Lens Guides

Hands-on reviews, technical information, and advice on Sigma Art, Sports and Contemporary lenses for DSLRs and Mirrorless cameras.

Sigma SD1: It’s All About the Image

Sigma’s tech editor Jack Howard shares first impressions of shooting with the brand-new Sigma SD1 SLR, with its 4800x3200x3 Foveon X3 Direct Image Sensor.

Grabbing a Hawk with the Sigma APO 70-200 F2.8 EX DG OS HSM by Jack Howard

A few weeks ago, just around that time of day that’s just past late afternoon, and just before twilight, I was out in the back yard with my dog, Bailey. I spied a bunch of fresh feathers on the ground,…

Traveling light with the Sigma 18-250mm F3.5-6.3 DC OS HSM

There are times when packing light really is what matters most for photo adventures. And on those occasions when hauling a big camera bag with a bunch of specialty lenses isn’t an option for one reason or another, a multi-purpose…

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.

Sigma’s 50-500mm f4.5-6.3 DG OS HSM APO AF Lens: Reader Q+As

Sigma’s 50-500mm f4.5-6.3 DG OS HSM APO AF Lens: Reader Q+As We’ve gotten a number of great reader questions since we’ve opened up the Photoworld@sigmaphoto.com hotline, and many of these relate to the very popular Sigma 50-500mm f4.5-6.3 DG OS…

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.

Introducing the new technical editor of Sigma’s Photo World, Jack Howard! (Part II)

Who am I? Part 2 I’m a writer! That self-portrait in my first post, (and the variation on the Sigma Home page right now,) was shot just last week at Rutgers Gardens, in New Brunswick, NJ. I first visited this…

Hi, I’m Jack Howard, and I’m working for Sigma now. It’s nice to meet you all!

Sigma’s new Web Editor, Jack Howard, talks about his background as a photographer, and long experience with Sigma gear, and invites readers to submit questions and suggestions for features.