Sigma 70–300mm f/4–5.6 APO DG Macro lens

Sigma 70–300 mm APO DG Macro
Maker Sigma
Technical data
Type Zoom
Focal length 70–300mm
Aperture (max/min) f/4 – f/5.6
Close focus distance 150cm / (95cm Macro mode)
Max. magnification 1:4.1 / 1:2(Macro mode)
Diaphragm blades 9
Construction 14 elements / 10 groups
Features
Short back focus  No
Ultrasonic motor  No
Lens-based stabilization  No
Macro capable  Yes
Application Consumer Telephoto Zoom
Physical
Max. length 122
Diameter 76.6
Weight 550
Filter diameter 58mm

The Sigma 70-300mm F4-5.6 APO DG Macro lens is a consumer-level, telephoto zoom lens made by Sigma Corporation.[1] Different versions of this lens are produced that work with cameras from Canon, Nikon, Pentax, Konica Minolta, Sony and Sigma. Additionally, Olympus' 70–300 f/4–5.6 lens for Four-Thirds has the same optical design and specifications as this lens. The lens is packaged with a lens hood.

Sigma's APO designation signifies an apochromatic lens that uses low dispersion glass to minimize chromatic aberration.[2] The APO version has a red ring on the end of the lens body to distinguish it from the non-APO version of the lens, the Sigma 70-300mm F4-5.6 DG Macro.[3]

This lens has 14 elements in 10 groups including two special low dispersion glass elements in the front lens group, and one in the rear lens group.[1] The non-APO version has only one such element in the rear.[3]

An additional feature to this lens is a macro option between 200–300mm.[4] The minimum focusing distance between 200 and 300mm is 95 cm (37.4 inches). It is enabled by a manual switch and provides a maximum magnification of 1:2.[1]

References

  1. 1 2 3 "70-300mm F4-5.6 APO DG Macro". Sigma Corporation. Retrieved 23 June 2013.
  2. Andrews, Ian (September 2, 2005). "Sigma 70–300mm F/4–5.6 APO DG Macro Interchangeable Lens Review". EPhotoZine. Retrieved 2008-05-05.
  3. 1 2 "70-300mm F4-5.6 DG Macro". Sigma Corporation. Retrieved 23 June 2013.
  4. Sigma AF 70–300mm f/4–5.6 APO DG macro — Test Report / Review, photozone.de, accessed 2008-05-19
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