Sigma 1.4x APO Tele Converter for Canon SLR Cameras
by Sigma Corporation
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Customers in the UK,
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for British Pounds
Digital Photo Product Details
Manufacturer: Sigma CorporationModel: 823-101
Product features:
- Teleconverter lens for Pentax SLR cameras
- Increases the focal length by the power of 1.4
- Multi-layer lens coating and lens design
- Reduces flare and ghosting
- Includes lens case
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Digital Cameras Photo Reviews of Sigma 1.4x APO Tele Converter for Canon SLR Cameras
Customer Review: Bargain alternative to Canon's 1.4x Teleconverter?
Summary: 3 Stars
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.
Description of Sigma 1.4x APO Tele Converter for Canon SLR Cameras
CL) U) 1.4X CAN TELE EX DG APOSigma'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.
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