Sigma 1.4x APO Tele Converter for Canon SLR Cameras

by Sigma

Product Details

• Shipping Weight: 1 pounds
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B0000501SK
• Item model number: 823-101
• Average Customer Review: 4.3 out of 5 stars  See all reviews (3 customer reviews)
• Discontinued by manufacturer: Yes
• Date first available at Amazon.com: November 24, 2003

Product Description

Amazon.com Product Description

Sigma's 1.4X APO teleconverter lens features gives you a high-performance optical design with five elements in three groups. It is optimized for use with long telephoto and telezoom lenses, and is ideally suited for use with the 70-200mm F2.8 APO EX HSM zoom lens. Using 10-pin electrical interfaces, there is no loss of autofocusing speed when these teleconverters are used with compatible HSM type lenses. This model is dedicated to Canon AF SLR cameras.

Product Description

CL) U) 1.4X CAN TELE EX DG APO

Customer Reviews

Most Helpful Customer Reviews

31 of 39 people found the following review helpful:

3.0 out of 5 stars Bargain alternative to Canon's 1.4x Teleconverter?, October 19, 2000

By 

Scott Flathouse (Pampa, TX USA) - See all my reviews

This review is from: Sigma 1.4x APO Tele Converter for Canon SLR Cameras (Electronics)

The Sigma APO teleconverter is a little more than half the price of the Canon teleconverter, and it boasts an APO element to reduce chromatic aberration. I've found this teleconverter to be reasonably sharp, but there is noticeable vignetting when I use it with my Canon 300mm f4. Sigma claims that the teleconverter is designed to be matched with their high-end tlelphoto lenses, and perhaps this is the case. However, I wasn't very satisfied with the performance of this teleconverter.

5.0 out of 5 stars Good for small increase still, great for sharp autofocus., December 17, 2008

By 

John Baumgart "forrester" (Minneapolis MN) - See all my reviews
(REAL NAME)   

This review is from: Sigma 1.4x APO Tele Converter for Canon SLR Cameras (Electronics)

This teleconverter just adds a little oomph to the 70-200 range at the same time it retains the sharp and quick focus/autofocus capability of the lens. Was shipped quickly!

5.0 out of 5 stars Superb Tele-converter!, March 9, 2008

By 

David Hammond (Pasadena, CA United States) - See all my reviews
(REAL NAME)   

This review is from: Sigma 1.4x APO Tele Converter for Canon SLR Cameras (Electronics)

I have been using this converter with my 100-300mm Sigma F4.0 with superb results. It has produced very sharp pictures with no detectable vignetting. In fact, you would be hard-pressed to see the difference between this combination and my prime Canon 400mm F5.6. Keep up the good work Sigma... highly recommended!!