The 2X extender gets talked down a lot, but I accidentally created a nice comparison. The lions in the distance were a couple of hundred yards away. But we could not get closer without leaving the road. Prohibited in the car, and dangerous on foot. I shot, then added the 2x and shot again. Both are nice images. Note the animals did not move, nor did I. Both shots are hand held and I shot 1-20 images of each and chose the sharpest.
What interests me is the detail captured in the animals. The original images are below, (downsized to 500 pixels wide.).
500mm
1000mm
Here is a tight crop on the faces I've upresed the 500mm photo in photoshop to make it the same size.
500mm, doubled in Photoshop:
1000mm (100-500mm with RF 2X Extender)
I think the lions are noticeably more detailed. I wish I'd had a 1.4X converter to try as well.
What interests me is the detail captured in the animals. The original images are below, (downsized to 500 pixels wide.).
500mm
1000mm
Here is a tight crop on the faces I've upresed the 500mm photo in photoshop to make it the same size.
500mm, doubled in Photoshop:
1000mm (100-500mm with RF 2X Extender)
I think the lions are noticeably more detailed. I wish I'd had a 1.4X converter to try as well.