Sample Images: Sigma APO Tele Converter 1.4x EX DG

(All images copyright Photography Online, Inc. & SLRgear.com)

Still Life tests, Canon 1Ds Mark III body (full-frame sensor)

Lens Only
With 1.4x Teleconverter

VFA Target, Canon 1Ds Mark III body (full-frame sensor)

Lens Only: 120mm f/2.8

Upper Left

Center
With Extender: 168mm f/4

Upper Left

Center
Lens Only: 120mm f/8

Upper Left

Center
With Extender: 168mm f/8

Upper Left

Center
 
Lens Only: 193mm f/2.8

Upper Left

Center
With Extender: 289mm f/4

Upper Left

Center
Lens Only: 193mm f/8

Upper Left

Center
With Extender: 289mm f/8

Upper Left

Center
 
Lens Only: 300mm f/2.8

Upper Left

Center
With Extender: 420mm f/4

Upper Left

Center
Lens Only: 300mm f/8

Upper Left

Center
With Extender: 420mm f/8

Upper Left

Center