Would it be useful to add a teleconverter to Canon 70-200? Is there any lens that can allow me to take macro shots?

The Canon 70-200 lens has two constant apertures: f2.8 and f4. I don’t know which one you choose, because after adding an extension lens, the constant aperture value will be reduced. Theoretically speaking: the original The larger the constant value, the better the photography effect after adding a teleconverter. Now the original factory has 1.4 and 2.0 times teleconverters. If you are using a Canon half-frame camera, the actual price of the lens is 70-200. , it has become a focal length of 112-320, which is already good. If you add a teleconverter, the stability and convenience during photography need to be considered. Sometimes the focal length is not "the longer the better" and needs to be considered comprehensively.

In addition, a relatively simple way to achieve macro photography is to install a "close-up lens" in front of the lens. There are several specifications. Different specifications have different close-up magnifications, but the greater the magnification, the more stable the lens. The worse the performance; the price is not expensive, one set costs about 300 yuan, which is a more affordable choice for beginners; in the end, it is better to buy a dedicated lens for macro photography, as well as a suitable tripod, after all, macro photography is the focus The requirements for accurate focusing are very high, but the relative investment is also relatively high.