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Do any of your extension tubes mate with the Oly teleconverters?

Started Feb 23, 2021 | Questions thread
john isaacs Veteran Member • Posts: 8,414
Re: Do any of your extension tubes mate with the Oly teleconverters?

WileEC_ID wrote:

john isaacs wrote:

WileEC_ID wrote:

Thanks all for your help on this. You have provided the help I was hoping for. I will invest in a "sacrificial" set of extension tubes that I will shave down. As a card carrying DIYer I have plenty of tools that will allow me to approach this carefully.

Great help - thank you!

I did not shave my Pixco 16mm because the pictures I saw looked like they had lost the black damping and could throw reflections and impact contrast.

I have a set of Pixco and a set of Kenko. I use the Pixco 10mm and Kenko 10mm or Pixco 16mm on either the MC-14 or MC-20. This gives me either 20mm or 26mm extension.

If you really want 16mm extension, then shave away.

The reason Pixco works is because they have a deeper recess on the contacts ring that does not contact the mount-prevention tab on the TCs. I don't know of any other tubes that will work.

And - I may be affirming that little tab issue - it had not been mentioned, so I made the assumption that the issue was dimension of the EC-14 extension.

That said - others here are using tubes from Fotga without issue.

Live and learn.

EDIT: Is the green box around the tab you are talking about?

Yes, the green box is around the tab.  That tab keeps non-compatible lenses from mounting on the TC.  Compatible lenses have a recess or groove that clears the tab, allowing the lens to mount.  The Pixco tubes are recessed (they don't have a groove), so that they clear the tab.  My Kenko tubes are not recessed, and so they contact the tab which prevents mounting them on the TC.

I looked at some pictures of the Fotga tubes, looks like they are recessed and will mount (as long as the optics hole is large enough).

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