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Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole
Top-Down Porthole

Top-Down Porthole

42 reviews
$ 54.99

 

Take great photos of your aquarium from the top down, the way corals are meant to be viewed! This handy lens housing mounts directly to the barrel of your DSLR lens, allowing you to (carefully) dip the housing in the water and get tack sharp photos without annoying lightbulb reflections or surface ripples.  Using the three thumbscrews to mount the housing on the lens barrel, you can turn the housing to zoom the lens, which can be difficult with traditional top-down photo boxes.

Back by popular demand, our original "shorty" Top-Down Porthole now features attachment mechanisms for nearly every camera available!  Besides the original 3-screw DSLR barrel mount, the optional adjustable C-bracket accommodates nearly every smartphone out there.  Another optional angle mount connects any point-n-shoot camera with a tripod screw mount.  This is a recessed threaded hole in the bottom of your camera that is a standard size (1/4"-20 threading) for mounting to tripods.  

Dimensions: The inner diameter of the housing is approximately 4" and supports a wide range of lens sizes.  The housing length is 4" overall.

Many thanks to our friend Chris Thomas (143gadgets) for the photos taken with the Porthole.  As a professional photographer, he has provided us with valuable feedback during the product's design.

Customer Reviews
4.9 Based on 42 Reviews
5 ★
90% 
38
4 ★
10% 
4
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
0
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BN
03/18/2022
brian n.
United States United States

Turn good photos to amazing

Shooting threw waters surface isn't easy. This made it a breeze

Avast Marine Works Top-Down Porthole ReviewAvast Marine Works Top-Down Porthole ReviewAvast Marine Works Top-Down Porthole ReviewAvast Marine Works Top-Down Porthole Review
CL
01/05/2022
Chris L.
United States United States

Great tool for pics

Straightforward & easy to use. Worked exactly as expected. Got some interesting shots you can’t get straight through the tank.

JW
12/20/2021
Jeremy W.
United States United States

Great product!

Been great so far, it came very dusty though,I think it was from the cardboard box when shipped perhaps wrapping it in plastic would help make it ready to. Go fresh out of the box :) Other than that super happy with the product!!

Avast Marine Works Top-Down Porthole Review
HL
08/17/2021
henry l.
United States United States

Top down porthole is as good

Great item I am happy I bought it.

DV
07/15/2021
doug v.
United States United States

haven't used it yet, but overall great