So using EHT (Event Horizon Telescope) technique, the first black hole image was remarkable. It's said that they could even take a very clear image of a donut on the Moon. EHT is not your conventional telescope with lenses. It's a network of radio telescopes or rather observatories, synchronized to produce such images.
I guess the next time I'm out, I'll with my own telescope look at Sagittarius A* and pretend I saw the black hole as well.