Generic replacement for Nauticam m67 port cap

[JustinO]

HI all, a tale of woe (well, minor inconvenience)... I recently lost my port cap for an m67 port when surfacing from a dive. I replaced it at the end of the dive, waited for everyone else to board in the swell, and then handed up my rig.   Not long after, I noticed no cap... it wasn't on the boat, so it's lost.  Lesson learned on securing such vulnerable bits of kit.  

 

But my question is, does anyone have any ideas for a suitable replacement at better prices than a genuine replacement (£22)?  THe part is here: 

 

macro port cap

 

There's a huge selection of m67 caps out there, but any advice to help me get a "first time right" replacement that grips the port well gratefully received... I am sure i am not the first, nor the last to suffer this.   I've drawn a blank on old threads on WetPixel.

 

Cheers in advance

Justin

 

[Davide DB]

Hi Justin,

 

I can confirm that this cheap generic M67 cap bought on Amazon last year for a Yashica vintage lens, fits perfectly on my M67 Nauticam CMC-2...

 

https://www.amazon.it/Ares-coperchio-obiettivo-copriobiettivo-Fujifilm/dp/B078178P8W/ref=sr_1_3_sspa

 

The only "flaw" for our use case is that it does not have a hook for a lanyard but I am sure you can find it on Amazon.

[Davide DB]

Here they are:

 

https://www.amazon.it/Concept-Anti-perdita-Confezione-Sottovuoto-Compatibile/dp/B0CYSLBQKS/ref=sr_1_9

 

 

[JustinO]

Fantastic, thanks Davide

Much appreciate the response - a significant saving indeed! 

[Chris Ross]

Walk into any camera store and buy the off brand caps - they however are very easily dislodged as is the genuine article,  I think tight fitting neoprene cylinder like a stubby cooler and attaching a lanyard to it might in fact be a better option.

[Tobyone]

Have someone 3D print out of TPU. Have a few made. Easily done.  The attached STL file has my name on the cap, but it can be removed(covered up). It fits the 67mm Nauticam port 45.

V3v Port 45 .stl

Edited June 20 by Tobyone
nauticam got spell checked to nautical.

[Davide DB]

12 minutes ago, Tobyone said:

Have someone 3D print out of TPU. Have a few made. Easily done.  The attached STL file has my name on the cap, but it can be removed(covered up). It fits the 67mm Nauticam port 45.

V3v Port 45 .stl 1.59 MB · 0 downloads

 

Does it work by pressure?

[Tobyone]

Yes. The flexible material allows it to hug the rim. You could play with ID to adjust the tightness.

[Tobyone]

Here is an STL for the 67mm cap with a Nautocam Logo. Print with TPU.V2_Nauticam 67mm port cap .stlV2_Nauticam 67mm port cap .stl

[Davide DB]

3 minutes ago, Tobyone said:

Here is an STL for the 67mm cap with a Nautocam Logo. Print with TPU.V2_Nauticam 67mm port cap .stlV2_Nauticam 67mm port cap .stl

 

Thanks. I will add to our list

 

[Tobyone]

Sliced in Cura for cruelty c10 v2. Print logo up with tree supports 10%. Sizing works good for port 45.

Might need to be tweaked for different printers.

[JustinO]

This is what I went with in the end:

Ulbter 67mm lens cap cover

 

It comes in a twin pack, with two elasticated lanyards that slip nicely over the port to help guard against loss.  Fit is very snug.  You can also buy the elastic lanyards separately in case needed. 

Now I have one spare to put on my CMC, and all for about one third the price of an original...

Davide, there's a beer with your name it on it if we ever bump into each other. Cheers.

Edited June 25 by JustinO
typo