which port-extension for the nauticam-rig???

HI everyone!

New to the Forum I take my opportunity to solve my "Problem":

My rig is the nauticam-housing for the Canon 550D and the "insect eye port" C60M130 for the Canon 60mm macrolens.

Now I like to use this port with the Canon 100mm macro USM (non L, non-IS).

So the question is:

which portextension (length) do I need for this Combo and the same question when I like to use the 100mm with the kenko 1,4 teleplus 300 DGX - convertor?

The port-Charts at the nauticam-hp do not show this Combo, but I'm sure they will work - just with which port-extensions???

I hope sombody can help...

Best regards, Tom

50mm will be a touch long, but will accommodate the combo.

Hi Ryan,

I tryed the 40mm plus 20 mm and this is quite a little bit too short, because the insect-port inside isn't that long as it looks like....

Any advice is appreciated for my two "problems".... Did anyone try these two combos??

Greets, Tom

Hi Tom, I just double checked, and the #18721 insect eye port I have definitely works with the 50mm extension, with room to spare (I actually put the combo together).

Are you sure this is the lens you are trying?

http://www.usa.canon.com/cusa/consumer/products/cameras/ef_lens_lineup/ef_100mm_f_2_8_macro_usm

There is an older Canon 100 that isn't USM, and isn't internally focusing, and is longer.

Hi Ryan,

confusion solved !

The lens is the same you mentioned; 50mm are perfect!!! And the TK is 20mm so for this Combo 70mm are enough.

Thanks for your Input!!

Tom