Welcome to our community

Be a part of something great, join today!

Log in
  • 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 :)

1st problems in the field...

Status
Not open for further replies.
Don't watch Jarred too close or you will lose your mind! I know from experience...:-)

Jim
 
Jarred Land said:
we do have a fan in the camera.. to take away the heat that is pulled back from the TE plate. The fan does crank down when you hit the record button to an inaudible level (which of course can be over-riden)
Click to expand...

Thanks for the quick reply Jarred. With a decent amount of thermal mass, ramping up and down the fan's velocity should work out fine as the real world duty cycle (at least in conventional narrative and commercial applications) isn't anywhere near 100%. Now in ENG situations, they can have some pretty long run times, but since I don't shoot ENG, what do I care!

Even in the worse case, and with the fan overridden, I doubt that the fan would contribute any more noise than a full sized tape mechanism would so I expect that even with a continuous recording situation this should be a fine solution.
 
Jarred Land said:
we do have a fan in the camera.. to take away the heat that is pulled back from the TE plate. The fan does crank down when you hit the record button to an inaudible level (which of course can be over-riden)
Click to expand...

Nice!!! That answered my next question.
 
TheThe said:
Jarred... Could I ask you a question?... Did you erase one of your earlier posts in this thread or am I loosing my mind? :turned:
Click to expand...

hey look over there ------------>

(delete) (delete)

post? what post?
 
Two questions left:
1. How much power does the peltier draw and how does it effect running time?
2. What about overcranking? The sensor will go up in heat more quickly, so how long can one shoot at at highspeed?
 
Don't ask too many detailed questions since we are still changing things around. We'll keep you posted as we go along.

Jim
 
great feedback, I remember similar problems with my first digital back and I quickly learned to protect them from direct sun and even using canned air in one extreme situation for cooling. Please keep feeding us info from SS's production.
Aloha
-A
 
Jannard said:
If honesty and being open during development of a new program wins you a case study at Harvard, we are all in bad shape.
Click to expand...

Jim, Thank you very much for the news. The information is highly appreciated.

I'm afraid we, indeed, are all bit in bad shape, and the RED project is a nice counterexample to modern economy of high tech products.

I spent a long time thinking before made the order of RED, and simultaneously also wondered how is it possible that developments like this exist at all. Having a science-engineering training my concern is that the economists have spoiled a lot of modern engineering. That is, the preassure to make quick profit have overwhelmed good engineering practice in many situations. For example, you talk now of overheating of the sensor. The very first Canon 1D EOS body had the same problem and it showed up if the exposure time was too long. The result was an akward amount of noise making the photos useless. This was never told to the customers a priori. Or, if one shoots in the progressive mode of the Canon XL H1, there is a delay of about 0.1s in the EVF. This, without saying anything of the chromatic abberration problem, is, of course, very akward in some situations, and again, this had to be found out by the customers themselves.

In the history of economics a tiny company Microsoft managed to do the right choices and become a market leader and dominator in computer business. Another small company Nokia did the same in telecommunications, and it may well be in the future RED will be recognized in Harward as the company which started a revolution in digital cinema by introducing a product which outperformed the outcomes of big companies such as the Sony F23 cinema camera.

In my mind the question is, how did we ever come to this point. My preliminary answer and hope is, behind RED there is a bunch of people having a passion in cameras who were not driven by the preassure to sell the old technology to maximize the profit. Instead, the whole design has started from the point to make the camera the customers need and want to have with a reasonable price and therefore engineering has been number one, not economics.

To sum up, I think we are bit in bad position because we are sold old stuff all the time and everywhere just because of too greedy economical reasoning. In the usual case, there are no alternatives to do it better, for new and fresh ideas seldom met the financial resourses needed to make progress. So, in this light RED may well found its way to academic economy schools. Simultaneously, wish RED manages to keep the same attitude in the future.
 
I've had to fill ziplock's with ice and pack them around F900's and Miranda boxes to keep them working right. And that was INSIDE a soundstage in LA. Heat is the devil of these things, and it sound's like RED's on the right path. I'm so glad it's being worked out now.

Thanks again for all the up to date info. I am so happy about the honesty.
_mike
 
Sensors just don't like heat. It doesn't matter what brand is on the camera.

Jim
 
Man... I go out to see a movie and come back to this.

Thanks for the update from the set, guys...

I know you may not be able to answer this... but are they treating the camera [and takes] as though they were shooting film? With short CF "magazines," their record time before a mag change would certainly be similar to film. Are they sticking to short and planned takes or are they just rolling the camera and massaging the performances to perfection? There are certainly pros and cons to each, I'm just curious for my own sake.

I can't really think of something camera related to ask... so I gotta ask something. :)
 
Better hear it straight from Jim than inaccurate rumours from on set!

Use of the peltier to reduce heat and thus noise makes sense as it is established technology in astro photography.

What is interesting is that both Panasonic and Sony cited heat as a major problem in developing 12bit ADs for HD camcorders yet peltier cooling has never been used in a broadcast or D cinema camera. (unless Dalsa has one tucked away)


Mike Brennan
 
Brook Willard said:
are they treating the camera [and takes] as though they were shooting film? With short CF "magazines," their record time before a mag change would certainly be similar to film. Are they sticking to short and planned takes or are they just rolling the camera and massaging the takes to perfection?
Click to expand...

crucial question.... i was wondering as well...
 
Jim, Do you have a moisture sensor that will detect moisture and turn off the
red camera?

I've tried to be careful, but jumping in and out of air conditioning in a car with the camera in the trunk - I've triggered the humidity warning a few times both in the tropics and skiing no matter how I tried to warm or cool the camera before hand. I'd hate to hurt my RED. Is this issue addressed?
 
Status
Not open for further replies.
Back
Top