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

Started Jun 15, 2014 | Discussions thread
texinwien Veteran Member • Posts: 3,326
Not what he says

Sergey_Green wrote:

texinwien wrote:

What does "the lens is stressed less" mean? Is that accepted optics terminology? Do you have some links to authoritative sources that talk about this in more detail?

I think he means that to record the same amount of detail with the same number of pixels the lens that is in front of the smaller pixels must be resolving better, than the lens that is in front of the larger pixels.

I think I'll wait to hear from Truthiness. He was talking about sensor size and enlargement factor. You're talking about pixel size and pixel count. These factors are not synonymous, and they shouldn't be confused as such.

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.

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?

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

Lesser quality in what respect?

As stated above.


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- sergey

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