The working principle of a tele converter is relatively simple. It consists of a set of optical elements that magnify the image projected by the lens before it reaches the camera sensor. The magnification factor is determined by the design of the tele converter, with common options being 1.4x and 2x. For example, when using a 2x tele converter with a 200mm lens, the effective focal le... https://www.coherentmarketinsights.com/blog/15-practical-tips-to-expand-your-business-online-2149