Is it really neccessary to profile your scanner?

**Kirk Gittings** · 15-Feb-2006, 10:44

"Profiling your scanner has the unintended effect of clipping the gamut of the scanner to the gamut of the target."

Could someone explain this, because I profile my scanners and then sometimes scan in Prophoto for archiving. Yet there is a huge difference in gamut between scanning in Prophoto vs, Adobe RGB with a profiled scanner with the same IT8 target. What am I missing here.

**Michael Chmilar** · 15-Feb-2006, 11:18

Profiling your scanner has the unintended effect of clipping the gamut of the scanner to the gamut of the target.

But, I would think that if your target equals or exceeds the gamut of the material you are scanning, this is not a problem.

**Brian Ellis** · 16-Feb-2006, 11:33

"It is IMPOSSIBLE to profile for colour neg or BW..."

So why does Kodak make IT8 targets for color negative film?

**Kirk Gittings** · 16-Feb-2006, 11:52

Brian, Where? I have never seen them.

**julian_4860** · 17-Feb-2006, 09:42

Brian, so you can create custom means of handling the neg to pos conversion. this is not an icc profile. I have targets for my usual neg stocks for this reason

Julian

**Kirk Gittings** · 17-Feb-2006, 10:59

Seriously Brian where have you seen IT8's for Kodak color negs ? I have looked a few times and could never find any from any manufacturer.

**Kirk Gittings** · 17-Feb-2006, 13:01

"So why does Kodak make IT8 targets for color negative film?"

After a thorough search of the web, once again I can find 0 references to IT8 color negative charts by any manufacturer. Therefore Brian I assume you are mistaken.