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Not a flame war. A legitimate lens comparison

Started Jul 21, 2015 | Discussions thread
TheManWhoWas
TheManWhoWas Contributing Member • Posts: 539
Fundamentally flawed comparison
13

Basically, if your criteria for choosing a camera is whether it takes exactly equivalent pictures to a FF camera, then buy a FF camera. "Equivalence" has shown that the same "light gathering" lenses are much the same size on every system because they are, um, equivalent.

But anyone buying a smaller sensor camera knows they are trading off some IQ in exchange for a smaller overall package. So we can use our tiny 1.8 primes that don't have equivalents on larger systems. And no they don't give the same DOF as a 1.8 of an "equivalent" focal length on a larger system, but so what?

Trying to build an MFT system that exactly matches a FF system in every respect is just silly.

Oh, and people need to stop using "fast" when talking about DOF equivalence. A 1.8 is a 1.8 when it comes to "speed" (like looking through a viewfinder on a DSLR) but obviously they all vary with focal length when it comes to DOF, and smaller focal lengths give more DOF, and smaller sensor systems tend to involve using smaller focal lengths. That's all the difference is.

 TheManWhoWas's gear list:TheManWhoWas's gear list
Olympus E-510 Olympus E-M1 Olympus Zuiko Digital 25mm 1:2.8 Pancake Olympus Zuiko Digital ED 14-42mm 1:3.5-5.6 Olympus Zuiko Digital ED 70-300mm 1:4.0-5.6 +7 more
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