Canon 2X Extender EF III + Canon EF 400mm f/2.8L IS III USM - CameraStuff Review

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Canon Extender EF 2x III 04a

Scores (no lens corrections)

RAW score

80

Resolution

74

Distortion

87

Vignet

82

Lat. C.A.

88

Scores (WYSIWYG)

JPG score

84

Resolution

–

Distortion

85

Vignet

85

Lat. C.A.

93

More

AF speed

80

Test camera

Canon 5DsR

Filter size (mm)

77

Camera mount

Canon EF