Looking to add a little more reach on the 300mm for motorsport shooting and was considering adding TC-14E II or TC-17E II
TC-14E II would make it 420mm @ f4
TC-17E II would make it 510mm @ f5.6
I'm led to believe you would need to step it down further to improve IQ.
My question is are there users running the above combo and if so,
What kind of IQ degredation are you seeing/getting.
What kind of AF (hunting) issues are you experiencing.
Is it suitable only for bright sunny days.
Cheers
Phil
TC-14E II would make it 420mm @ f4
TC-17E II would make it 510mm @ f5.6
I'm led to believe you would need to step it down further to improve IQ.
My question is are there users running the above combo and if so,
What kind of IQ degredation are you seeing/getting.
What kind of AF (hunting) issues are you experiencing.
Is it suitable only for bright sunny days.
Cheers
Phil
Last edited: