The CAL1 is a 0.3 m integrating sphere that uses iQ-LED V2 technology to illuminate a 70 mm opening for camera testing and calibration. A non-reflective diffusor filter on the sphere opening ensures uniformity of > 98%. This diffusor filter has better Lambertian characteristics as opposed to the first-generation device.

CAL1 是一個 0.3 米的積分球,採用 iQ-LED V2 技術,可照亮 70 毫米的開口,用於相機測試和校准。球開口上的非反射漫射濾光片可確保大於 98% 的均勻性。與第一代設備相比,這種漫射濾光片具有更好的朗伯特性。