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

Started 6 months ago | Discussions thread
Dennis
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Re: Why compare the larger M43 lens and not the one with the same range?
In reply to Lab D, 6 months ago

Lab D wrote:

As for understanding exposure think of lens apertures like this. A fat lady and a thin lady are laying on the beach. Who will get sun burnt faster? Answer: both will burn/tan the same despite the fat lady having 4x the skin area.

Why ?

Why think of exposure like that ?

You don't set your exposure settings to any arbitrary value that gets you sunburned. You set them to get the best compromise between depth of field, motion effects and noise.

"f/2.8 is f/2.8" as many like to parrot, but if it results in different photos, who cares ?

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