Ok heres my dilemma. Im going on a blackboards cruise in a couple weeks, which will be my first time using my Tokina 10-17. I have experience with my Nikon 60. I'm using the 6" dome port and I have a couple questions related to minimizing $$$ spent on extension rings.

1. Can the 6" port be used with the 10-17 w/o an extension ring? I know it fits but corner sharpness will suffer. My question is how much.
2. Im interested in using my Kenko 1.4 with the 60mm since i don't have a 105.
a)Will i want this in the bahamas on this trip or will i be fine with just the 60?
b) can i use the same extension ring as the 10-17? I know the chart says a different one but Ive assembled the camera and it seems to fit without any extension ring at all so maybe it would work?

Thanks

Using the proper extension with the 10-17 would be more critical as it's a dome, the 60 macro is behind a flat port and not really affected by the corner issues associated with a dome. The 2 extensions have about a half inch difference, so for the Tokina, you can't substitute one for the other, but if your 60 with 1.4 TC fits behind your flat port, it should focus fine, maybe adding the 18453 extension will give you a bit more room if your lens racks out, if not, then can't hurt to try.

S.

Have you tried using this outside the housing??? Think you might have issues focusing...

If it's the "older" Nikon 60mm Macro, that lens works fabulously with the Kenko 1.4. I actually like it better than using the 105mm since it focuses faster. The "newer" Nikon 60mm won't auto focus with the Kenko 1.4.

On the Tokina 10-17 FE, I agree with Stewart, port length will be critical to getting good focus with it.

JP

Thanks for the quick replies. I do indeed have the older 60mm and have used the TC with it.

My next question would be if the Aquatica port lock to lock the extension to the dome is necessary?

I use the same extension for my 60 + 1.4 TC as for the 105mm -- the 18453. Here's a thought -- if you put the 1.4 TC on the Tokina 10-17mm, it uses the 18453 extension too, but you'll be in Close Focus Wide Angle territory instead of true fisheye.


JP