ISO
Jan 22, 2014 00:34:59 #
This may be a weird question but anyone know what ISO equates to the human eye?
Jan 22, 2014 00:37:42 #
Jan 22, 2014 02:06:20 #
Jan 22, 2014 02:13:31 #
KlausK wrote:
It's the same thing, call it what you will. ;-)
SS
Jan 22, 2014 02:22:11 #
SharpShooter wrote:
It's the same thing, call it what you will. ;-)
SS
SS
Really?
:shock:
Jan 22, 2014 03:17:14 #
St3v3M wrote:
All of them and more http://www.cambridgeincolour.com/tutorials/cameras-vs-human-eye.htm
But St3v3, what ISO is equivalent to the human eye???
Thanks for that link, I'll be studying that for the next week.
Jan 22, 2014 03:50:39 #
I doubt there is a 'real' answer to the question. ISO/ASA was established as a standard to determine the light sensitivity of film emulsions and now digital sensors. The human eye switches from color to b/w at low light and it does have an aperture but no shutter speed and the whole combination is deteriorating with age ... Beyond that the 'human ISO optical nerves' appear to be quite adaptive with variable settings. We have our 'ND filters' (= the hand above the eye brows to block the sun or those cool sun glasses/shades) and our eyes adapt to lower levels of light over time (low red lights help with this process in submarines). If the time is too short we are like deer in the headlights - as blind as a bat.
Jan 22, 2014 11:09:01 #
ASA American Standards Association
ISO International Organization for Standardization
These according to Wikipedia. ASA is now ANSI American National Standards Institute.
Essentially the U.S. went international with film speed standards. The ASA and ISO ratings are identical.
ISO International Organization for Standardization
These according to Wikipedia. ASA is now ANSI American National Standards Institute.
Essentially the U.S. went international with film speed standards. The ASA and ISO ratings are identical.
Jan 22, 2014 11:13:58 #
KlausK wrote:
Inbetween ASA and ISO there was DIN when the change to something else it will probably be designated WGAS
Jan 22, 2014 11:36:53 #
authorizeduser wrote:
This may be a weird question but anyone know what ISO equates to the human eye?
What kind of human eye? New or old? With age the human eye changes. Many people see less in the dark when they get older than when they were young, focus and sharpness becomes a problem also with age.
Jan 22, 2014 11:42:34 #
OK, Boberic, so DIN is the German Institute for Standardization, equivalent to ANSI and both are members of ISO. But WGAS? Closest I can find is who gives a s***, which is where this thread is headed, if that's what you meant. :XD:
Jan 22, 2014 11:49:26 #
OddJobber wrote:
OK, Boberic, so DIN is the German Institute for Standardization, equivalent to ANSI and both are members of ISO. But WGAS? Closest I can find is who gives a s***, which is where this thread is headed, if that's what you meant. :XD:
:thumbup: :thumbup:
Jan 22, 2014 12:06:43 #
OddJobber wrote:
OK, Boberic, so DIN is the German Institute for Standardization, equivalent to ANSI and both are members of ISO. But WGAS? Closest I can find is who gives a s***, which is where this thread is headed, if that's what you meant. :XD:
Yes, but Odd, wgas, is a standard that's used here, universally on the Hog, a lot. :lol:
SS
Jan 22, 2014 12:43:45 #
Jan 23, 2014 10:12:46 #
authorizeduser wrote:
This may be a weird question but anyone know what ISO equates to the human eye?
I agree with St3v3m... 'all of them'. Any camera you study will lead to one conclusion... they are trying to make something as efficient as the human eye. We're close, but still have a way to go. When they figure out a 'brain' to install behind the 'eye'... we're close, with 'auto', etc. but.. well, you get the point.
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