Hi people, I was experimenting with a 500mm mirror lens last night, and it jitters like mad when I'm focusing. End up 1 shot marginally ok while the rest were just out of focus.
I have a 70-200 and was toying with the idea of getting a 2x extender. Like to ask if anyone has tried and does the focusing jitter a lot at 400mm?
Thanks in advance.
I have a 70-200 and was toying with the idea of getting a 2x extender. Like to ask if anyone has tried and does the focusing jitter a lot at 400mm?
Thanks in advance.