TRUE Strengths

TRUE Strengths

Every digital camera on the market today has some sort of ASIC (Application Specific Integrated Circuit) to handle processing and the basic functions of the camera. Sigma's latest compact and SLR cameras utilise TRUE II processing engines which handle all the image processing. Richard Kilpatrick looks at the technology behind them.

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Sigma and the Sensor (R)evolution

Sigma and the Sensor (R)evolution

The digital SLR first surfaced in various forms in the mid 1980s, in forms as prototypical as the 120MP sensor demonstrated by Canon is now - using tube, then CCD technology and still video capture. The CCD sensor for single, still shot capture would come into its own with the Kodak DCS and related systems, though these models would continue to be a compromise of five-figure prices and quality barely better than a single-frame capture from a Laserdisc - but in the early days $23,000 to capture 700 pixel wide video frames was not unheard of, with devices like the Fuji ES-1 holding a small specialist market.

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Sigma 8-16mm f/4.5-5.6 DC HSM

Sigma 8-16mm f/4.5-5.6 DC HSM

This Sigma 12-24mm has been a popular choice for photographers, with nothing on the market that wide without producing a fisheye effect. The new Sigma 8-16mm provides APS-C size camera users with exactly the same angle-of-view as the 12-24mm does on full frame, opening up new possibilities to a wider photographic market.

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Sigma at Photokina

Sigma at Photokina

The bi-annual Photokina trade show is an important event in the photographic calendar. Not only does it allow photographers to see the whole spectrum of photographic kit under one roof (well, several roofs close together actually) but it provides the perfect platform for manufacturers to launch the next range of exiting products. This year is no different...

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Ben Hall

Ben Hall

Ben Hall has gained worldwide recognition as one of Britain’s foremost professional wildlife photographers. By focusing almost exclusively on the British Isles, Ben has developed an intimate understanding of our natural heritage and how best to represent it visually.

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SIGMA History 1961-2010

We believe that SIGMA products embody the high technology, experience and thoughtfulness of each of our staff members.

The products have been manufactured with our consolidated power at Aizu Factory equipped with the latest facilities. This plant utilizes a process production system as an “Intelligent Factory” on which all steps of production, sales and technology are focused. Now the plant has become our base of production where quality and high performance products are manufactured. We deal in a wide variety of image devices around the world. We have decided to contribute through our business achievements to the improvement of communication and the future living standards of the people in the world.

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Rob Franklin

Rob Franklin

To skydive with a camera you need to have completed at least 200 jumps and attained an international skydiving ‘B’ licence so, when you pick up a camera helmet for the first time, it’s a given you have some knowledge of the sport. Jumping with a camera however isn’t just as straightforward as that and it takes continual practice and skill to be safe in the air.

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Ian Wood

Ian Wood

There is something about having eye contact with these peaceful vegetarians that just makes you think. They are one of humankind’s closest relatives in the animal kingdom sharing 96.4% the same DNA as us. This perhaps gives us a moral obligation to ensure their survival. But more importantly they are a keystone species and a symbol for the threatened rain forests that are their home.

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Dennis Furnell

Dennis Furnell

A prolific writer, broadcaster and photographer, Denniss Furnell has gain a vast amount of experience in the industry. Specialising in natural history and conservation, he has published numerous book and worked with the BBC, RSPB and the Barclays Environmental Librabry to name a few. Dennis takes some time out to talk about his career and showcase some images taken on his Sigma equipment.

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Sigma 50mm F1.4 HSM

Sigma 50mm F1.4 HSM

Richard Kilpatrick tested the Sigma 50mm f/1.4 on both the cameras it could almost have been built for, the Nikon D3X and the Sony Alpha 900. To the Sony, it added – for the first time in his hands – HSM to an Alpha mount body. Here's what he found out.

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The Foveon Sensor

The Foveon Sensor

The Foveon CMOS sensor, as Sigma users know, is unique among camera imaging devices in abandoning the almost universally used Bayer mask approach in favour of a much more elegant three layer architecture which holds the promise of accurate colour rendition at each pixel site. Here, Julian Ashbourn gives his take on the subject

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Backyard Safari Part 4

Backyard Safari Part 4

In the three previous articles on local nature photography we have looked at the basic camera and lens types that can be used to good effect. If this has got your interest roused, you might have found a more specialized interest and want to get some more suitable gear. Here we look at dedicated lenses that fall into ultra telephoto and macro ranges.

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Mark Harwood

Mark Harwood

Mark is a graduate of the University College for the Creative Arts in Kent and worked as an assistant with some of the world’s best advertising, fashion, corporate and editorial photographers before establishing his own central London studio. He shoots a very broad range of work for an extensive a varied clientele, both in his studio and on location worldwide.

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A Professional View by Paul Harcourt Davies

A Professional View by Paul Harcourt Davies

Some self-appointed style gurus have criticised the Sigma digital cameras for their rather angular appearance when, in fact, the basic shape has been subtly morphed in the SD14 to produce a body that fits very well in the hands and feels surprisingly solid – why the surprise well, having used Hasselblads, large Mamiyas, Nikons and others over many years I am a slight plasticophobe.

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Which Macro Lens?

Which Macro Lens?

We are talking here about true Macro lenses, not the marketing hype Macros that are really only a close focussing lens. True Macro photography does not start until you reach the reproduction ratio of 1:1. That means that the image on the film/sensor is the same size as the object the image relates to.

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Backyard Safari Part 3

Backyard Safari Part 3

In this third part of our series on local nature photography we takes a look at the medium telephoto lens in the range of around 70-300mm in 135mm format. This also includes, on cropped dSLR’s, the newer ‘super-zooms’ around 18-200mm. After the standard lens, discussed in part two this is probably the next most versatile and widely available kind of lens.

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