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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

30
$ 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 30 reviews
5 ★
90% 
27
4 ★
10% 
3
3 ★
0% 
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2 ★
0% 
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1 ★
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BM
06/06/2019
Bryan M.
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.

JH
04/23/2019
Jason H.
United States

Top-Down Portal

Excellent product along with great communication from Avast. Use with Nikon D5300 with great results.

DL
04/19/2019
Daniel L.
United States

Game changer for photographing frags

Incredibly happy to finally have a simple solution for getting photos under heavy actinic and flow. Pretty much exactly what I had hoped it would be!

Daniel L. verified customer review of Top-Down Porthole, Extra LongDaniel L. verified customer review of Top-Down Porthole, Extra Long
JB
04/14/2019
Junyoung B.
South Korea

good for me

this is enough long for taking a picture. and yellow filter is useful.