Review on 📷 Sigma 1.4x EX DG Teleconverter for Nikon Mount Lenses - APO by Kody Bradley

This is a great example from Sigma, I tried it on my APO MACRO 150mm F2.8 EX DG HSM and CANON 20D body, the results were wonderful, the sharpness is not lost, it looks , as if it were part of the original lens, you can even sell your photos. What else? The only thing I didn't like is that with a 150mm macro lens, 1.4x APO teleconverter, the autofocus works between infinity and 0.52m, if the subject is closer than 0.52m, only MF is available, also a similar case with Macro 180mm, but with different numbers. With other compatible lenses like (APO 300mm F2.8 EX DG HSM), it works great with auto focus. 2X for Sigma compatible MACRO lenses as autofocus still works.