QTR-Quadtone RIP

I have noticed some major differences between CS3 printing on 10.5.8 and CS5 printing on 10.6.3 with the same custom grayscale profile built from a target printed from CS3 10.5.8. Everything is being run on QTR 2.7.0.0

The data below is "validation" data. ie: It is the same target file used to create the ICC profile printed again with the correct ICC applied but in both different environments.  I am using PerceptualBPC-Off but RelColBPC-On is exactly the same.

I've included the L data from the patch readings in an xls doc on this email. 

Here is a copy of the same xls doc in txt.

----------------------------------------------
Enhanced Matte K7, Epson 4000, 80 patch target, printed with same custom G. ICC.

Sent through print server running 10.5.8, QTR v 2.7	
BEGIN_DATA	   LAB_L 10.6.3 / CS5	LAB_L 10.5.8 / CS3	L difference.
1	96.43647	96.83012	-0.39365
2	95.07405	96.00604	-0.93199
3	94.18826	95.56627	-1.37801
4	93.04338	94.7413	-1.69792
5	92.25832	94.15094	-1.89262
6	90.73803	93.28315	-2.54512
7	89.79706	92.80927	-3.01221
8	88.6991	91.95293	-3.25383
9	87.15856	91.32058	-4.16202
10	86.67193	90.7049	-4.03297
11	85.42249	89.73593	-4.31344
12	84.24188	89.30914	-5.06726
13	83.32762	88.58356	-5.25594
14	81.45217	87.75817	-6.306
15	80.28272	86.98313	-6.70041
16	79.11977	86.27124	-7.15147
17	77.99964	85.72609	-7.72645
18	77.26147	85.36276	-8.10129
19	75.81166	84.56323	-8.75157
20	74.9832	83.68594	-8.70274
21	74.2428	82.72481	-8.48201
22	73.45939	82.05717	-8.59778
23	72.42111	81.4295	-9.00839
24	71.66016	80.50652	-8.84636
25	70.5484	79.80308	-9.25468
26	69.69663	78.71557	-9.01894
27	68.62007	76.9575	-8.33743
28	67.79556	76.19604	-8.40048
29	66.40561	75.48693	-9.08132
30	65.47529	75.16663	-9.69134
31	64.71379	74.60749	-9.8937
32	63.61708	73.86599	-10.24891
33	62.63149	72.99671	-10.36522
34	61.57391	71.93734	-10.36343
35	60.26737	71.10834	-10.84097
36	59.44805	70.66238	-11.21433
37	58.32154	69.79129	-11.46975
38	57.08652	68.85819	-11.77167
39	55.97217	67.85738	-11.88521
40	54.52562	66.76257	-12.23695
41	52.99847	66.16828	-13.16981
42	52.10534	65.73975	-13.63441
43	50.96236	64.84995	-13.88759
44	50.03748	63.94278	-13.9053
45	48.98626	62.82685	-13.84059
46	47.84606	62.12092	-14.27486
47	47.52204	61.54833	-14.02629
48	46.25762	60.21196	-13.95434
49	45.32472	59.09232	-13.7676
50	44.39224	57.92365	-13.53141
51	43.97364	57.34583	-13.37219
52	42.47867	55.70098	-13.22231
53	41.57062	54.21934	-12.64872
54	41.34173	53.35787	-12.01614
55	40.48184	52.1521	-11.67026
56	39.5637	51.13919	-11.57549
57	38.42705	49.72421	-10.29716
58	37.82164	48.51002	-9.68838
59	36.8726	47.09992	-9.22732
60	36.02646	45.64099	-8.61453
61	35.20449	44.62452	-8.42003
62	34.20533	43.2565	-8.05117
63	33.22278	42.64641	-8.42363
64	32.63164	41.25978	-7.62814
65	31.81127	39.72356	-6.91229
66	30.74445	38.68171	-6.93726
67	29.68346	37.62788	-6.94442
68	28.93184	36.84219	-6.91035
69	28.06773	34.84989	-5.78216
70	26.95693	33.79968	-4.84275
71	26.3238	33.02052	-4.69672
72	25.22506	31.36762	-3.14256
73	24.39454	29.93586	-2.54132
74	24.04313	28.02739	-1.98426
75	22.99244	26.76484	-0.7724
76	22.41555	24.7774	-0.36185
77	21.85477	24.23067	-0.3759
78	20.94619	22.27928	-0.33309
79	20.28317	21.48488	-0.20171
80	19.79435	20.32518	-0.53083

From the L-difference I can attempt to make a third "tuned" iterative ICC profile for CS5, but it get's a bit tricky to do this in the lower patches. I haven't figured it out yet.

Walker Blackwell
802.821.4451
www.walkerblackwell.com
aim: greendirtblues
wblackwell@...


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