Big and bad, good and little – Equivalence. It’s the bugbear of anyone who reviews Micro Four Thirds lenses. You are being conned says the incoming mail. Your f/1.4 lens is really an f/2.8. And your so called shallow depth of field is commensurate with f/2.8, too, not f/1.4. It’s an argument I’ve heard so many times and while factually true, is pointless and irrelevant. The only rational response is -so what?
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