Hi, all,

I just picked up a Sony 2x TC to pair with my Canon 8-15.

Does anyone have 3D plans or a suggestion for a zoom gear?

Here is the exact housing setup:

Nauticam housing

Sony a1

Nauticam N100 to N120 35.5

Nauticam N120 30mm + 20mm Extensions

Nauticam 140 dome

Lens assembly order:

Body > Sony 2x TC > Metabones > Canon 8-15

The gear teeth would need to line up with the zoom knob on the N100 to N120 adapter.

I have the zoom gear for the 1.4x TC, but the Sony is a completely different size and in an entirely different position in the assembly.

Thanks!

chip

Hi Chip,

Are you sure the right extension for Canon+2xTC is 50mm?

I use it with 60mm extension (35mm&25mm) and Dreifish even suggested more, based on his testing (but I get occasional vignetting by sensor stabilization when I take his suggestion)...

In my files I see that for Canon+1.4x Kenko an extension of 50mm is required - your zoomgear should just fit in case you use the 50mm extension (maybe you have to remove the gear teeth wheel from the 35.5mm extension before it fits?).

I do not use a separate zoomgear, but use an extension collar for my regular Nauticam zoomgear (placed in the DIY section for 3D print). I remember faintly that someone (Gudge?) fabricated an entire zoomgear and placed it also there...

Wolfgang

Zoom gear designer mentioned here

Also its suggested that 30mm is enough extension same thread few replies in