This lens doesn't allow for teleconverter. I use a neewer 67 mm front screw on magnifier 2.2x. I also use an 82 mm screw on Hood on the front of that. 440-1320 equivalent to full frame. I use it on the Panasonic G9 and the Olympus m10 Mark II. A poor man's 100-400. You need to use either a monopod or a tripod for stability at full zoom.
This lens doesn't allow for teleconverter. I use a neewer 67 mm front screw on magnifier 2.2x. I also use an 82 mm screw on Hood on the front of that. 440-1320 equivalent to full frame. I use it on the Panasonic G9 and the Olympus m10 Mark II. A poor man's 100-400. You need to use either a monopod or a tripod for stability at full zoom.