Weight of the Nauticam 140mm Optical glass dome?

[opti420sk]

Really weird question, but wanted to confirm the weight of the 140mm nauticam glass dome (https://www.nauticam.com/collections/n120-ports/products/n120-140mm-optical-glass-fisheye-port-with-removable-shade ) this would be for the canon 8-15mm fisheye lens. On the website it says 1.45kg, but that doesn't seem correct cause of 2 reasons:
1. WWL is around 1.3kg, so that would mean a dome port is heavier than a proper water contact optic?

2. In @Interceptor121 blog, I think i remember seeing something like 600grams in one of the post, but can't seem to confirm that number anywhere else

 

All help appreciated! Thanks

[Alex_Mustard]

Mine is 0.76 KG for the port (with cover). And 1.2KG when it is in the carry case it comes with. 

[opti420sk]

Thank you! Much appreciated. Not sure someone can let Nauticam know their website probably should be updated 😅 ruled out the dome port cause of the massive 1.45kg weight haha

[Guest]

630 grams as in my blog

[opti420sk]

Thanks you @Interceptor121 for confirming!