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Sigma 2x EX DG APO Tele-Converter for Pentax DSLRs
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Sigma 2x EX DG APO Tele-Converter AF for Pentax AF Cameras

SKU: SG2XPXAF
(2)

This item is no longer available.

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Reviews about this item

Review Summary

2009-05-13T21:00:00

Rated 2 out of 5

Regretfully returned

I made the decision to purchase after satisfying results with its little brother, the 1.4x EXDG. I was rather surprised and disappointed at the performance of this version. While I expected some image degradation, the very high IQ of the K20D plus some sharpening in Lightroom should have compensated, IMO, but it did not.

MultiMediaMan

2008-12-28T19:00:00

Rated 3 out of 5

Not compatible with Sigma 70-200mm lens!

I bought this to use with a Sigma 70-200mm f/2.8 EX DG HSM (and a few other initials I forget). After much testing and no acceptable results, I found a page on the Sigma Japanese site that says that it is not compatible with my lens, but is with the non-HSM version - I hadn't checked the initials on the lens compatibility list close enough. It may be a fine product, but it confused my camera's light sensor and didn't fit any of my other lenses, so I returned it.

Jay D.

Sigma 2x EX DG APO Tele-Converter for Pentax DSLRs Specifications

About Sigma 2x EX DG APO Tele-Converter for Pentax DSLRs

The dedicated 1.4x APO Teleconverter features a high performance 5 element/3 group optical design, and it is optimized for use with long telephoto and telezoom lenses.

The high performance optical characteristics of these teleconverters maintain the optical performance of the compatible lenses with which they can be used.

Sigma APO Tele Converter 1.4x and 2x are dedicated Tele Converter lenses, which should be used only with the listed lenses.
The 2X Convertor will fit the following lenses
180mm f/3.5 APO MACRO EX - MF
300mm f/2.8 EX - AF
300mm f/4.0 APO MACRO - MF
400mm f/5.6 APO MACRO - MF
500mm f/4.5 APO EX - MF

70-200mm f/2.8 EX - AF
50-500mm f/4-6.3 APO - MF
100-300mm f/4 - MF
Will also fit the following Orginal Pentax AF Lenses
200mm f2.8 - AF
300mm f2.8 - AF
600mm f4.0 - MF

On the lists, the lenses marked "AF" will retain auto focus operation when used with a Tele Converter. The lenses marked "MF can only be used for manual focus.

Please refer to the manufacturers Teleconverer Matching List for an updated compatability chart.
http://www.sigma-photo.co.jp/english/acc/condaitr.htm

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