Buying a porthole

[Snoopdog]

I have a Nikon D800 coming soon with a macro lens. I noticed that a lot of the porthole makers are out of stock, but I did see this one available. Anyone have thoughts on it? I have read the Avast one is rather weak and breaks, reading on past threads. I am looking for opinions or maybe even a brand I have not considered.

https://buildinganobsession.com/shop/camera-tube-pro-stainless-steel

 

[Freakmachine01]

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