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

Started Feb 6, 2014 | Discussions thread
forpetessake Veteran Member • Posts: 4,892
Re: apples and oranges

technic wrote:

forpetessake wrote:

viking79 wrote:

I think ease of design has more to do with field of view and entrance pupil size (focal length / f-number). The easiest lens designs I have seen which are very good are large format lenses. They are very simple lenses and don't need very high resolution (since the sensor size, film, is measured in inches).

I think in general smaller sensors are harder to design lenses for, as you have to start getting excellent performance at very large apertures to make them any good.

Very true. If equivalent lenses had the same or lower production cost/spec then smaller sensors were the winners. But the reality is that by increasing the sensor size the production cost/spec for equivalent lenses goes down.

Of course NOT; what would a MF equivalent of the Sony 4/24-70 cost?

You mean 48-140mm f/8 lens? Likely the same production costs. The question is whether there will be demand.

What would the FF version of a f/2.8 25-600mm equiv. superzoom lens cost?

What superzoom? The one with 5.6 crop factor? I.e. 25-600mm f/16 FF lens? -- very cheap, but they wan't manufacture it due to zero demand.

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