Size comparison of FE 4/2470 on A7 vs Olympus 12-40 f2.8 on GX7

Started 10 months ago | Discussions thread
stevo23
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Re: apples and oranges
In reply to Dennis, 10 months ago

Dennis wrote:

stevo23 wrote:

Since the beginning of photography. The smaller the frame, the higher the resolution has to be and the tighter all the other parameters need to be. It's actually logical when you think about it.

And yet, they manage it in inexpensive lenses, suggesting that it is easier to do so in smaller lenses. Miniscule lenses on $200 digicams outresolve (in terms of lp/mm) expensive interchangeable lenses.

But I think the mixup is in what the person I replied to meant when he said he expects one lens to be "better". Initially, I interpreted it literally; that it's a better lens. But in the context of the discussion, I think he meant that the resulting images will be better. Semantics, maybe, but I think it's two different things. You can get results from a cheap kit zoom on FF that beat an expensive, fast lens on a smaller sensor, but I don't think people would translate that into the cheap lens being a "better" lens.

Wow, I have to admit that this subtly never occurred to me! So the $1200 4x5 lens which produces stunning images in it's format isn't able to resolve as many lines etc. as the $2400 Canon which produces a less stunning image. So the lens isn't as "good" in that respect. But the end result is "better".

So back to my original contention that backwards fitting larger format lenses to smaller frames isn't going to necessarily yield good results and this isn't therefore a good judge of lens quality.

This being said, I'm thinking the new FE ZA lenses would look better on an Olympus than many an  Olympus lens would. They're just very good all the way around.

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