Works great, took a little getting used I the size, and attaching the lens to camera body inside the housing & THEN securing the port with extensions attached.
Considering the only other ports I had used were the flat port for 12-50 kit lens and the 4" mini-dome for the fisheye I will admit to being nervous about the slight movement of the multiple parts.
System has worked flawlessly since I got it
Love the lens, and the ability to get wide-angle images even with the low viz waters around Vancouver, British Columbia.
Zoom for the 12-40 is controlled by the knob on the housing. Had hoped that the focus knob on the adaptor port would be able to achieve manual focus, but have not figured a way to have both zoom and focus gears.
Will definately be having a close look at the Oly 7-14mm when released. The wider angle would be nice.
- EspenB likes this