The Blog: See what
Sigma is saying.

Tag: Robert O’Toole
04.03.2014

Surf Photography with the Sigma 50-500mm F4-6.3 DG Lens

Derek Peters barrel image at 100% actual pixel crop.

Over the last weekend a huge swell focused giant waves on California triggering a high surf advisory and I had my Sigma 50-500mm to document some of the action. By the end of the weekend the awe inspiring power of this swell took its toll with lots of snapped surfboard leashes, broken surfboards and injured surfers (one had to be taken away by ambulance), my friend Jim broke his foot on Sunday dropping into a huge wave!

At my local beach in south Los Angeles the waves break close to shore so my Sigma 50-500mm F4.5-6.3 APO DG OS HSM works very very well to document the action in the water here. Prime lenses are much harder to shoot with at beach breaks especially when the surf is large.

Read more >>

02.25.2014

Winter Waves with the Sigma 120-300mm F2.8 DG OS HSM | S

120-300mm F2.8 DG OS HSM | S, 1.4X Teleconverter EX APO, Nikon  D4, manual mode, 1/1250th s at f/5.6, ISO 160, Auto-ISO, -0.3 EV, handheld.

Over the last few months I have been testing the newest version of the Sigma’s 120-300 f/2.8. I have nothing but good experiences with the older version of this lens so I have been looking forward to working with this lens over the winter and spring at home in Southern California. So far my experiences have changed my view of this lens, the newest version of the 120-300 f/2.8. The previous version was good. I found that this latest version has quick and accurate autofocus; the image quality is superb and the focal range excellent for nature photography.

Read more >>

02.20.2014

Sigma’s 105mm F2.8 Macro OS

© 2014 Robert O'Toole | Sigma 105mm F2.8 EX DG OS HSM Macro, Nikon D800E, manual mode, 1/200th s at f/8, ISO 640, Single SB-R200 wireless flash at 1:8 power manual mode, handheld.

The Sigma 105mm F2.8 Macro EX DG OS HSM lens has become one of my favorite lenses for macro photography in the field. So what makes me reach for this lens when Sigma offers five macro lenses when I own all of them? The answer is balance- the 105mm lens is really good at everything and one of the best in terms image quality. This lens can give you the sharpest results possible with an excellent balance of size, weight, working distance at a very high value per dollar price.

Read more >>

11.14.2013

Macro Flash Photography: Create Natural Looking Macro Images

©2013 Robert O'Toole | Exposure mode: Manual mode | Shutter speed: 1/200th sec | Aperture: f8 | ISO 200 |  flash @ 1/40 output level | Lens: Sigma 105mm f/2.8 OS macro lens

One of the most important rules for macro flash photography is balance. For natural looking macro images you have to balance the ambient light and flash output. When the flash and ambient light are balanced the use of flash will not even be apparent to the viewer.

The problem is that with flash output overpowering the natural light in background it will underexpose and go dark, in some cases like the image below, it can underexpose to the point that is appears black.

Read more >>

10.10.2013

How to Control Extremely High Contrast Scenes

©2013 Robert O'Toole | Female crab spider on Cosmos. South Coast Botanical Gardens, RPV, California. Lens: Sigma 105mm f/2.8 OS macro lens | Nikon D800E | Shutter speed: 1/200 sec | Aperture:  f/8 | ISO 200. Monopod and Jobu tilt head. Nikon SB-R200 Wireless Speedlight in manual mode 1/5 power with diffuser.

Photographing in the field in contrasty harsh light is something every photographer has to deal with. This is a technique that I use for those difficult high contrast situations. For a more natural looking image you need to take control of the light to handle the light and dark tones in a high contrast image.

It is important to understand the problem with high contrast scenes. Exposing for the light tones will cause the darker tones to underexpose and exposing for the darks will result in blown out highlights.

Read more >>