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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What is MTF?

What is MTF?

MTF, or Modulation Transfer Function, is a scientific way of measuring lens performance, But isn't that just stuff for Geeks? Well, no, it does have a bearing on a lens' ability to produce sharp images that goes beyond the photographers technique and goes a long way to explain the difference in prices between apparently similar lenses.

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Back in focus

Back in focus

Check out any photographic internet forum, or for that matter any Photographic Magazine's letters pages and you will inevitably come across posts discussing focusing. The terms 'Back focus' or 'Front focus' crop up regularly, and often it is the lens that is blamed. But is it always the case? We decided to look a little further

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Phil Hurst

Phil Hurst

Phil is a Professional Photographer of considerable experience. He says about himself:- I have to be honest, it was with a bit of trepidation that I agreed to write a short article for the Sigma website. After all I am a photographer not an author and writing about myself feels just a little bit strange.

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