Kodak portra 160 question

adwb · 08-31-2012, 01:07 AM

has any one any comparative samples or know a location of any comparative samples of how much difference reducing iso from 160 to 100 makes to shadow areas with prortra 160?

LesDMess · 09-01-2012, 03:41 PM

Depending on what characteristic in particular you are looking for, this is my example . . .

adwb · 09-02-2012, 06:11 AM

Originally posted by LesDMess

Depending on what characteristic in particular you are looking for, this is my example . . .

very interesting, this just caused by altering the iso in the light meter setting is that correct or is it processing time that is causing the differnce?

tuco · 09-04-2012, 10:50 AM

It's a ~1/2 a stop. Do worry too much about it. It's not positive film. If you want to round off the ISO, 200 would do fine too.

08-31-2012, 01:07 AM	#1
adwb Veteran Member Join Date: Sep 2009 Location: Bristol UK Photos: Gallery Posts: 1,632	Kodak portra 160 question has any one any comparative samples or know a location of any comparative samples of how much difference reducing iso from 160 to 100 makes to shadow areas with prortra 160?

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09-01-2012, 03:41 PM	#2
LesDMess Pentaxian Join Date: May 2011 Location: Santa Cruz, CA Photos: Albums Posts: 2,348	Depending on what characteristic in particular you are looking for, this is my example . . .

09-02-2012, 06:11 AM	#3
adwb Veteran Member Join Date: Sep 2009 Location: Bristol UK Photos: Gallery Posts: 1,632 Original Poster	Originally posted by LesDMess Depending on what characteristic in particular you are looking for, this is my example . . . very interesting, this just caused by altering the iso in the light meter setting is that correct or is it processing time that is causing the differnce?

09-04-2012, 10:50 AM	#4
tuco Pentaxian Join Date: Jul 2009 Location: Seattle Posts: 7,830	It's a ~1/2 a stop. Do worry too much about it. It's not positive film. If you want to round off the ISO, 200 would do fine too.