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Canon EF Extender III 1.4X and EF Extender III 2X on Canon EF 300mm f/2.8L IS

Just published in DAP is my review of the new Canon Extender III 1.4X + 300mm f/2.8L IS and Canon Extender III 2X on the 300mm f/2.8L IS. This completes my review. See also the test pages on 135mm f/2L and the two 70-200mm zooms.

Actual pixels Canon 300mm f/2.8L IS + EF Extender III 2X @ f/11

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