billnikon wrote:
First, you posted in the wrong section.
Second, no teleconverter ever produced improves image sharpness.
Third, combining teleconverter's really makes sharpness suffer, as seen in your images.
Forth, I use a 600mm f4 without any converter on a full frame mirrorless camera that I use for my wildlife photography.
Fifth, I never use teleconverter's because of the reasons I have given.
Sixth, Good luck and keep on shooting until the end.
Why do you think its in the wrong section? It was posted here to start a conversatiin about converters. If it was posted in the bird subsection that would not have happened.
As to the rest of your post I'm sure it is at least mostly correct, so the question is not whether or not there is image falloff from using converters the question is when yiu don't have the reach to take the shot which is better converters or extreme cropping. I think converters is a better choice but others do not I was hoping to get a discussion about why people male the different choice and why they think their choice is better.