Here’s how it works. Since we began testing cameras more than two decades ago, TechRadar has reviewed every Canon camera worth writing about, covering everything from premium compacts to the ...

Canon Inc. is a Japanese multinational corporation specializing in the manufacture of imaging and optical products, including cameras, camcorders, photocopiers, steppers, computer printers and medical ...

The Canon RF 200-800mm f/6.3-9 IS USM is the reigning superzoom champion in terms of focal range and is impressively lightweight and compact for its reach. However, its mediocre maximum aperture does ...

为探究 A2E 是否引发蓝光诱导的 RPE 细胞铁死亡及机制，研究人员开展相关研究。结果发现蓝光促进 A2E 诱导 RPE 细胞铁死亡，这为 STGD1 和干性 AMD 治疗提供新思路，值得科研读者一读。 在眼科疾病的研究领域，年龄相关性黄斑变性（AMD）和常染色体隐性遗传性斯 ...