On 6/21/2018 9:14 AM, Whisky-dave wrote:
On Thursday, 21 June 2018 10:51:55 UTC+1, Sandman wrote:
In article , Whisky-
dave wrote:

Jim-P:
In film cameras, ISO referrs to the sensitivity to light of the
emulsion. Manufacturers formulate different film emulsions with
different sensitivites tarding increased grain with increased
ISO speed. In a digital camera, presumably the sensor does not
adjust itself to have greater sensitivity. Or does it? So what
is happening in a digital camera when I choose a greater ISO
setting? Is more amplification being used?

Sandman:
Short answer: yup. ISO for film and "ISO" for digital sensor has
very little in common.

I thought they had quite a lot in common

Then you thought wrong.

I know I'm correct you have **** all idea.



I'll say this, my Minolta-IV-F-Light-Meter is dead nuts on both film and digital
when in the manual mode. Beats my Nikon D80's built in meter. Of course it's
essential for my 500 C/M and 4x5