burkphoto wrote:
The equivalence referred to is the depth of field. If you maintain constant field of view when switching from full frame to Micro 4/3, then you willuse lenses that are HALF the focal length. When that is so, a 25mm f/1.7 normal lens on m43 has the light gathering effect of f/1.7, but it has the depth of field you would get with a 50mm lens set to f/3.5 on a full frame camera.
There are trade-offs to every camera platform. Micro 4/3 provides deeper depth of field for a given FIELD OF VIEW. Full frame provides shallower depth of field for a given field of view. Whether it's a benefit or detriment in either case depends on the subject matter and the photographer's preference and knowledge.
While many photographers like shallow depth of field so they can separate subject from background and foreground, many others find that look unnatural and disorienting. They prefer deep depth of field, especially for landscapes, architecture, some product photography, and some photojournalism.
"Best" is always relative to personal needs, wants, hopes, dreams, desires, and willingness to compromise on certain points. The overall perfect camera for all photographers does not exist, but perfect cameras exist for some of us and for some use cases.
There is always someone who does not understand that point and insists that the image resolution and low light ability and shallow depth of field of full frame gear are the only things that matter, and that they should matter universally. But that is not the case! Sometimes you want to travel light, get more depth, not less, and not have to spend computer power on 61MP files that are going to be printed to 8x10 and smaller, or simply posted on web sites.
The equivalence referred to is the depth of field.... (
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Pretty sure most here agree on all of the above...