The previous post was to show that the el cheapo lens delivers the goods with a TC on the low resolution body. And now for something that looks garbage but is in fact bloody marvellous. I glimpsed through a double-glazed window at dusk with considerable cloud, a Greater Spotted Woodpecker on our feeder, 15m away. I grabbed the R6+1.4xTC+RF 100-400mm, and took a quick hand-held shot at 1/100s. Auto iso jumped to 25,600! This is a crop where the bird occupies only 800x400px. I am blown over by what this gear can do.