77mm > 67mm step-down adapter for Nauticam flip mount for CMC?

[pinksquiddiver]

Hello!

I shoot w/ an Olympus OMD E-M1 w/ the Nauticam housing.
I've been using the 12-50 mm lens w/ the CMC, but just purchased a port for my 60mm lens.
I'd like to be able to use the CMC w/ this lens as well but it is 67mm thread vs 77mm thread w/ the 12-50mm.

I have the 77mm Nauticam flip mount for my CMC and was wondering if anyone knows of a step ring that I could use (77 >> 67mm) to be able to use the original flip mount w/ my new port rather than having to buy a new one (they are so expensive

!! )

Thanks in advance for any suggestions!

 

[jlyle]

$20 on Amazon. Amazon.com : B+W Stepdown Ring 77mm to 67mm : Camera Lens Filter Step Up Rings : Camera & Photo

 

[bvanant]

That might work, but it might not, I am using something similar but it does not seat perfectly well. I ended up getting a cheap eBay flip adapter for $40.
Bill

 

[bvanant]

Why not just use the 60 in the 12-50 port?
Bill

 

[Audsred]

I use my 60 in my 12-50 port with the SMC and adapter - works great. Did someone tell you the 12-50 port wouldn't work with the 60 lens?

 

[peterak]

That might work, but it might not, I am using something similar but it does not seat perfectly well. I ended up getting a cheap eBay flip adapter for $40.
Bill

Bill, how did that flip adapter work out for you? $40 sounds a lot better than the $260 Nauticam wants.

 

[bvanant]

The flip adapter (https://www.amazon.com/gp/product/B013LF02E4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) works fine.
You probably lose 5% of the full magnification, but no worries.
Bill