Color Standards & Specifications Wide Format Series

Transcription

1 Color Standards & Specifications Wide Format Series Kerry Moloney Field & Channel Marketing Manager Fiery Wide Format John Nate WW Technical Product Training Manager Fiery Wide Format

2 Session overview Knowledge of the latest color-industry standards is a must to satisfy today s customer needs Why standards exist, what they are used for, and where they play a part in the print process Advice on document types and settings when working with standards and specifications Take a quick poll 2

3 Today s topics Standards, specifications, and methods Why we need them Why we are wrong Specifications Document Printing Evaluation Measurement Viewing 3

4 Standards, specifications & methods What do you want? 4

5 Standards If you don t set standards 5

6 Standards you won t know what s right. 6

7 Standards (Not what you think) - ISO A document established by consensus and approved by a recognized body that provides for common and repeated use, rules, guidelines or characteristics for activities or their results, aimed at the achievement of the optimum degree of order in a given context. 7

8 Specifications - ISO A detailed description of the criteria for a piece of work. Specifications for printing can include characterization-data, ICC-profiles, PDF preflight criteria, calibration targets for the print process, etc. 8

9 Methods - ISO A way, technique, or process for doing something. 9

10 In simpler terms Standards A car Specifications How fast, mpg, which parts, what color Methods How to assemble 10

11 In simpler terms Standards A car Specifications How fast, mpg, which parts, what color Methods How to assemble 11

12 In simpler terms Standards A car Specifications How fast, mpg, which parts, what color Methods How to assemble 12

13 In our world Standard A printed piece Specifications What stock, which inks, matching what? Methods How to get the look you want 13

14 Document standards Who built this? 14

15 Document standards There aren t any! But there are recommendations 15

16 Document standards - GIF 256 colors per file Websites Animations 16

17 Document standards - PNG No CMYK support Websites 17

18 Document standards - JPG RGB, CMYK, L*a*b* ICC Profile Lossy Compression 18

19 JPG artifacts 19

20 JPG artifacts 20

21 Document standards - TIFF RGB, CMYK, L*a*b* ICC Profile Lossless Compression 21

22 PDF recommendations 22

23 PDF recommendations PDF/X-1a Least flexible CMYK only No ICC Profiles No transparency or layers Least likely to cause reproduction problems 23

24 PDF recommendations PDF/X-4 Most flexible CMYK, RGB, Gray, Spot colors ICC Profiles allowed Transparency and layers allowed Most likely to cause reproduction problems 24

25 Production checklist File prepared 25

26 Printing standards specifications What should it look like? 26

27 Printing specifications - Americas SWOP Specifications for Web Offset Publications SNAP Specifications for Newsprint Advertising Production GRACoL General Requirements for Applications in Commercial Offset Lithography First Flexographic Image Reproduction Specifications & Tolerances 27

28 Printing specifications - Americas SWOP Specifications for Web Offset Publications SNAP Specifications for Newsprint Advertising Production GRACoL General Requirements for Applications in Commercial Offset Lithography First Flexographic Image Reproduction Specifications & Tolerances 28

29 Printing specifications - Americas SWOP Specifications for Web Offset Publications SNAP Specifications for Newsprint Advertising Production GRACoL General Requirements for Applications in Commercial Offset Lithography First Flexographic Image Reproduction Specifications & Tolerances 29

30 Printing specifications - Americas SWOP Specifications for Web Offset Publications SNAP Specifications for Newsprint Advertising Production GRACoL General Requirements for Applications in Commercial Offset Lithography First Flexographic Image Reproduction Specifications & Tolerances 30

31 Printing specifications - International Fogra Fogra 39 (Coated stock) Fogra 48 (Newsprint) Fogra 50 (Gloss laminated) 3DAP Australia 3 paper types Japan Color ISO Japan 4 print conditions ISO Coated ISO Uncoated ISO Newspaper 31

32 Printing specifications - GRACoL 32

33 G7 a method 7 = CMYK & RGB G = Gray balance Based on L*a*b* measurements 33

34 G7 a method 7 = CMYK & RGB G = Gray balance Based on L*a*b* measurements 34

35 G7 a method 7 = CMYK & RGB G = Gray balance Based on L*a*b* measurements 35

36 What is G7? Where are you going? 36

37 What is G7? Where are you going? New York Paris Tokyo 37

38 What is G7? Where are you going? New York Paris Driving Tokyo 38

39 What is G7? What are you trying to match? 39

40 What is G7? What are you trying to match? GRACol Fogra 39 Japan Color 40

41 What is G7? What are you trying to match? GRACol Fogra 39 G7 Japan Color 41

42 G7 Compliance levels Gray Balanced Conforms to a Specification Uses Correct Media Uses Correct Ink Uses ICC Profiles Grayscale Targeted Colorspace Extreme 42

43 Expanded gamut printing (G7 Extreme) Traditional (GRACoL ISO Coated) 100% red = 97% magenta + 89% yellow Expanded gamut 100% red = 100% magenta + 100% yellow 43

44 Expanded gamut printing Traditional (GRACoL ISO Coated) 100% red = 97% magenta + 89% yellow Expanded gamut 100% red = 100% magenta + 100% yellow 44

45 Production checklist File prepared Specification selected 45

46 Evaluation standards Where is your proof? 46

47 Color bars IDEAlliance 2009 IDEAlliance 2013 Japan 3DAP Fogra v3 47

48 Aims (GRACoL) 48

49 Small number difference. large visual difference 49

50 Tolerances 50

51 Expanded gamut 51

52 Production checklist File prepared Specification selected Color bar, aims, & tolerance selected 52

53 Measurement standards The M illuminants 53

54 Measurement standards M0 UV Include M1 D50 (a little UV) M2 UV Exclude (UV Cut) M3 M2 + Polarization Filter 54

55 Measurement standards M0 UV Include M2 UV Exclude (UV Cut) M1 D50 (a little UV) M3 M2 + Polarization Filter 55

56 Measurement standards M0 UV Include M2 UV Exclude (UV Cut) M1 D50 (a little UV) M3 M2 + Polarization Filter 56

57 Measurement standards M0 Old reference measurements 57

58 Measurement standards M0 Old reference measurements M1 New reference measurements Match new viewing booth lamps 58

59 M1 capable measurement devices ES-2000/i1 Pro 2 Konica Minolta FD-5BT Barbieri Spectro LFP Barbieri Spectro Pad 59

60 Production checklist File prepared Specification selected Color bar, aims, & tolerance selected Color bar measured and evaluated 60

61 Viewing standards What color is your light? 61

62 Viewing standards Problems Type of lamps Color of light Metamerism Optical Brighteners 62

63 Type of lamps Incandescent Fluorescent LED 63

64 Color of light 64

65 Color temperature 65

66 Lamp standards CRI Color rendering index 100 = Perfection (The sun) Fluorescent lamps = LED = up to 98 66

67 Metamerism Sample colors match under one lighting condition but not under others 67

68 Metamerism 68

69 Optical brighteners UV light causes optical brighteners to fluoresce producing a blue shift 69

70 Optical brighteners Proofing media Production media Press sheets Inks 70

71 Use a booth! 71

72 Production checklist File prepared Specification selected Color bar, aims, & tolerance selected Color bar measured and evaluated Image properly viewed 72

73 Session summary We learned The difference between standards, specifications, methods and compliance and how these differ globally How important lighting and viewing conditions are when evaluating standardized results Documents standards don t exist but recommendations do! To learn more, we have some resources for you 73

74 Additional resources Just Enough Video Bank covering topics such as G7 & GRACoL Latest news and advice on standards and specifications Best practices for publishing and packaging workflows More information on M illuminants for measurement devices Detailed overview of PDF/X 74

75 Additional World of Fiery sessions May 27 Color Management Fundamentals Learn the foundations of color theory and management to get the most from your design software and color technologies. June 17 Color Standards & Specifications Gain knowledge of the latest industry standards and how they apply to wide and superwide format printing and proofing. July 8 Color Management Inside Fiery XF & Fiery proserver Put your knowledge into practice and understand RIP-level color controls. Production Series for wide format printing starting this September, details can be found on the WoF home page 75

76 Color standards & specifications Questions? 76

77 Color standards & specifications Thank you! 77