Its very possible that they might update the lens coatings and tweak minor things. I am in doubt of anything major. The 18-55 was updated to a ver II, with only minor changes, which no one could detect except for the paint job.
It does make sense that canon would update the coatings on all their "L" lenses, having different coatings on different lens elements is a waste of factory space and money. Keeping two very high tech processes going is going to be expensive and may even slow production down.
It does make sense that canon would update the coatings on all their "L" lenses, having different coatings on different lens elements is a waste of factory space and money. Keeping two very high tech processes going is going to be expensive and may even slow production down.
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