Jack Howard
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Jack Howard is a lifelong photographer and author of two editions of the how-to book, Practical HDRI. Based in Central Jersey, Jack's go-to photography spots are backroads and beaches of his home state. He loves to travel far and wide with his wife and daughter, visiting national parks, museums, tropical islands and more along the way.

Video Quicktips for Photographers

Our new video quicktips for photographers series offers advice for anyone who is looking to understand more about the techniques and technology that can help them make better pictures. Each episode is just a few minutes long and looks to explain and offer advice in an easy-to-grasp way. Check back all month long as we add new episodes to this series.

Sigma dp2 Quattro: First Look

I’ve spent the weekend with the dp2 Quattro, and I can tell you straight-out that this is far and away the best dp camera I’ve had my hands on. Here’s our first look at the Sigma dp2 Quattro.

Great Camera Gear Ideas for the Summer Season from Sigma!

Great gear ideas for the summer, from the team at Sigma. Ideas for cameras and lenses for wherever you’re heading this sunny season!

First Look: Sigma 50mm F1.4 DG HSM | A

The Sigma 50mm F1.4 DG HSM | A lens is simply amazing. This standard field of view, fast-aperture, full-frame, prime lens combines outstanding sharpness, fast autofocus, in a lens that is built with a singular vision on performance.

The Great Everyday Lens: Sigma 18-200mm F3.5-6.3 DC OS HSM | C

The Sigma 18-200mm F3.5-6.3 DC OS HSM | C is a fantastic everyday lens for photographers looking for a compact, high-ratio zoom lens for small DSLRs

Rediscovering the Sigma 150-500mm F5-6.3 zoom lens for Outdoor Photography

The Sigma 150-500mm F5-6.3 zoom lens offers great versatatility and reach in a compact package, perfect for on-the-go wildlife and birding phtoography.

Tips for Super-telephoto Zoom Lens Photography

Supertelephoto lenses can help bring a whole new level to your photography; and it just takes a little practice to get the hang of some of the particulars of working with long-reach lenses. Here are some top tips for making the most of supertelephoto zoom lenses.

The Sigma 180mm F2.8 EX DG OS HSM Macro Lens for Close-up Work

The Sigma 180mm F2.8 EX DG OS HSM Macro lens is the biggest, longest macro lens in the Sigma lens catalog. This telephoto lens offers true life-sized reproduction with a 1:1 maximum magnification ratio. Incredible sharpness—thanks to its state of the art optical design—Optical Stabilizer, and a three-zone focus limiter make this a serious lens for advanced macro photographers.

Geometric and Diffraction MTF Charts: A Clearer Picture for Photographers

Our technical product information has been expanded to now include both Geometric and Diffraction MTF charts for new Sigma lenses. You can take a look at the technical information about the new Sigma 18-200mm F3.5-6.3 DC OS HSM | Contemporary lens on the Sigma Global Vision website to see these graphs plotted as part of the total package of information we share to help photographers understand the performance of our lenses.

Prime Time: Focus on Fixed Focal Length Lenses

Prime lenses are designed for exceptional imaging at a single focal length. Unlike zoom lenses that easily span a given focal range and variable field of view with a twist of the zoom ring, the field of view and focal length remains constant. If you want to take in less of the surroundings with a given prime lens, you’ve got to physically move closer, and to take in more of the scene, you’ve got to back up. But of course, as you move, the angle of view remains the same all the while.