Ventilation?

[PaulClements]

I was just wondering what these side parts are, perhaps for venting hot air from the sensor/processor?

Might these represent a problem in sandy or dusty environments?

 

[Häakon]

Yes, they're for ventilation - they've been a part of the design for a long time now. Jim has said that the inner compartment is isolated from the vents, so the sandy environment is not an issue (I'm not sure how it can be isolated and still be vented at the same time, but at this point I'm not putting anything past them!)

 

[Brook Willard]

My understanding is that the inner area [boards, pixies] is sealed tight from the ventilated area. I expect that there are heat sinks that drop below from the sealed area into the ventilated area where airflow is assisted by fans. That's just me speculating.

 

[PaulClements]

Ah ok, cheers Häakon. I presume the heat of the sensor/processor passes onto a metal plain that diserpates the heat so it can exit through the sides (Or something like that)?

 

[Häakon]

Ah ok, cheers Häakon. I presume the heat of the sensor/processor passes onto a metal plain that diserpates the heat so it can exit through the sides (Or something like that)?

At this point, you know as much as we do as to how the internals work (and I'm not going to be the one to smash mine open to figure it out)! All I know is that the holes at the bottom are indeed for ventilation, and not an added accessory for grating cheese.

 

[Alex Boothby]

Dumb question - are oil based smoke machines ever a problem for electronic cameras?

 

[PaulClements]

Dumb question - are oil based smoke machines ever a problem for electronic cameras?

If they blow up next to them I'd have to say yes, otherwise I haven't a clue

Can't say I've ever been around one (At least knowingly) but if they make a smoke cloud that leaves any amount of oily residue then I wouldn't be too happy sticking my camera too close to it!

 

[chuck colburn]

Those vents are for the bilge pumps.

 

[PaulClements]

Those vents are for the bilge pumps.

And for storing sandwiches?

 

[HD Hildebrand]

All I know is that the holes at the bottom are indeed for ventilation, and not an added accessory for grating cheese.

No cheese grater??!!! Well this just might be the deal breaker.

 

[chuck colburn]

And for storing sandwiches?

Haha
On second thought it's best not to piss-off crafts services.

 

[Mark Thorpe]

My main concern is the potential for heat build up inside an air / watertight marine housing and the implications that may have on underwater shoot durations etc. I'm hoping Gibby will be testing that as and when testing gets underway with #8.

Cheers,
Mark.

 

[PaulClements]

Couldn't water cooling be used in the housing somehow? Lord knows you have an ample supply of the stuff around you.

 

[Mark Thorpe]

Nice idea but I'm not looking to water down my images, haha. I'll have to ask the people looking at designing the housings but also I guess waiting for the results from Gibby's tests would be the first prudent move.

Waiting with bated breath.

Cheers,
Mark.

 

[PaulClements]

There is a computer system that uses copper piping or something and it has cooling pads on the hottest parts of the processors, graphics cards etc, these pipes lead off to the casing of the PC which then dissepates the heat out.

If you could make it do the same thing so the heat goes to the outside of the housing the outside water would keep that pretty cool and hopefully allow the whole thing to run coolly.

But like you say, best to wait for the tests first

 

[chuck colburn]

The Cray computers use to be built in the round and used liquid nitrogen (?) supplied by a big pumping apparatus in a seperate room to keep it cool. They also had a nice comfortable seat around the outside of the CPU . Don't ask how I know. lol

 

[Keith Nealy]

Yeah, I would imagine - good point. something to think about when doing music videos.

 

[Keith Nealy]

Good point...

On the other hand it may keep condensation down. But too much heat and you may need a pressure relief valve. All interesting issues I never had to deal with before. The tests will be very interesting.

 

[Evin Grant]

My main concern is the potential for heat build up inside an air / watertight marine housing.
Mark.

Mark, If you were able to touch any of the cameras set up at NAB you would have been very surprised at how cool they were, even after being on for 8 hours. They were significantly cooler than a Varicam or Cinealta that was left on for that amount of time. They were even cooler than my HVX after I left it on in the bag of a few hours once. I'd be very surprised if this was an issue.

 

[Unwounded]

has anyone heard anything about noise generated by it's ventilation system (fans)? Just wondering how it might affect audio?