Crop Factor, Low Light and Aperture with m4/3 lenses?

Started Jun 15, 2014 | Discussions thread
Sergey_Green Forum Pro • Posts: 11,993
I am confuced again ;) ?

texinwien wrote:

You've obviously confused them here, but there's no reason for me to believe that Truthiness has made the same elementary mistake in reasoning of which you're guilty.

Which reasoning was that?

That is the smaller pixels on a smaller area with "stress" the lens more, than the larger pixels on the larger area.

Do you think that the sizes of the image circles that the respective lenses and sensors are designed for play any role in this "stress" equation? If so, how would you describe the role they play?

The size of the pixels (not the image circle). Smaller the pixels the better the lens must be. I can see it on D800, some lenses are considerably better on it (when compared against 12MP cameras), whereas others are only marginally better (as few old wide open fast primes for example). That's what I thought he meant in his post.

thus the lens can be of lesser quality to achieve the same image quality.

Lesser quality in what respect?

As stated above.


Generally yes.

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- sergey

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