Your cart
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

Top-Down Porthole

34 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 34 Reviews
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
  • pictures
  • Avast
  • camera
  • DSLR
  • filter
  • tank
  • experience
  • porthole
  • both
  • rubber stand offs
TT
11/25/2020
toan t.
United States United States
Awesome porthole

Works great and I was able to get clear top down photos.

RD
11/24/2020
Roy D.
United States United States
Easy to use

It is very easy to use and helps take great pictures close up inside the tank.

HN
08/25/2020
Huy N.
United States United States
Avast

Liking the top down picture

Avast Marine Works Top-Down Porthole Review
DR
08/20/2020
David R.
United States United States
Great for newbies and experienced

This is a must-have if you’re taking photos of Coral at all! There may be some knock offs on the market but this is a superior product and easy to use no matter your skill level.

EG
08/10/2020
Enrique G.
United States United States
Great quality with Avast!

This is perfect for getting top-down photos. I am always extremely pleased with the products I receive from Avast Marine!