Length of Kenko Pro 300 2x teleconverter (please)

Hi,

Can anyone help me and give me the length of a Kenko Pro300 2x teleconverter, for Nikon, once it is locked into the camera.

I have ordered the teleconverter, but not received it yet. I'm trying to work out what port extension to get, to use it with a Nikon 105mm f2.8 nonVR lens, in an Aquatica A200 housing with the standard macro port that I have been using with my 60mm lens.

I have come across a used #18458 extension ring, which is 77mm long once locked in, leaving 46mm for the teleconverter (after allowing 31mm for the difference between the 60mm and the 105mm lens).

I am also trying to work out if I will be able to use the #18679 focus gear (which I don't know the length of) if I get this port extension, and I've been trying to position the pieces and the imaginary pieces together, and take measurements, to see if it will all work, before I go to Lembeh, in two weeks' time......

I'd really appreciate some (fast) help!

Thanks

Hi,

 

Can anyone help me and give me the length of a Kenko Pro300 2x teleconverter, for Nikon, once it is locked into the camera.

 

I am also trying to work out if I will be able to use the #18679 focus gear (which I don't know the length of) if I get this port extension, and I've been trying to position the pieces and the imaginary pieces together, and take measurements, to see if it will all work, before I go to Lembeh, in two weeks' time......

 

Thanks

Sugarfish,

Length is 25mm according to Amazon spec sheet.

My assumption would be that focus ring would need to be 25mm longer also???

Bruce...

Barrel length of my kenko pro300dg 2x for CANON is 43.5mm.

for Nikon maybe differ.

Barrel length of my kenko pro300dg 2x for CANON is 43.5mm.

for Nikon maybe differ.

It is the same for nikon so, with 46mm, it will fit nicely although you won´t have the possibility of adding a dry diopter.

Thanks very much guys.

I have another thin extension ring for when I want to use a dry diopter, so it should all work.

Bali/Komodo/Lembeh here I come, first time for me, can't wait to see if I'm impressed or let down by pigmy seahorses, I have two friends with differing opinions!