China 3nh Spectrophotometer manufacturer
Shenzhen ThreeNH Technology Co., Ltd.
Shenzhen ThreeNH Technology Co., Ltd Since 1998, 3nh has been a professional factory with 20 years experience on color and glossy measurement industry.
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Professional Resolution Test Chart Two 9 Graduated Counter Current Gray Scales

Professional Resolution Test Chart Two 9 Graduated Counter Current Gray Scales

Brand Name SineImage
Model Number COLOR CAMERA GRAY SCALE TEST CHART
Certification CE&RoHS&TUV&FCC&ISO9001
Place of Origin Shenzhen, China
Minimum Order Quantity 1pc
Payment Terms T/T,Paypal
Supply Ability 1000pcs/month
Delivery Time within 3-5 working days after payment confirmed
Packaging Details Standard Export Package
Brand SineImage
Usage adjustment of camera flare corrections
OEM Yes
Light Source Can be equiped with light box
Basics Value BaO4S= 0
gamma 0.45
Detailed Product Description

SineImage Cheap Professional Two 9-graduated Counter Current Gray Scales COLOR CAMERA GRAY SCALE TEST CHART

 

 

Two 9-graduated counter current gray scales are arranged on a gray background (D ≈ 0.75), the gray scales being graduated logarithmically (gamma = 0.45). The output of an optimally gamma-corrected camera yields two 9-graduated counter current linear step signals. The contrast range of the gray scales is 50:1.

 

The values of the 9-graduated gray scale are as follows:

 

StepDensityRemission in %Output voltage in %
10.2260100
20.324888.75
30.443677.5
40.572666.25
50.731955
60.911243.75
71.130732.5
81.430421.25
91.8501.410

 

 

The density values are based on a density of BaO4S= 0.

 

The test chart incorporates a super black cavity for the accurate adjustment of camera flare corrections and setting of black level. On both sides of the super black hole 4.5 and 5.5MHz bars with a contrast ratio of 7:1 are located. Above and below the gray scales there are additional markings for the 16:9 format.

 

 

About Us:

Contact Information:

 

Contact Person: Clara Liu;

Email: L001@3nh.com;

Wechat & Whatsapp ID: +8613510310267;

Skype: clara.3nh

 

Product Tags: camera resolution chart   camera lens test chart  
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