It came quite quickly to NYC, no problems with customs or such. I tested it on the camera/housing today and it looks like it works just fine in the 8 inch domeport with no extension rings!
Can't wait to try it out next week in Lembeh
Robin
i used the EF16-35 zoom gear on this lens. no modification is needed, fits almost perfectly.
For Sea & Sea I found the Zoom Gear Set 56350 fitted perfectly. I use the SX extension ring 50261 with either the Optical Glass dome port 30104 (not imported to the UK by SEA & SEA Ltd) or the large acrylic dome port 56401. Results are excellent.