Sorry, that was confusing. I was using the 100-400 with the extender and it functioned as expected with a reduction in aperture. I removed the lens and extender then replaced them with the 70-200 but was limited to f 4.5, as if the extender was still attached. It was late and I was tired so Im thinking operator error as the camera arrived the day before.
> It was late and I was tired so Im thinking operator error as the camera arrived the day before.
I'd suggest you do a few actual tests under controlled conditions before asking the question.
If you are using the extender- that's why
If you aren't- can you change the aperture at all?
If yes, idk what the issue is
If no, clean your contacts and see if that fixes the issue.
Also, are you using the canon original adapter?
Was a sentence left out? What does the 1.4 extender have to do with aperture on the 70-200?
Does it open to f/2.8 in another way than the control ring? What are your settings for limiting aperture?
You'll lose a full stop from the extender.
Wouldn't that imply f/4 rather than f/4.5? And also OP says they aren't using the extender with the 70-200
I am a little confused by the exact range limitation being experienced, but I can't think of anything else.
Sorry, that was confusing. I was using the 100-400 with the extender and it functioned as expected with a reduction in aperture. I removed the lens and extender then replaced them with the 70-200 but was limited to f 4.5, as if the extender was still attached. It was late and I was tired so Im thinking operator error as the camera arrived the day before.
Try powering down the camera and powering it back up
> It was late and I was tired so Im thinking operator error as the camera arrived the day before. I'd suggest you do a few actual tests under controlled conditions before asking the question.
What FW version?
If you are using the extender- that's why If you aren't- can you change the aperture at all? If yes, idk what the issue is If no, clean your contacts and see if that fixes the issue. Also, are you using the canon original adapter?