 Sigma macro 50mm lens - Features
The Sigma macro 50mm F2.8 EX DG lens has a minimum focusing distance of 18.9cm and is capable of true macro photography with a maximum magnification of 1:1. Experience the en- joyment of real life-size macro photo- graphy. The Sigma macro 50mm EX DG lens is equipped with a "Focus Limiter Switch" that limits the auto focus range, allowing the camera to focus faster. This Sigma macro lens has a minimum aperture of f45 (for Sigma, Canon and Konica Minolta mounts) which produces a tremendous depth of field. A screw-in hood is included, for convenient use of circular polarizing filters. It is also possible to attach a 72mm filter in front of the lens hood. This lens has an equivalent field of view of 85mm on a digital SLR camera (when used with the Sigma SD10).
Sigma macro 50mm F2.8 EX DG lens specifications:
- Focal Length: 50mm
- Minimum Aperture: F32
- Lens Construction: 10 Elements in 9 Groups
- Angle of View: 46.8°
- Number of Diaphragm Blades: 7pcs
- Minimum Focusing Distance: 18.9cm
- Maximum Magnification: 1:1
- Filter Size: 55mm
- Lens Hood: Screw-in Type
- Dimensions: Max. Diameter 71.4mm x Length 64mm
- Mounts (AF): Sigma, Canon, Nikon, Pentax, Minolta
- Weight: 315gr.
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Sigma macro 50mm F2.8 EX DG lens launch : The Sigma macro 50mm F2.8 EX DG lens incorporates the very latest optical technology. The new advanced Sigma 50mm EX DG lens design corrects various aberrations and is specially coated to get the best color balance whilst cutting down flare and ghost caused by digital SLR cameras. It provides the utmost correction against transverse chromatic aberration which is a serious problem for digital SLR cameras. The Sigma macro 50mm F2.8 EX DG has a "floating mechanism" which enables to photograph objects precisely not only at life-size reproduction but also at infinity. This mechanism minimizes the fluctuation of aberration at different shooting distances and offers an excellent performance.
