Isn’t it cool to use a microscope objective for macro photography? I mean, just by looking at it, it is cool. But when I first started using microscope objectives on my Canon 550D, I made quite a few mistakes. That was largely due to the fact that I did not understand what microscope objectives are and how they should be used to achieve the result I wanted.
It is very cool to have an objective mounted in front of a telephoto lens, just by looking at it. This objective is an achromatic 4x infinite one with NA of 0.1. It is mounted on a 70-300 mm telephoto lens