Sigma APO Tele Converters are dedicated to Sigma lenses such as the APO 70-200mm f/2.8 EX DG and APO 300mm f/2.8 EX DG. They increase the focal length by 1.4 or 2 times. By providing a longer focal length, they allow greater flexibility, which is useful for taking sports of nature photographs.
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1.4x EX DG Tele Converter The 1.4 EX is placed between the lens and the camera, and allows the photographer to use the 70-200mm f/2.8 lens as a 98-280m f/4 lens, and the 300mm f/2.8 lens as a 420mm f/4 lens; the high optical performance is maintained and the AF speed is not affected. Click here to see a list of compatible lenses.
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2x EX DG Tele Converter The 2x EX is placed in the same way and it allows the photographer to use the 70-200mm f/2.8 lens as a 140-400mm f/5.6 telephoto zoom lens, and the 300mm f/2.8 lens as a 600mm f/5.6 ultra telephoto lens. Click here to see a list of compatible lenses.
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| Main Specification | 1.4x |
2x |
| Lens construction | 5
elements in 3 groups |
6
elements in 5 groups |
| Focal length | 1.4x
that of a master lens |
2x
that of a master lens |
| Aperture coupling range | F2.8
- F32 |
F2.8
- F32 |
| Reproduction ratio | 1.4x
that of a master lens |
2x
that of a master lens |
| Dimensions | 68.5
X 19.5mm |
68.5
X 52mm |
| Weight | 143g
(5oz.) |
234g
(8.3oz.) |
| SRP | £229.99 |
£279.99 |
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Dimensions and weight based on the Nikon mount. |
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