extension tube

Selling an Aquatica Locking Extension Tube and Zoom Gear that would allow you to use a canon 16-35 f.28 on Sony A7rii or A7sii housings! Bought used with a housing package and decided they don't fit my lens needs. O Ring on the extension tube looks like it's in good condition, gear turns well...

I plan to buy an a6300 and I was thinking of giving a try to use extension tubes with Sony E PZ 16–50 mm to gain some macro capabilities. I want to "test my hands" before buying a more expensive macro lens (so far I've been using a G7X with a +6 wet diopter that gave me no more than 0.4x...