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CMS-XML Lenses that can be used with Extender EF1.4X III and EF2X III
Usable lenses: EF 300 mm f /2.8L IS II USM 420 mm f / 4 600 mm f / 5.6 EF 400mm f /2.8L IS II USM 560 mm f / 4 800mm f / 5.6 EF 500mm f /4L IS II USM 700 mm f / 5.6 1000 mm f /8 EF 600 mm f /
CMS-XML What is the Maximum Aperture with the EF 2x III Extender
Please note that if the maximum effective aperture falls below f / 5.6 , AF will not be possible
CMS-XML Lens Specifications with the Extender EF 1.4x II/III or EF 2x II/III
Lens Specifications with the Extender EF 1.4x II /III or EF 2x II /III
CMS-XML The difference between the current Canon EF Extenders, EF 1.4x III and the EF 1.4x II
The difference between the current Canon EF Extenders, EF 1.4x II and the EF 2x II , and the previous versions.
CMS-XML EF 2x III Extender : What are the parts and controls - nomenclature?
1. Lens mount index (on top) 2. Lens mount index (on camera) 3. Lens release lever 4 . Electrical contacts Rubber ring
CMS-XML Specifications for the EF1.4X III and EF2X III Extenders
Major Specifications EF1.4X III: 72.0 dia. x 27.2 mm / 2.8 x 1.1 inch
CMS-XML How to mount and dismount the EF 2x III Extender
CMS-XML What is the Maximum Aperture with the 1.4X III Extender
When the EF 1.4x III is attached, the lens maximum aperture will be smaller (darker) by 1 stop. The camera will compensate the exposure automatically.