Custom Dome Ports


Over/Under Split Shot Dome Ports

Starting From $1600.00 + P&P

These custom over/under dome ports are the result of 4 years of research and prototyping to get the perfect sizes for creating amazing split shots. They have been tested in all conditions from the arctic to tropical waters!

I design each model using cutting edge 3D design software and every port is constructed using only the best optical grade acrylic and anodized marine aluminium.

The 12” model comes supplied with a neoprene cover. The 16.8 & 18” models come with a neoprene cover, bolt on carry handle and a bracket and strap for attaching counter weights for balance.

For an in depth look at the advantages of over sized dome ports when shooting split shots see my blog post here.



“I have been obsessed with above/below shots since I started photography nearly 30 years ago. Matty’s big dome is by far the best dome I have ever had to capture split shots.  I believe his design and finish is the best on the market right now.”

Tim Mckenna
12” Port to suit AquaTech housing

“Does size matter? When it comes to dealing with the surface of the ocean, bigger is better. Bigger domes make it easier to control the meniscus of the surface and also make it easier to get both halves of the image in focus (because the underwater virtual image is more similar to the above water focus distance with a big dome). Bigger domes also allow you to shoot splits with longer lenses, something that remains underexploited creatively by underwater photographers. As many know, I built my own large domes before Matty Smith made them properly, but as soon as he did I switched to using one of his! The quality of design and build doesn’t just make them nice to own, it ensures the best optical performance. I went for a mid-size dome – something that is not so huge that it requires its own luggage for travel, but big enough to give my shots an edge, when conditions aren’t mill-pond flat”.

Alex Mustard 

12″ Port to suit Nauticam housing


“I’ve long been on a quest to try capture the perfect ‘Great White at Sunset’ shot, and had pondered the advantages of using a purpose made extreme dome to do it! And already with just one quick limited attempt, I’m pretty excited about the potential”.

Andrew Fox – Rodney Fox Shark Expeditions

12” Port to suit Nexus


“Captured with the awesome port made for me by Matty Smith. This port is essential for dynamic close up with incredible depth of field”.

Michael Aw – Ocean Geographic

16.8” Port to suit Seacam


“If you want to capture amazing over/under underwater images then you need one of Matty Smith’s 12” custom acrylic domes for your kit. The large 12” dome captures tack sharp images and the large volume of the dome makes shooting over/unders much more achievable, especially when the surface conditions on the ocean are rough. Matty custom made my dome to specifically fit my AquaTech underwater housing and it is my first choice dome when shooting over/under. Without Matty’s dome I wouldn’t have been able to capture the images I have today.

Jordan Robins
12” Port to suit AquaTech housing

“I’ve been using Matt’s custom dome ports for over 3 years. The large 12” acrylic port opened up new realms for me in terms of under/over ocean portraiture and I couldn’t be happier with the results.
Matt puts everything into designing, testing and manufacturing his products and you only have to look at his own award winning images to know what can be achieved.

I believe anyone wanting to experience this type of image making will benefit greatly from Matty’s premium custom dome ports”.

Warren Keelan

12” Port to suit AquaTech


 “For years like most underwater photographers I would use my standard 9“ Glass Dome with very mixed/frustrating results. Generally ending up with a sharp image above or below the water line but rarely both. After being lucky enough to shoot with a Matty Smith 16.8” Dome I have been really happy with the sharpness that I am able to capture above and below”.

Brett Lobwein

16.8” Port to suit SeaCam