI photographer Jack Howard, author of “Practical HDRI” talks about the professional results that Sigma’s compact DP1x camera can make for serious HDR photography.