04-25-2012, 08:47 PM
[quote name='backcountryskier' timestamp='1335384354' post='17766']
I was wondering about this the other day.
Why does the human eye not have c/a? I tried looking out of the corner of my eye towards a high-contrast edge, and I couldn't see any.
The eye has a simple design. It does not have high refractive index materials, no positive-negative doublets, or anything like that.
Anyone have an idea?
[/quote]
It may be to do with analogue post-processing, refined over many years!
CA correction is not so difficult, just think if the brain can invert/reverse the image from the retina in real time then it can do other tricks too. The brain does concentrate on the 'sweet spot', where CA will be lowest, sfter all
Best wishes
(sorry - double-hit key or something)
I was wondering about this the other day.
Why does the human eye not have c/a? I tried looking out of the corner of my eye towards a high-contrast edge, and I couldn't see any.
The eye has a simple design. It does not have high refractive index materials, no positive-negative doublets, or anything like that.
Anyone have an idea?
[/quote]
It may be to do with analogue post-processing, refined over many years!
CA correction is not so difficult, just think if the brain can invert/reverse the image from the retina in real time then it can do other tricks too. The brain does concentrate on the 'sweet spot', where CA will be lowest, sfter all
Best wishes
(sorry - double-hit key or something)