Electron gun photography

The new Budweiser, the old Budweiser, refers to the macro lens with a focal length of 100mm produced by Canon. The new one is a second-generation product, so it is called the new Budweiser. The previous generation was naturally called tempting fate.

Bai Xiaobai, the 70-200mm zoom lens produced by Canon Company is called Xiaobai, which is divided into f=2.8 Xiaobai and f=4 Guo Xuwei. Xiaobai and Guo Xuwei are divided into those with or without anti-shake and those with anti-shake called Aixiaobai or AiGuo Xuwei. Dabai is the lens of Canon 100-400.

All kinds of guns are Nikon products. I know, small bamboo gun and small steel gun refer to AF-S VR 70-200mm f/2.8G IF-ED small bamboo gun /AF 80-200mm f/2.8D ED small steel gun. The imaging quality of these two heads is similar, except that the small steel gun is a little older, and the small bamboo gun is improved on the basis of the small steel gun. One is to increase the support ring of the lens angle bracket, and the other is to increase the anti-shake function. Bamboo cannon is specially designed for digital SLR cameras, so there is a G in the name. Can only be used for digital SLR cameras in APS format. If it is used in ordinary film SLR cameras, black circles will appear around the photos.