Sigma 1.4x DG EX APO Teleconverter for Canon

Model #824101

USA Version
Sigma 824101 1
Sigma 824101 1
Sigma 824101 2
Sigma 824101 3
Sigma 824101 4
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General Information

Elements/Groups 5/3
Dimensions 2.7 x 0.75" (68.5 X 19.5mm)
Weight 5 oz (143 g)
User Reviews
Slr gear.32823196
27 September 2013

I use this TC with the Sigma 150mm f2.8 Macro (pre-OS) on a Nikon, and the results are outstanding. Even with the D800 the ensamble is sharp enough at full aperture ("f4"), and a razor when stepped down. Almost no decay in the bokeh and absolutely no CA in any condition. But, but...

  • +

    Awsome with 150mm Macro

  • -

    No AF over f5.6 (Nikon), de facto only for Sigma lenses

11 June 2014

Bought this to work with a Sigma 70-200mm OS f2.8 and does exactly what it should do. Maybe a tiny loss if IQ but overall not enough for me to worry about.

  • +

    Durable, Easy to Use, Lightweight

2 June 2014

Attached between my A99/A77 and a Sigma 70-200mm EX DG HSM APO, AF is well maintained and only a pixel peeping loss in sharpness. Impressed.

  • +

    Durable, Easy to Use, Lightweight, Sharp

Slr gear.32823196
18 September 2007

A Very Good TC for the $$$. On my 70-200 it is as sharp as without the TC. I didn't notice any degradeing of speed or IQ. The colors are still vibrant and the contrast is still good. Sigma scores again.

  • +

    Sharp, Fast, good construction

  • -


Product Highlights
  • For Canon EOS
In The Box
  • Sigma APO Teleconverter 1.4x EX DG for Canon EF
  • Front & Rear Lens Caps
  • Soft Case
  • Limited 1-Year North and South America Warranty
  • Limited 3-Year U.S.A. Warranty Extension
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