I've been searching for the 180mm topic and finally found it.
I shoot macro always with 100mm and now interested to bring my Canon 180mm macro underwater.
I'm using Canon 5D Mark II with Aquatica casing. I was wondering, what port extension should I get? Considering I already have:
- 18457 Extension ring
With the combination of all three stacked together, it is approximately 0.5 - 1 cm too short for Canon 180mm Macro. What's the best solution? If possible, 1 extension ports is better than two.