Eye Resolution!

[Furball]

Hi all - I was wondering if anyone knows what the 'resolution' of the human eye is?

[Clanad]

Visual acuity or resolution is defined as 1/a where a is the response in x/arc-minute. When x is defined as a line pair, as is normally done in modern optics, the 1/a value is 1.7 under good lighting conditions.  The acuity = 1.7 when the light level is greater than about 0.1 Lambert.  The acuity of 1.7 corresponds to 0.59 arc minute per line pair.  So, there you have it...

[IndieSinger]

What's that in megapixels? :)

[Clanad]

Since pixels do not have a standard as to size, it would be impossible to tell unless the size were defined...

[IndieSinger]

OK I will define them as... 86 cubic centiletres squared.

[Clanad]

The thickenss of pixels is irrelevant to the question, additionally, correct me if I'm wrong, but centiliters is a measurement of volume not size, so the question is still unanswerable...

[IndieSinger]

OK sorry that was a silly joke.

What I meant was that you should define megapixels as 108 metric tonnes and 6 miles recurring.