On Jan 20, 2009, at 5:12:37 AM, shse100 wrote:
Repeated continued measurements of tis "bad" patch can change L value from 2 to 4 up and down, before i can "put" this patch between "neighbours". More "stable" repeated measurements can be achived by klicking to white area of paper before. Does Spectrocolorimeter Model #1005 hase some "memory" or some saturation?
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There is an inevitable "warmup" effect, which means any measurement should ideally be preceeded by at least one "test" measurement. When I am to lazy to do this any other way, I simply measure the patch I want to redo, back up with the left arrow key, and measure it again. Then I measure any other patches I wish to redo with a single measurement, as the device is now warmed up. I would not expect, after that first reading, to find futher readings varying as much as 2 L* unless it is a difficult media, and a very dark color.
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C. David TobieWW Product Technology Manager
Digital Imaging & Home Theater
Datacolor
CDTobie@...
www.datacolor.com/spyder3