My really dumb question of the day ...

Our eyeballs are lenses, I guess one could argue. My dumb question of the day is what is the relative aperture value of the human eye?

The reason I ask is because my 35mm on the 5D2 sees a similar range of field as my eyes see. If I wanted to accurately represent what my eyes see via camera and lens, what aperture would setting would most closely compare to our eyesight?

Thanks for putting up with me!

dave

According to Wikipedia

http://clarkvision.com …etail/eye-resolution.html

Nathan wrote in post #13400448
According to Wikipedia

Thank you Nathan. Eyeballs would be about f/8 during good daylight. Good deal.

dave

Here's one of my old questions: Human Eye and Noise
https://photography-on-the.net/forum/showthre​ad.php?t=558516

I wish we had a faster shutter speed with our eyes... then we can probably see the path of a high speed projectile.

calvinjhfeng wrote in post #13401374
I wish we had a faster shutter speed with our eyes... then we can probably see the path of a high speed projectile.

Chances are it's actually seen. Our conscious brain's just incapable of processing that data.

we just have to upgrade our processor to type V then.

jwcdds wrote in post #13401386
Chances are it's actually seen. Our conscious brain's just incapable of processing that data.

To see requires our eyes and brain. Without the processing of that information, light is just passively transmitted through our eyes no differently than through a camera lens detached from the body or with the body turned off.

Nathan wrote in post #13401897
To see requires our eyes and brain. Without the processing of that information, light is just passively transmitted through our eyes no differently than through a camera lens detached from the body or with the body turned off.

Actually, it's not even that.. a camera is just the eye.

A camera has no brain to process the image, digics and expeeds don't count, they just process the data into a savable file.
We then look at the file and our brain processes what the eye sees into an image in our mind - this is why 10 people seeing an image see different things, and why some rave over it and others go 'meh'.

It becomes a debatable point - is the image on a hard drive/flash drive an image until our brain processes it? If no one sees it, it is a photograph? Maybe, Yes, it's a photo.. now is it a picture or an image or just data?

i think a lot of confusion is that the 50mm is seen as the "normal" lens on 35mm even though it doesnt show what we see, it represents the perspective of objects but not the FOV.

because we have 2 eyes thats what makes it tricky and that is why there is no lens that produces the same perspective and FOV that we actually see. what we see is like 2 "normal" focal length lens panoramic.

Nathan wrote in post #13401897
To see requires our eyes and brain. Without the processing of that information, light is just passively transmitted through our eyes no differently than through a camera lens detached from the body or with the body turned off.

Don't know. I once dated a girl who had photographic memory. As in how old movie theaters used to display these silly movie facts and tid-bits.

I tested her once, letting her see the screen for less than 2 seconds, covered her eyes and had her recite what she "saw".

It was a paragraph probably ~50 words. She recited every... single... word that was shown on the screen. She practically read it off her memory as I was still reading the text.

So with that, I'm a firm believer what's seen is seen. Whether the average brain knows how to recall that data consciously is another thing.

jwcdds wrote in post #13402466
So with that, I'm a firm believer what's seen is seen. Whether the average brain knows how to recall that data consciously is another thing.

I don't think you get the basis of what I'm saying. Recollection is a completely different topic. What we're sort of discussing is really the speed of light and the speed of thought.

If I ever need eye surgery I'm going to ask for the f/1.4L lenses. No red ring though, might look a little odd when someone looks at your eyes.

yourdoinitwrong wrote in post #13402733
If I ever need eye surgery I'm going to ask for the f/1.4L lenses. No red ring though, might look a little odd when someone looks at your eyes.

Oh, I've had red rings around my eyes many, many times, back in my youthful days and nights!