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Pancake lens apertures

Started Apr 4, 2020 | Discussions thread
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markyboy81 Veteran Member • Posts: 4,778
Pancake lens apertures

Now that I'm the proud owner of the 16,20 and 30mm lenses, I was wondering why the 30mm gets the widest aperture of f2.0, whereas the 20mm is only f2.8 (and the 16mm inbetween)?

They are all roughly the same size, so would it have been technically feasible to have them all f2.0 If so was a decision to make the other two lenses slower borne out of cost? Or something else?

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