Thread: Ideal temperature ? 35C? 40C? 42C?

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  1. #11  
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    Quote Originally Posted by Timur Civan View Post
    Ironing out the Epic-W.

    I've heard a few different things from different people.

    Whats the optimal temprature? I know the dragon liked to run hot, but what does the Helium like?


    mine is on 44 and is good for long takes and if it is very cold outside, somtimes with carshoots and the camera is outside, i close with some tape partly the top fans, to keep it on temperture.
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  2. #12  
    Senior Member Samir Patel's Avatar
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    confirmed mine was on 40
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  3. #13  
    Senior Member Timur Civan's Avatar
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    Quote Originally Posted by Stuart Graham View Post
    I sent my results to RED EUROPE & they confirmed 44 was the sweet spot.
    Way lower noise yes.
    Cleaner, yes.
    "Cooler/Warmer" as in colour temp K? If so: I've not noticed or test it with a 44 vs 39 comparison so that's a confident, no.

    S
    I meant does the physical temprature of 36C vs 44C give you better performance. Well shit. Now i need to recalibrate. 44 it is.
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  4. #14  
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    I just did a quick Helium sensor test using three calibrations, 39C/43C/48C, while over and under exposing from f/2.8 to f/16 the same subject under the same lighting and using the same shutter speed.

    There actually is a visible difference between the calibrations, most noticeable when underexposed and introducing noise, with the 43C calibration looking better overall in terms of colour and noise.

    I wasn't expecting that result.

    Don't have the time or inclination to do more thorough testing, but will be using the 43C calibration from now on.
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  5. #15  
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    Quote Originally Posted by Les Hillis View Post
    I just did a quick Helium sensor test using three calibrations, 39C/43C/48C, while over and under exposing from f/2.8 to f/16 the same subject under the same lighting and using the same shutter speed.

    There actually is a visible difference between the calibrations, most noticeable when underexposed and introducing noise, with the 43C calibration looking better overall in terms of colour and noise.

    I wasn't expecting that result.

    Don't have the time or inclination to do more thorough testing, but will be using the 43C calibration from now on.
    That's great news, I'm not splitting hairs here but the difference between 43 & 44 is worth it. 44 rocks!
    As you tested it's in the underexposed areas where you see the BIG difference.

    Thanks for sharing, Stu '44 all the way' :)
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  6. #16  
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    No worries Stu. I'll do another comparison including 44C as well.
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  7. #17  
    Senior Member Patrick Tresch's Avatar
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    I shoot 46 (on Dragon) to have lower fan noise... If you could put it also in your test? ;-)
    I suppose you do the black shade for every selected temp?
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  8. #18  
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    Just had a look at 43C/44C/45C, going two stops over and three stops under, with ISO800 looking like the proper exposure.

    Manual black-shading for each temp, and making sure the temps stay on the numbers when I record.

    Again, there are differences between all three temps.

    From these and the earlier results, I myself prefer the look of the 43C calibration.

    Too many untested variables here to say anything definitive about it though.

    Don't make any shooting decisions based on these results alone.



    Edit - Removed pics and descriptions to avoid potentially misleading info. The results were valid, but only in and of themselves and as far as that particular test went.
    Last edited by Les Hillis; 09-13-2017 at 05:40 PM.
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  9. #19  
    Moderator Phil Holland's Avatar
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    I mainly run at 43 for the curious.
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  10. #20  
    Senior Member rand thompson's Avatar
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    Thanks for the extensively detailed Tests Les!!
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