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11 Step Grayscale Test Chart Gray Scale Card with Transmissive and Reflective Types for 240x180mm Camera Calibration
11 Step Grayscale Test Chart
,Transmissive Grayscale Test Chart
,Reflective Gray Scale Card
The 11-Step Grayscale Card is a professional imaging testing tool primarily used to evaluate the grayscale reproduction capability of cameras. It assesses the fineness of an image's light and dark levels through 11 distinct brightness levels ranging from pure white to pure black. The common NHK standard gamma value is 0.45. The card can also be equipped with blue, yellow, and red color blocks to assist in testing color saturation.
| Card Types | Transmissive and reflective |
|---|---|
| Effective Size | 240 × 180 mm (mainstream); some models compatible with 16:9 or 4:3 aspect ratios |
| Grayscale Distribution | Logarithmic scale distribution of transmittance / reflectance |
| Contrast Range | Up to 40:1 |
| Compliance | Conforms to industry standards such as ITU BT.709 |
| Signal Output | Enables cameras with standard gamma correction to output linear step signals |
The 11-step grayscale card is designed to test key imaging parameters, including:
- Camera metering accuracy
- Camera gamma characteristics
- White balance
- Dynamic range
It is widely applied in factory calibration and performance testing scenarios for surveillance equipment as well as photographic and video equipment.
High Precision Quartz Glass Photolithography Reticle Concentric Circle Pattern Photolithography Calibration Plate
Product Overview Concentric circle transmission reticles are a specialized type of transmission-type optical calibration element. They use a highly transparent substrate to support concentric ring patterns, allowing the calibration pattern to be superimposed onto the image. These reticles can also ...
DM Code Calibration Board QR Code Calibration Target with 1um Precision Customizable Size Glass Substrate for Vision Systems
DM Code Calibration Board for High-Precision Camera & Vision Systems The QR Code Calibration Board is engineered for high-precision camera and vision system calibration, supporting both intrinsic and extrinsic parameter adjustment. By integrating QR codes with unique IDs, it enables robust and ...
1um Precision Vision Calibration Target Calibration Board with Customizable Size and Glass Ceramic Film Aluminum Material
Product OverviewThe circular dot calibration board is a high-precision calibration tool engineered for optical systems. It ensures accurate camera calibration, lens distortion correction, and reliable system performance evaluation. Manufactured using advanced photolithography technology, the board ...
1um Precision Checkerboard Calibration Board Camera Calibration Chessboard with Customizable Size and Glass Ceramic Film Aluminum Material
Product Overview The Checkerboard Calibration Board is one of the most widely used tools for camera and vision system calibration. Its high-contrast black and white square pattern enables precise corner detection, allowing accurate estimation of intrinsic and extrinsic parameters. This ensures ...
