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

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 70–300 mm APO DG Macro
MakerSigma
Technical data
TypeZoom
Focal length70–300mm
Aperture (max/min)f/4 – f/5.6
Close focus distance150cm / (95cm Macro mode)
Max. magnification1:4.1 / 1:2(Macro mode)
Diaphragm blades9
Construction14 elements in 10 groups
Features
Short back focus No
Ultrasonic motor No
Lens-based stabilization No
Macro capable Yes
ApplicationConsumer Telephoto Zoom
Physical
Max. length122
Diameter76.6
Weight550
Filter diameter58mm

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. "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. "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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