Sigma 70-300mm f/4–5.6 APO DG Macro lens
 | |
| 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 in 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
[edit]- ^ a b c "70-300mm F4-5.6 APO DG Macro". Sigma Corporation. Retrieved 23 June 2013.
- ^ Andrews, Ian (September 2, 2005). "Sigma 70–300mm F/4–5.6 APO DG Macro Interchangeable Lens Review". EPhotoZine. Retrieved 2008-05-05.
- ^ a b "70-300mm F4-5.6 DG Macro". Sigma Corporation. Retrieved 23 June 2013.
- ^ Sigma AF 70–300mm f/4–5.6 APO DG macro — Test Report / Review, photozone.de, accessed 2008-05-19