CGarchitect.com - View Single Post - Exposure expert needed!! Damn mrPhotographic Exposure

daveb867 · June 26th, 2008

Right

This is really confusing me.

I am currently dialling in exposure values for SS, f-stop and ISO.

Here's an example for a daylight interior

ISO 100, f-stop 16, Shutter 1 = EV 8
ISO 50, f-stop 16, Shutter 2 = EV 8

Ok so theoretically these should both give the same exposure right??? Same EV Values.

However the one with ISO 100 is far brighter even though no other settings were changed??

Please can someone explain why??

June 26th, 2008	#1 (permalink)
daveb867 Veteran Member Join Date: Aug 2006 Location: Manchester Age: 22 Posts: 784 Name: Dave Buckley	Exposure expert needed!! Damn mrPhotographic Exposure Right This is really confusing me. I am currently dialling in exposure values for SS, f-stop and ISO. Here's an example for a daylight interior ISO 100, f-stop 16, Shutter 1 = EV 8 ISO 50, f-stop 16, Shutter 2 = EV 8 Ok so theoretically these should both give the same exposure right??? Same EV Values. However the one with ISO 100 is far brighter even though no other settings were changed?? Please can someone explain why??