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I spy a fly



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TODAY'S online calendar picture is an amazing close-up shot of a fly on a leaf in a Granborough back garden.
Thanks to Julien Lucas of Granborough for today's fantastic picture, which was taken using a Macro lens.

Macro photography is close-up photography; the classical definition is that the image projected on the "film plane" (i.e., film or a digital sensor) is close to the same size as the subject. On 35 mm film (for example), the lens is typically optimized to focus sharply on a small area approaching the size of the film frame.

Most 35mm format macro lenses achieve at least 1:2, that is to say, the image on the film is 1/2 the size of the object being photographed. Many 35mm macro lenses are 1:1, meaning the image on the film is the same size as the object being photographed. Another important distinction is that lenses designed for macro are usually at their sharpest at macro focus distances and are not quite as sharp at other focus distances.

In recent years, the term macro has been used in marketing material to mean being able to focus on a subject close enough so that when a regular 6×4 inch (15×10 cm) print is made, the image is life-size or larger. This requires a magnification ratio of only approximately 1:4, more easily attainable by lens makers.

We are still welcoming your pictures, send them to us by clicking here.


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  • Last Updated: 12 May 2008 9:18 AM
  • Source: n/a
  • Location: Aylesbury
 
 
  

 
 

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