JJC 2-in-1 Grey Card + Focus Calibration Chart for Autofocus Adjustment

The JJC 2-in-1 Grey Card and Focus Calibration Chart is an essential tool for photographers and videographers seeking precise autofocus calibration and accurate white balance. This dual-purpose accessory combines an 18% neutral grey card for custom white balance setting with a detailed focus calibration chart featuring slanted edge and ruler scale designs. Made from durable, water-resistant, and scratch-resistant PVC, it is built to withstand frequent use in studio or outdoor environments. The foldable, portable design allows for easy storage and transport, and it can be used freestanding or handheld. Compatible with all DSLR and mirrorless cameras, this calibration tool helps eliminate front/back focus issues and ensures consistent color accuracy in your images.

Advantages

This 2-in-1 tool saves space and cost by combining two essential calibration functions in one product. The 18% grey card provides a neutral reference for custom white balance, while the focus chart enables precise autofocus micro-adjustment. The non-reflective matte surface reduces glare, and the durable PVC material ensures long-lasting performance. Its lightweight and foldable design make it ideal for on-the-go photographers.

Suitable for

• Photographers using DSLR or mirrorless cameras needing autofocus calibration
• Videographers requiring accurate white balance in various lighting conditions
• Studio and outdoor shooting scenarios
• Both amateur and professional users

Key specifications

• Product Type: Camera Calibration Tool
• Functionality: 2-in-1 (Autofocus Calibration, White Balance Setting)
• Grey Card Reflectance: 18% Neutral Grey
• Focus Chart Design: Slanted Edge & Ruler Scale
• Calibration Purpose: Front/Back Focus Adjustment
• White Balance Purpose: Custom White Balance Setting
• Material: Durable PVC
• Compatibility: Universal for DSLR & Mirrorless Cameras
• Design: Foldable, Portable
• Surface Finish: Non-reflective Matte
• Measurement Scale: Centimeters (cm)
• Color Accuracy: High Precision
• Durability Features: Water-resistant, Scratch-resistant
• Application: Photography, Videography (Studio & Outdoor)
• Setup: Freestanding or Handheld
• Dimensions (Unfolded): Approx. 290 x 400 x 2.5 mm
• Weight Class: Lightweight
• Included Components: Grey Card, Focus Calibration Chart

Recommendations

For best results, use the grey card under the same lighting as your subject to set a custom white balance. For autofocus calibration, follow your camera's micro-adjustment procedure using the focus chart at a 45-degree angle. Store flat in a dry place to maintain accuracy.