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Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long
Top-Down Porthole, Extra Long

Top-Down Porthole, Extra Long

52 reviews
$ 49.99

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.

The Porthole features a silicone band for extra grip, and lens standoffs to protect the acrylic from scratches when set face-down.

Inner diameter of the housing is approximately 4" and supports a wide range of lens sizes.  The housing length is 7" overall, and the barrel depth is 6-3/8" to the inside of the acrylic lens.   This allows compatibility with external-focus/zoom lenses and large macro lenses.

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
4.8 Based on 52 Reviews
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Filter Reviews:
PB
01/28/2021
PONG B.
United States United States
Simple but great

Easy to use and effective with filter gel.

JC
12/25/2020
john c.
United States United States
Perfect for my tank!

Great price! Received on time!

GG
12/06/2020
Geri G.
United States United States
don't buy

The port hole cracked on it first use and is now unusable.

12/07/2020
Avast Marine Works

Sorry to hear this. Please email us a picture and we will replace it free of charge.

RD
11/24/2020
Roy D.
United States United States
Great for pictures

The extra long is great for pictures of corals on the sand and back of a wide tank

SV
11/24/2020
shawn v.
United States United States
Great product

Everything i have ever gotten from you get from you guys is always great!