Kotsinadelis, Peter (Peter) wrote:
Henning Wulff wrote:
There is no definitive equivalent focal length of the human eye, related to angle of view.
As a previous poster has pointed out, the eye is not a device like a camera with a set format. It is part of the eye/brain/eye muscle system which all work together. The eye has a very small zone of high resolution (less than the angle of view of a 300mm lens), with a very wide angle of view that is very low resolution. To get a wider high resolution image the eye moves around a lot, scanning the scene. On top of that, focus is automatic for the high resolution center of vision, and the sensitivity is extremely adaptable, using different types of sensors depending on the light level. The brain puts all of this together, correcting the various types of optical aberrations (including linear distortion and light falloff) that the eye produces into the bargain.
Cameras are not eyes, and in the areas of the eye's and brain's competence lag a very great distance behind. Cameras help hold an image, but are very hard to hold up as equivalent in a here-and-now, super versatile optical system.
Apples and oranges. Or meteorites and quasars.
------------------------------------------------------------------------
It is not scientific but try looking at something and then use a 24mm
lens and you will see approximately the same view including periphery.
On a 35mm camera, you get about the same object size with your eye as
you do looking through a lens of about 55-60mm. That is all I am saying.
You can argue it, but this is what I have learned over the years. So I
am simply commenting.
*
Hmmm, this sounds like either using a zoom lens or changing primes.
Your brain changes what you see without a camera. Changing the focal length does the same thing.
Bob
* **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
