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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.

Lenses that can be used with Extender EF1.4X III and EF2X III

Usable lenses: Lens Focal Length & Maximum Aperture EF 1.4 X III EF 2 X III EF 135mm f/2L USM 189mm f/2.8 270mm f/4 EF 180mm f/3.5L Macro USM 252mm f/4.5 360mm f/6.7 EF 200mm f/2.8L USM 280mm f/ 4 400mm f/5.6 EF 200mm f/2.8L II USM 280mm f/4

Specifications for the EF1.4X III and EF2X III Extenders

Major Specifications Lens construction: EF 1.4 X III : 7 elements in 3 groups EF2X III: 9 elements in 5 groups

What is the Maximum Aperture with the EF 2x III Extender

When the EF 1.4x II is attached, the lens maximum aperture will be smaller (darker) by 1 stop. The camera will compensate the exposure automatically.

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.

EF1.4x II Extender : What are the parts and controls - nomenclature?

EF 1.4x II Extender : What are the parts and controls - nomenclature?

What lenses are compatible with the EF 1.4x III and EF 2x III extenders?

Please see the following chart for lens compatibility with the EF 1.4x III and EF 2x III extenders .

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

How to mount and dismount the EF 2x III Extender

Conditions in which Hybrid CMOS AF III operates in combination with Contrast AF (EOS REBEL T6S / EOS 760D)

EF14mm F2.8L USM EF 24mm F 1.4 L USM EF100mm F2.8 Macro *

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