Yoshida Industry Co., Ltd. is a renowned manufacturer of top-quality optical instruments under the RAYNOX brand name. With 60 years of experience, the company has earned a reputation for excellence, which is attributed to its unwavering commitment to research and development.

The company utilizes cutting-edge technology, such as high-index/low-dispersion optical glasses, structural polymer barrel materials, and anti-reflection coatings, to produce lenses that are of unmatched quality. Moreover, the use of computer-aided-design/computer-aided-manufacturing (CAD/CAM) has further enhanced the precision and accuracy of the manufacturing process.

Despite utilizing advanced materials and techniques, RAYNOX lenses remain affordably priced. This is due to the company's focus on efficient and economical production, resulting in lenses that offer unparalleled quality and durability at exceptional value.