Viz'art

Scubanomad:  we rely on a network of dealers for the distribution of our products, but I am sure that if you go through a dealer, it can be arranged for you to pick up at our factory when you visit us this summer (good timing BTW, we just expanded and updated our production facility with newer, still shinny machinery!)

Actually if Stewart wants to join in, then weather permitting, I’ll have a BBQ lunch thrown in for the occasion.   Blake, of the owners, is quite an accomplished artist with a BBQ grill!

Jean, I know about that... I bought one for the safety of my cameras and lenses during tests. I was referring to 2 extension rings combined, which as far as I know, isn't possible with Aquatica.

Ah, my bad, did not get this part of the post correctly, it is very rare and not really recommended to stack extension normally, as we do have quite a range of extension ring of different length to accommodate most lenses useful underwater. Still I will bring it up at our next production meeting, there might be a way to do that if it"s necessary.

<p>Yes John, often people like the equipment they buy. &nbsp;It's natural. &nbsp;I've tested 3 and seen 4 of the 5D3 housings for my own purposes. As for the twisting port, I'd like to know which one you are talking about since all the housings I tested, S&amp;S, Seacam, Nauticam and Aquatica, all have some sort of port lock. &nbsp;As does Subal. &nbsp;Sure Aquatica can't lock 2 extension rings together, nor can Subal if it's less than 40mm thick.</p>

Drew, just want to let you know that Aquatica has  a locking collar that has been available for quite sometime (# 18469) http://www.aquatica....ings_18469.html it will lock the extension ring to the dome port (the extension being already locked on the housing) this is backward compatible for all our large dome ports apart from the very early one, (its not like we started just 5 years ago, we have been manufacturing ports for over 30 years now), so while the early dome port still fit on today's housing, they just can't be locked in place like the current ones.

@ Scubanomad, if ever you are in Montreal, I will be my pleasure to give you a tour of our manufacture, we are minutes from the airport and its aerospatial complex and my office is directly attached to the shop. (but come in the summer, winter can be a shocking experience up here  ).

Liz, the Canon EF 24-105mm  f/4 lens minimum focusing distance is 1.48'' /.45m from the sensor plane, so that means you will likely require a close up lens (a +2 or +3 with an 8'' to 9.25" dome should be sufficient), this will enable the camera to focus on the projected virtual image, which is closely located in front of the dome port surface. 

The smaller the dome, the closer the virtual images and the stronger the close up lens will need to be.

Flat port are not subjected to this refractive phenomenon, so you could potentially use the 24-105mm + teleconverter behind a flat port and get results, mind you the focus is likely to be dreadfully slow with this combination. 

Pam, The Aquatica close up lenses uses a quick snap mount, it can be installed and removed underwater within second