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| Categories | Resolution Test Chart | 
|---|---|
| Brand Name: | SineImage | 
| Model Number: | COLOR CAMERA GRAY SCALE TEST CHART | 
| Certification: | CE&RoHS&TUV&FCC&ISO9001 | 
| Place of Origin: | Shenzhen, China | 
| MOQ: | 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 | 
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:
| Step | Density | Remission in % | Output voltage in % | 
| 1 | 0.22 | 60 | 100 | 
| 2 | 0.32 | 48 | 88.75 | 
| 3 | 0.44 | 36 | 77.5 | 
| 4 | 0.57 | 26 | 66.25 | 
| 5 | 0.73 | 19 | 55 | 
| 6 | 0.91 | 12 | 43.75 | 
| 7 | 1.13 | 07 | 32.5 | 
| 8 | 1.43 | 04 | 21.25 | 
| 9 | 1.85 | 01.4 | 10 | 
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
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