They’ve often got a whole bunch of electronics built in as well. [Dan K] had just such a lens from Sigma, but wanted to get it working fully with a camera using the Canon EF lens fitting.

The Sigma SD1 is sold body-only, or bundled with one of three Sigma lenses: the 17-50mm f/2.8 EX DC OS zoom, 30mm f/1.4mm EX DG HSM prime, or 85mm EX DG HSM prime. The test results below are ...

Note that these shots were taken at f/4 with the bundled Sigma 17-50mm f/2.8 lens. This lens isn't as sharp as our reference Sigma 70mm lens at f/4 we normally use for these shots, however the 17 ...

Sigma's CEO Kazuto Yamaki has spoken in depth about the development of a pair of new lenses in a Youtube interview with ...

The taller the column, the better the lens performance. CA (Chromatic Aberration) is very well controlled at the centre, all the way through the focal length range. The edges do show CA ...

Value For Money The Sigma AF 10-18mm f/2.8 DC DN Contemporary lens is priced at £649. This is fairly unique, although Canon do offer an alternative of their own, the Canon RF-S 10-18mm f/4.5-6.3 ...

There was a time when a camera lens was simply a set of shaped pieces of glass in a tube, with a mount and an aperture. But as cameras have embraced electronics ever more, technology has found its ...

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Nestled deep in the British countryside is The Repair Shop, where a team of Britain's most skilled and caring craftspeople rescue and resurrect items their owners thought were beyond saving.

The traditional full line pharmacy wholesale distribution business, retail and private label products. Also has national Presence in the hospital pharmacy distribution market, and through its ...

What Is Credit Repair? Disputing credit reporting errors involves reviewing your credit history, identifying inaccuracies, and gathering evidence to support your claim. A reputable credit repair ...

This important work attempts to establish a causal link between neurotrophin signaling and experience-induced structural plasticity in dopaminergic circuits in the adult fly brain, a topic of broad ...