Description
Product Overview
The OBITRANSIT 400mm Photographic Light Meter Calibration Chart is engineered for precision and durability. Measuring 15.75 x 15.75 inches, the chart is fabricated from high‑quality aluminium alloy, ensuring stable dimensions and resistance to warping. Its diffuse reflective surface delivers clear, consistent color patches, while the 18 × 18 grid pattern can be customized to suit specific workflow needs. With an error margin under 5 µm, this tool offers unparalleled accuracy for exposure and color balance calibration.
Usage
Designed for professional photographers, studio technicians, and field shooters, the chart excels in environments where exact light measurement is critical. Use it to calibrate light meters, verify camera color profiles, or train assistants on consistent exposure techniques. Its portable size and robust build make it suitable for on‑location shoots, studio setups, and educational settings. 
Why Choose Us
OBITRANSIT combines meticulous engineering with premium materials to deliver a calibration chart that stands out in accuracy and longevity. The aluminium alloy base resists deformation, while the high‑precision printing process guarantees color fidelity across the entire surface. Each chart undergoes strict quality control, ensuring that every unit meets the sub‑5 µm error specification, providing confidence for demanding photographic applications.
Key Features
- 400mm square format with 20mm sub‑units for detailed calibration
- 18 × 18 customizable pattern for versatile workflow integration
- High precision manufacturing with error less than 5 µm
- Sturdy aluminium alloy construction for stable dimensions
- Diffuse reflective surface for clear, user‑friendly readings
FAQ
What is the recommended lighting condition for using the chart?
For optimal results, use a neutral, evenly distributed light source such as a daylight‑balanced studio light or overcast natural light to avoid color casts.
Can the pattern be customized?
Yes, the 18 × 18 grid can be ordered with custom color patches or markings to match specific calibration standards.
How does the aluminium alloy affect performance?
The aluminium alloy provides a rigid, flat surface that resists warping, ensuring consistent measurements over time and under varying temperature conditions.
Is the chart suitable for video production?
Absolutely. The precise color reference and stable dimensions make it valuable for setting white balance and exposure in both photography and video workflows.
What warranty does OBITRANSIT offer?
OBITRANSIT provides a one‑year limited warranty covering manufacturing defects, ensuring you receive a reliable calibration tool.





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