Don't judge it based on what you see on screen. Send the converted file to
the lab for a print. The conversion will alter how the colors lok on screen
but when printed will, if your screen is setup right, print closer to the
unconverted file's colors. The purpose of the profile is to compensate for a
printer's innaccuracies. For example a print has a grey area, totally
neutral (A black and white print is a good example). All three color
channels have the same value when you put the cursor over any area of the
pic and see the numbers in the info palatte. The printer, however, shifts
greys toward green (this is a made up example, each device is different), so
converting to the machine's profile shifts the tones toward the opposite of
green (magenta) to compensate. This will produce a neutral BW print, even
though the converted file looked magenta on screen. So, don't judge the
conversion of screen..print it and see which looks best.
--
Chris Crawford
Fine Art Photography
Fort Wayne, Indiana
260-424-0897
http://www.chriscrawfordphoto.com My portfolio
http://blog.chriscrawfordphoto.com My latest work!
On 12/1/09 4:50 PM, "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
> I just did a test conversion and can see that it did pull the green down
> some.
>
> Chuck Norcutt
>
>
> Chris Crawford wrote:
>> Chick,
>>
>> Soft proofing doesn't really work well with RGB profiles, is it more
>> effective with CMYK press profiles because those presses lose a lot more
>> color range compared to what the monitor shows. When preparing files for an
>> RGB printer like a Fuji Frontier or other digital minilab, or for an inkjet
>> printer (injets are designed for RGB input despite using cmyk inks).
>>
>> Here's what you do: Make the image look the way you want in sRGB, then
>> convert to the printer profile you have using the 'convert to profile'
>> command. You'l probably want to do this using Perceptual rendering. Many RGB
>> output profiles give bad results using Relative Colorimetric. An easy test
>> is to take a file and convert it both ways and send both files to the lab
>> and see which looks closer to your screen. But I am betting on Perceptual.
>>
>> Save the converted file under a new name so you don't lose the original sRGB
>> version. When you save, DO NOT embed the profile....Fuji Frontiers don't
>> like to see an embedded profile. Then, send the converted file to the
>> printer. Your print should be pretty close if your screen is calibrated
>> right.
>>
>>
--
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