Robert O'Toole
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Sigma 100-400mm F5-6.3 DG OS HSM | Contemporary: Alaska Field Report

The Sigma 100-400mm F5-6.3 DG OS HSM | C lens is an excellent choice for Alaskan Photo safaris, reports Sigma Pro Robert O’Toole.

Sigma 150-600mm Sport vs Sigma 120-300mm F2.8+2x

What are the key difference between the Sigma 150-600mm Sport lens and the 120-300mm F2.8 Sport lens paired with the 2.0x teleconverter which makes it a constant-aperture 240-600mm F5.6 zoom lens?

Cranes and Fall Colors At Bosque del Apache, an artistic approach

Bosque del Apache in New Mexico is one of the world’s premier spots for doing bird photography. Located on a major western flyway, every year millions of birds pass through on their way south. And one of the most recognizable is the Sand Hill Crane, which is a great avian subject for making a variety of spectacular photos. In this piece, we are going to discuss panning and speed-blur techniques.

Close Encounters with Bears using Sigma 120-300mm F2.8 Sports

If you are into outdoor photography, I suggest you check out Katmai National Park and Preserve in Alaska on your next trip. Here are few of my favorite moments and highlights from this summer that will give you an idea…

Alaska Brown Bear Photo Tour: Behind the Scenes With the Sigma 18-300mm DC MACRO OS HSM Contemporary

This summer I headed up to Alaska with a new Sigma 18-300 F3.5-6.3 DC OS HSM | Contemporary lens in my bag to help me document my time photographing the coastal brown bear and other wildlife. My plan was to…

South Africa Photo Safari with the Sigma 150-600mm Sports

The stiffness in my back and legs from 15 hours in coach was a small price to pay considering I was on my way to photographic heaven. My flight was taking me non-stop from Atlanta all the way to Johannesburg…

Japan Photo Tour, Part II: Snow Monkeys

What is it about snow monkeys that brings people from all over the world back year after year? After all the famous snow monkey park is pretty small and can get crowded but being able to see the snow monkeys close up and interacting and with one another, and sometimes with people, is really an experience you wont forget. But above all else I think that the young monkeys and their non stop energy are really the biggest attractions at the park.

Japan Photo Tour Part I: Tokyo

We just recently returned from an awesome 30+ day tour of Japan and the people, food, opportunities, and sights were all amazing, it seemed like there was always a surprise or something new around every corner.

During my winter wildlife tour we visit a few different areas of Japan but before that tour officially begins we had the chance to spend a few days in and around the greater Tokyo area doing street shooting and visiting some of the most photogenic tourist hotspots. This post features some of my favorite images from around Tokyo.

High-Magnification Macro Photography with the 24mm F1.4 Art

High Magnification Macro Photography reaches into a fascinating world of details that are normally hidden to the naked eye. The simplest and most cost effective way to get reach high magnification is to reverse mount a wide angle lens. When used in reverse the 24mm F1.4 DG HSM | Art lens gives me sharp detailed images at 5X or five times life-size. Check out some of my favorite images below.

Big Wave Surfing at Todos Santos Island Mexico!

This winter the El Nino weather phenomenon is creating ideal conditions for big wave surfing photography. By pure luck I was offered space on a charter boat that was going to be out in the lineup during a big wave…