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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Underwater Bubble Blowin' Users Group

nalu said:
fibre glass housing - shooting in relatively warm water - housing is in the water the whole time

anyone trialed different fan settings??
Click to expand...

You can set the fan to maximum constant speed, but I doubt it is going to help. The problem appears that there is not enough heat transfer from your camera and air around it to water. Perhaps changing the design such that the camera would be mounted on a heat conducting element that can transfer the heat outside the housing would help. If you have engineering background, knowing thermal conductivity of fiber glass, thickness and surface area, you can calculate the thermal budget and estimate water temperature which would provide sufficient cooling. Another solution is to make a metal housing, similar to mine :whistling:
 
nalu said:
hi guys,
wondering what fan settings you are using for your cameras in housings

I have my Red in a water housing and very occasionally getting shut down with a FATAL OVERHEAT MESSAGE.

I am currently using the default setting that has the fan on constant but then stops when recording.
I don't need it to stop so can do any setting - usually (not in housing you would go fan full time to keep it as cool as possible but I figure the air that is circulating will be super hot anyway.

What do you think??
Click to expand...

Setting the fan to "Hot" or high or what ever the label is now in the maintenance menu gives 80 minutes of standby time in my experience. Then adding a bag of frozen peas over a Kotex on top of the camera worked great in a PVC housing shooting in the surf in Hawaii.

A solution that seemed to also work was building an aluminum front plate for heat sink on the PVC housing with the fan setting on "Hot" (always on) worked well in the PVC housing in tropical waters in lieu of having to stand in line at the store with a box of Kotex :-)
 
HD-SDI bulkhead connectors

HD-SDI bulkhead connectors

Hi,

Can anyone suggest a manufacturer who makes a high quality simple bulkhead connector to get a HD-SDI signal out of my housing? I have been using a Impulse 6 pin rubber connector which was fine for a regular RF video signal but it does not work with an HD-SDI signal because it is a more sophisticated digital signal? Ideally I want two of them on my housing, one for the top mounted HD monitor signal and one to send an HD-SDI signal to the surface. I want to be able to remove the cable end outside of the housing i.e. so I can remove my top mounted monitor from the housing for transport and also so I don't have to have the surface HD-SDI cable attached when not needed. So I want the connectors to have waterproof caps. I currently also use Subatec connectors to get cableing in and out of the housing but they are non breakable. So I have to wire up a BNC etc each time if we want to add the 100metre cable for surface HD monitoring which is a real drag.

Any suggestions much appreciated.

Thanks

George
www.coralseatv.com
 
I used to have a set of Isotechnic (Isotta) lights from Italy. They had a screw down cap sealed with an o'ring but not wet-mating. Ideal for topside prep and storage options along the lines you mention. Not sure if the company is still alive as I have not used them since the early 90's. Worth checking on though.

Cheers,
Mark.
 
Hi guys,


Shooting a UK feature on RED and looking for the best option for underwater housing (pool scene only, 2 days). The Aquavideo red system looks great are there any available for hire in the UK? Or anything else you would recommend?

If you've already covered this somewhere just point me in the right direction.
 
Nye:

What are your dates. I am trying to get David Groundwater's housing (he wanted custom wings/handle positions) done next week. He is in the UK.

Nye said:
Hi guys,


Shooting a UK feature on RED and looking for the best option for underwater housing (pool scene only, 2 days). The Aquavideo red system looks great are there any available for hire in the UK? Or anything else you would recommend?

If you've already covered this somewhere just point me in the right direction.
Click to expand...
 
Unfortunately it's a little last minute. We want to shoot 18th - 20th of this month. Plus do a test day before that! would be great to get your system in but if it's still in the states might be pushing it a bit?

I am DIT on this and we have a bag that might be ok, i'm just really concerned about condensation and overheating. Much rather get in a specially designed red housing. How does the aqua video handle these problems?
 
8R

8R

CamDiver said:
Hey Ken,
Hows the 8R performing these days? I may be looking into one. Sheesh, on top of a wedding too, the missus will kill me :)

Break a leg.
Mark.
Click to expand...

I must say that the results at every level for the 8R lens are absolutely frickin' amazing. Arri has recently increased the price lately but WOW- the results are stunning!

I am planning on testing a flat port from Aquavideo for my pro housing so that I can shoot a 12mm equivalent underwater with this lens by simply changing the port from an 8" dome.

Geez - from FOV to color rendition to sharpness at any fstop, the 8R rules underwater. The RED 18-50 has also proven to be a workhorse underwater in two of our systems. A great PL lens solution given the price and availability.

I would reduce the size of the diamond ring for the missus and make the investment and pay the piper later. I know one of our colleagues is considering this after shooting with the 8R extensively the past 4 weeks :-)

Photo is a low res jpeg frame grab from redcine taken from the 8R lens shooting RED 4K, 500 ASA, 1/96, build 16, fstop 4 with no light in dark water. The HD 1080p prorez out is stunning!
 
sharkguy said:
Geez - from FOV to color rendition to sharpness at any fstop, the 8R rules underwater. The RED 18-50 has also proven to be a workhorse underwater in two of our systems. A great PL lens solution given the price and availability.
Click to expand...

Any shot (or crop) to see the sharpness?
 
Nye said:
Unfortunately it's a little last minute. We want to shoot 18th - 20th of this month. Plus do a test day before that! would be great to get your system in but if it's still in the states might be pushing it a bit?

I am DIT on this and we have a bag that might be ok, i'm just really concerned about condensation and overheating. Much rather get in a specially designed red housing. How does the aqua video handle these problems?
Click to expand...

Nye,

We used our custom designed housing for the pool scenes in the feature "Samantha Darco". The pool was over 90 deg F. Overheating occurred in 30 min. It's an issue even with an aluminum housing.

In 80 deg F. water the camera has yet to overheat. 84 deg F about 45 min. to overheating. We have a fix that helps for both overheating and condensation.

An external underwater monitor is a necessity for focusing. Remote focus and video feed are better.

If you need our services PM me. We have a complete Red underwater package with DP and AC.
 
sharkguy said:
I must say that the results at every level for the 8R lens are absolutely frickin' amazing. Arri has recently increased the price lately but WOW- the results are stunning!

I am planning on testing a flat port from Aquavideo for my pro housing so that I can shoot a 12mm equivalent underwater with this lens by simply changing the port from an 8" dome.

Geez - from FOV to color rendition to sharpness at any fstop, the 8R rules underwater. The RED 18-50 has also proven to be a workhorse underwater in two of our systems. A great PL lens solution given the price and availability.

I would reduce the size of the diamond ring for the missus and make the investment and pay the piper later. I know one of our colleagues is considering this after shooting with the 8R extensively the past 4 weeks :-)

Photo is a low res jpeg frame grab from redcine taken from the 8R lens shooting RED 4K, 500 ASA, 1/96, build 16, fstop 4 with no light in dark water. The HD 1080p prorez out is stunning!
Click to expand...

Dude.....where's the details in that image? sharpness, detail etc...??? I'm with Pawel on this one....show me the money honey--not just the letters----he he he, just kiddin. Looks totally awsome:bleh:

I think i remember that pond.....was very cool and looked even better on the screen than u/w
 
Nye;

I am based in Norway and can fly to London on short notice with my AquaVideo housing, with or without #1670. So far used on one short, one feature and one cop series and works like a charm. With Nikon or PL mount and HD surface monitor cable.

Let me know if you're interested.

regards,
Amund

Oslo, Norway
 
Snow shoot

Snow shoot

Greetings, We are planning to shoot in Northern Finland in the winter and my director has some concerns about the sub zero weather. Does anyone have any experience shooting in extreme cold?
 
Myself and Ken Corben just shot four weeks in Alaska underwater in temperatures ranging from the mid 30's F. We had no technical issues with the camera, but encountered a few times where we had to deal with fogging inside of the housing---but we did take care of that problem by drying out the housing with a hair dryer and packing it with hot towels---basically removing any moisture that got into the housing just by opening it on the deck. So that was all we encountered.
good luck
 
Two other things you can do for condensation are silica gel packets and also getting canned dry air or nitrogen and shooting it into the housing just before you close it - displacing the moist air.

Johnny/Ken: Question? I think I put vacuum ports in your housings, did you guys pull a vacuum for test and does that help with condensation?

(Note: the idea of the vacuum port is a small bicycle type valve (schrader valve) in the housing. To test that you have a seal, you use a small handheld vacuum pump to pull a vacuum on the housing after you close it. If there are any leaks, the vacuum will drop off quickly. You use vacuum because it is much safer than pressurizing the housing.
 
Hey AquaVideoRed206,

So we are are going to go with the Aquavideo system for our shoot, really looking forward to using it. Hope you can get it sent out to the UK in time. Our back up is 16mm so counting on you guys to keep our shoot RED.

Really appreciate all the help coming forward from reduser and the Underwater Bubble Blowin' Users Group on this.

Nye.
 
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