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HDTV Log. Gray Scale Test Chart, 13 steps, contrast 1:200 YE0223 Halftone Reproduction Evaluation Chart

Shenzhen ThreeNH Technology Co., Ltd.

HDTV Log. Gray Scale Test Chart, 13 steps, contrast 1:200 YE0223 Halftone Reproduction Evaluation Chart

Brand Name : SineImage

Model Number : YE0223

Place of Origin : P.R.China

MOQ : 1pcs

Price : Negotiable

Payment Terms : T/T, Paypal, Western Union, Credit Card

Supply Ability : 5000sets per month

Delivery Time : 3 working days

Packaging Details : Packed in cardboard box

Certification : CE / FCC/ ROHS / TUV / ISO9001:2015

Type : Reflective/Transparent

Format : A280/D240

Ratio : 16:9

Material : Photographic paper/Film

Step : 13

Gray scales contrast : 200:1

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HDTV Log. Gray Scale Test Chart, 13 steps, contrast 1:200 YE0223 Halftone Reproduction Evaluation Chart

HDTV Log. Gray Scale Test Chart, 13 steps, contrast 1:200 YE0223 Halftone Reproduction Evaluation Chart

The YE0223 is designed for evaluation of the halftone reproduction of electronic cameras. Two 13-graduated counter current gray scales are arranged on a gray background (D = 0.75), the gray scales being graduated logarithmically. Related to the densities of the gray scales: gamma = 0.45, related to the transmission values (brightness): gamma = 2.2, that being exactly the reciprocal value of gamma = 0.45. The output signal of a optimally gamma-corrected camera yields two 13-gratuated counter current linear step signals.

The contrast range of the gray scales is 200 : 1.

The values of the 13-graduated gray scale are as follows:

Step Density Reflectance in %
1 0.05 89
2 0.13 74
3 0.21 62
4 0.30 50
5 0.40 40
6 0.51 31
7 0.63 23
8 0.78 17
9 0.95 11
10 1.15 7
11 1.41 4
12 1.77 2
13 2.35 0.5

The density values are based on BaSo4 = 0. Two black fields and a white field are located between the gray scales, the density of the black filed is D > 2.4 (reflectance < 0.5 %). The density of the white filed is D = 0.05 (reflectance = 89.9 %).

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Suzie Xia
International Sales Dept.
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Shenzhen ThreeNH Technology Co., Ltd
Add: 4/F, Building 8, Nangang Second Industry Zone, Xili, Nanshan District, Shenzhen, 518055 China.
Tel: 0086-755-27198826 Ext: 601
Fax: 0086-755-27190609
Mobile: 0086-13510878132
Email: y@3nh.com
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Website: www.3nh.com/en


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