Archive for: EF 400 f/4 DO

Patent: Supertelephoto DO Lenses With Macro Features

Patent: Supertelephoto DO Lenses With Macro Features

400mm, 600mm and 800mm DO Lenses
Patents have shown up showing new DO optical formulas with 2:1, 1:1 and 1:4 macro functions.

Adding macro functionality to super telephoto lenses would be a pretty cool feature. It’s also good to see DO patents continue to show up, it’d be nice to see new DO lenses.

Read the patent here

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