How you ask will I get a better result than the one posted by FIX with their 28AD adapter and the 165AD-FE?? Oh dear, because I will make it so, that is how To be clear, since I do not have their adapter in my hands yet I cannot be 100% positive but I have been fooling with this lens now for three years and now on my fifth camera so I know a little about what it likes. It is my opinion, based on what I am seeing that the FIX 28AD adapter is holding the Inon 165AD-FE lens slightly forward of the "sweet" spot, this is based on my use of the lens and now several dry test shots and even a few wet test shots and comparing to what I see on the FIX site. The key is keeping the lens very close to the port. The 28AD adapter is not an AD adapter--it is a 28AD adapter. The 28AD adapter is not optimal for AD series lenses. Read carefully, it is my belief that I can get the lens closer to the port using my DIY adapter with the FIX 67mm adapter kit instead of their 28AD. If I am wrong I will let you now as soon as possible which may be soon, as soon as I get my adapter kit from my favorite underwater camera store!
If forced, I will machine my own entire adapter in order to use the 165AD-FE to it's fullest advantage--it must be mounted CLOSE!
Ha! I see, thanks for the explanation. I'm very interested in hearing about your results (and since there's no way I'll ever be able to machine my own adapter, I'll explore the other options if I go with the fix housing).
I'm still curious as why they can't produce the proper adapter for the FE lens, maybe it's because they'd rather sell their own lens?