The first problem we need to look at is, how close the lens will focus. Lenses have a minimum focus distance which varies considerably from lens to lens, some longer zoom lenses have a 'macro' setting and will focus quite close but most lenses will not focus close enough to take the picture on the right.


submitted: 5 years and 3469 days ago

Tags:close-upsdistancesfocuslenses

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Sigma makes some interesting lenses for digital SLR cameras. They also produce some of their own digital SLR bodies with a class-unto-itself new type of sensor. Sigma is mainly known as a third-party lens manufacturer, producing lenses in mounts compatible with the major brands: Canon, Nikon, Pentax, Sony, Olympus. They offer high-quality glass in many of the popular focal lengths which, in many cases, are at more affordable prices than the specific manufacturer’s offerings.
This article covers every current Sigma product.


submitted: 5 years and 3468 days ago

Tags:camerasdigitalslensessigmaslr

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In Photography, your lens is often your most important purchase. This photography tutorial outlines some important qualities of different lenses, and how each performs in identical situations.


submitted: 5 years and 3448 days ago

Tags:focallengthslenses

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With today's high-tech pro cameras and IS and VR lenses, learning to take perfectly sharp, expertly exposed photographs is a snap. There are thousands of technically perfect photographs in print and on the web and it seems there are as many talented amateurs emerging every day. But there is a notable difference in the work of a photographer who takes the time to think about the composition of their image. The composition sets the mood for the shot and tells the story. Compositions can be used to evoke powerful emotional responses in a viewer, a goal for many photographers, but something that is achieved by few.


submitted: 5 years and 3448 days ago

Tags:compositionslenses

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