Mike Chaney's Tech Corner

Mike's Software => Profile Prism => Topic started by: Mach1 on August 30, 2009, 01:17:39 PM



Title: PRISM TARGET VS. PRINTER TARGET
Post by: Mach1 on August 30, 2009, 01:17:39 PM
I recently came across my copy of Profile Prism v. 2.5. Ihad used it previously with great results, but it's been a while.

The best I have been able to achieve scanning my Profile Prism Target is:
 
Exposure:  Properly Exposed (235)
White Balance: Accuracy = 4% Exellent
Light Variance: 10% Excellent
Warning 13 patches marked with X are at min/max brightness
Shadow Detail:  No gray patches clipped

I think that's pretty good, but the printer target I scanned along side is:

Exposure 249
Llight variance: 120 are at min/max brightness and some are clipped


Do I need to be concerned for the stats for the printer target, or do I just concentrate on getting the Prism Target scanned well?


Title: Re: PRISM TARGET VS. PRINTER TARGET
Post by: rayw on November 05, 2009, 11:23:51 PM
If you're still here.... then maybe clean the scanner glass, make sure you have some 'black backing', let scanner warm up (do two or three scans, and use the last one, ensure you select the correct corners accurately. You can zoom in on the results, to check the selected areas (white squares) are not picking up the black borders of the individual squares - make sure target is printed the correct size helps, but not essential, afaik, but make sure all the inbuilt printer profiling stuff is turned off. If you get a high light variance, it may work better if you reverse the positions of the targets, or possibly try a different scanner. Of course, the printer may not be printing properly - blocked jets, whatever. Did it actually attempt to produce a profile?

Best wishes,

Ray

PS - hope you never saved the image as a gif ::)

pps there are two targets you can print - one bright - try the other target - it depends where the 120 'X's are.