f/1.8 on m4/3, ASP-C, FF; are they the same?

Started Nov 1, 2010 | Discussions thread
baxters Veteran Member • Posts: 5,134
Re: f/1.8 on m4/3, ASP-C, FF; are they the same?

Yes, because the f1.8 number is basically obtained by dividing the focal length by the diameter of the lens elements. It doesn't care about the sensor size or type. You could be using an 8 inch wide daguerreotype glass plate and the f-stop is the same.

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Panasonic Lumix DMC-GM1 Olympus Zuiko Digital ED 70-300mm 1:4.0-5.6
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