Why do older camera lenses have faster F-stops?

Started Apr 14, 2013 | Discussions thread
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tkbslc
tkbslc Forum Pro • Posts: 10,453
It's "only" f2.0 because it's also a macro lens.

You are making a limited comparison.  In the specific case of Olympus, the 50mm prime is a macro lens.  There are very, very few macro primes that are f2.0, so it's actually a very fast lens.   If you look at any other system, there are plenty of f1.4 options and even some f1.2 options.

For the Olympus E mount, there is a Panasonic/Leica 25mm f1.4, which represents the 50mm FOV that your old lenses would have had on film.

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Panasonic Lumix DMC-GX7 Panasonic Leica DG Macro-Elmarit 45mm F2.8 ASPH OIS Panasonic Lumix G X Vario PZ 45-175mm F4.0-5.6 ASPH OIS Samyang 7.5mm F3.5 UMC Fisheye MFT Olympus M.Zuiko Digital ED 75mm F1.8 +3 more
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