How to configure the big ternary and small ternary of Canon SLR lens?

1 and "big ternary" in Canon lens refer to E 16-35mm f/2.8L II USM wide-angle zoom head, EF 24-70mm f/2.8L USM standard zoom head and EF 70-200mm f/2.8L USM telephoto zoom head respectively. Because it is matched with Quan Huafu model 5DII, we must choose products with excellent imaging quality at the lens edge in the aspect of super wide angle. EF 16-35mm f/2.8L II USM not only has the maximum shooting angle of 108, but also uses three different aspherical lenses to correct the distortion of the imaging corner.

2. Facing 5DII's 2 165438+ million effective pixels, the resolution of the three lenses is also remarkable. With the two upgrades of the telephoto zoom lens with a focal length of 70-200mm, if you are a well-funded 5DII user, it is absolutely icing on the cake to equip the EF 70-200mm f/2.8L IS II USM.

3. For photographers whose budget is slightly lower than that of 5DII users, 7D itself is a very good choice, especially its price advantage is one of the best in the whole mid-range SLR field, so when we match glasses for it, we will naturally consider the cost-effective lens combination.

4. The "small ternary" in Canon lens is put forward according to this principle. They respectively refer to the wide-angle zoom head of EF 17-40mm f/4L USM, the standard zoom head of E24-105mm f/4LUSM and the telephoto zoom head of E70-200mm f/4LUSM.

Although the aperture of these three lenses is slightly smaller than the "Big Three Yuan" mentioned above, they show almost equal strength in imaging quality. In particular, the overall price of "Small Sanyuan" is about half cheaper than that of "Big Sanyuan", which is the main reason why we have to ration it to 7D.