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

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Sigma 70–300 mm APO DG Macro
Sigma70-300 APO DG Macro.jpg
Maker Sigma
Key features
Ultrasonic motor No No
Short back focus No No
Image stabilization No No
Macro capable Yes Yes
Application Consumer Telephoto Zoom
Technical data
Type Zoom
Focal length 70–300mm
Aperture (max/min) f/4 – f/5.6
Construction 10 groups / 14 elements
# Diaphragm blades 9
Close focus distance 150cm / (95cm Macro mode)
Max. magnification 1:4.1 / 1:2(Macro mode)
Physical
Max. diameter 76.6
Max. length 122
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[edit]

  1. ^ a b c "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. ^ a b "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