Beginner here, bought a samyang 135mm and used my Canon 2000d to start. Quickly got hooked and now I got myself a zwo 585mc. I asked the store I bought it what I need to use both together and they sold me the Canon-zwo T2 adapter.
I tried it yesterday and it seems that I can't get in focus I would have to push the focus ring past infinite. I started to read on the Web that there is those back focus problems and I have to find the right rings to get the cam at right place.
Is it right that for a canon model samyang 135mm I have to aim for 44mm ?
If I measure quickly (see image) I am already past 44mm, is the canon-zwo adaptor the wrong one ? Or I don't measure right ?
Thanks for your enlightenment.