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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

33 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

4.9 Based on 33 Reviews
5 ★
91% 
30
4 ★
9% 
3
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
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SC
11/10/2019
Stephen C.
United States United States

A staple in the industry

The pictures I take using this amazing porthole are out of this world. Night and day from my older pictures.

Stephen Casey verified customer review of Top-Down Porthole, Extra Long
EL
10/01/2019
Eric L.
United States United States

Portal

The new version is great. Glad to see a company that likes to improve on their great products

NB
08/06/2019
Nate B.
United States United States

Works as intended.

I was able to really increase my picture quality using a macro and traditional lens. Only gripe is aligned with others with something protective on the screws to keep it from scratching my lens housing. I do get the screws as is tho allow for a tight grip on the lens. I like how I can still manually focus with this.

BM
06/06/2019
Bryan M.
United States United States

Really good

Well made, especially for the price. Would recommend.

A
05/23/2019
avi

Top-Down Porthole, Extra Long

Excellent: I would definitely buy from you again.