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I have a number of black and white negatives which I’m scanning with my Nikon Coolscan III. I have to do this on another machine (not a Mac or PC) as the scanner interface is SCSI. I’m scanning them as gray scale images and saving as TIFFs.
When I look at the TIFF info on the other machine it says they’re gray scale. When I load them into PE2 on the Mac it gives them an Untagged RGB profile and thinks they’re colour images (which I find strange). If I then convert to grayscale PE2 gives them a ‘Dot Gain 20%’ profile.
Can someone explain to me the concept of ‘Dot Gain’ and whether it is better to leave the images as colour (with Adobe RGB profile attached) or grayscale? I haven’t tried printing any of them yet; I’d like to check this out first to reduce waste of expensive paper. The printer is an Epson Photo 950 attached to an iBook running OS X 10.1.5.
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Pete
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*** Email is pete -at- dawnsun -dot- net
When I look at the TIFF info on the other machine it says they’re gray scale. When I load them into PE2 on the Mac it gives them an Untagged RGB profile and thinks they’re colour images (which I find strange). If I then convert to grayscale PE2 gives them a ‘Dot Gain 20%’ profile.
Can someone explain to me the concept of ‘Dot Gain’ and whether it is better to leave the images as colour (with Adobe RGB profile attached) or grayscale? I haven’t tried printing any of them yet; I’d like to check this out first to reduce waste of expensive paper. The printer is an Epson Photo 950 attached to an iBook running OS X 10.1.5.
—
Pete
====
*** Email is pete -at- dawnsun -dot- net
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