port ring for tokina 10-17

Has anyone with the 10-17 in a subal noticed any reflections of the lens on the inside of the port with the 15mm ring, or any other ring for that matter.

Hello Julie,

as you can see, on the photo I've posted before, there is strong reflection of the lens at 10mm with the 20mm ring. You can also see I was shooting in an angle against the sun. That never ocurred with the Nikkor fisheye 10.5mm...

Fortunatly Subal has send me, today, the 15mm extension ring to exchange for the 20mm ring. I'll test it soon and give feedback.

I got the 15 mm ext ring from Ryan. Works fine. This though I already owned the 20 mm ring. Part of the reason was that my 20 mm ring was an old one with the smaller O-ring. I want to lessen my chances of using an incorrect o-ring.