The Sigma 2x EX DG APO Tele Converter (also known as a tele-extender) will multiply the focal length of the existing lens by 2x, and will cut back the amount of light by 2 f/stops. For example, using a 2x teleconverter with a 300mm lens will effectively increase the focal length to 600mm. A lens set to f/2.8 will now be f/5.6.
Note: Sigma APO Tele Converter 1.4x and 2x are dedicated teleconverter lenses. Due to the high optical quality of this teleconverter, this item will only fit and work with a select list of lenses. Please click here for a compatibility chart of all compatible lenses.
| Elements/Groups | 6/5 |
| Dimensions | 2.7 x 2" (68.5 x 52mm) |
| Weight | 8.3 oz (234 g) |
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Comments about Sigma 2x EX DG APO Teleconverter:
A relatively inexpensive way to get that 'extra reach' that's so often desirable. Good optical quality and good 'build quality'. The only downside is that like all 2x TCs, it costs you about 2 f-stops of light.
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