Schneider blue circle lens is a high-quality architectural photographic lens. It is a blue ring lens with autofocus function, which consists of 7 groups of 10 lenses. Schneider's lens is an all-metal body, which shows the weight of the lens and feels good when used. There are many kinds of Schneider lenses, and its first-class design makes medium format and large format lenses stand out in the lens industry. Schneider's lens can be matched with many brands of SLR, and the better the performance, the better the use effect. Schneider's lenses are expensive and suitable for photographers to buy.