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  1. #1
    Mike_Lewis's Avatar
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    Default The Dark Library



    I'm starting a "Dark Library" (sounds very Harry Potter) for use in DSS. I'm making folders for Camera, ISO, exposure length, and temperature. My question is what range of temperature should I put in each file? More specifically, what kind of temperature span will DSS accept? Will DSS see a 64° dark as match for a 59° light?
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    Default Re: The Dark Library

    As far as I know, DSS doesn't check the temperature. It is up to you to give it compatible darks.

    I use 5 degree C temperature spacing in my darks library.

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  4. #3
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    Default Re: The Dark Library

    Thanks Keith. 9° F it is. Or maybe 10.
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    Default Re: The Dark Library

    I just read through the exif data of the raws, DSS should display this information also. It takes some time but the dark library grows. Initially, I started with 5f separation and have been working to fill in between as time progresses.

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    Default Re: The Dark Library

    I'm with Jeff. I use 5° F separation. Don't know if it needs to be that tight but it certainly doesn't hurt.
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    Default Re: The Dark Library

    Quote Originally Posted by Mike_Lewis View Post
    I'm starting a "Dark Library" (sounds very Harry Potter) for use in DSS. I'm making folders for Camera, ISO, exposure length, and temperature. My question is what range of temperature should I put in each file? More specifically, what kind of temperature span will DSS accept? Will DSS see a 64° dark as match for a 59° light?
    the hardest part will be acquiring shots at a consistent temperature. After an hour the temp seems to level out, so that one is easy. Its the ramp in temperature that is difficult to collect data on.
    - Wes
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  8. #7
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    Default Re: The Dark Library

    Dark Master will sort your darks by temp and ISO and create an library for you, It also will sort your lights and darks and generate a file list to copy directly into DSS.

  9. #8
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    Default Re: The Dark Library

    Al, is dark master an app or are you talking about the dark master algorithm within DSS? I have a temper hum on the USB hub near my camera so I have a reference temperature for all my images. The TemperHum is not calibrated, but I think it will be adequate because the darks and lights will have the same temperature indication deviation.
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    Default Re: The Dark Library

    I might be an anomaly but I have steered away from making a dark library. This is just my experience I have found that reusing darks makes my images have gradients or other imperfections that are introduced when I don't shoot in the exact same conditions as the light frames. I also shoot with a CCD so I am not sure if this same thing happens when shooting with a DSLR. I just have resided myself to taking dark frames at the point when I am finished imaging for the night and just staying up later. I don't take too many darks either...just 5 to 8 depending on how much I am imaging. Anyways, just thought I would throw that into the conversation
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    Phil Leigh's Avatar
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    Default Re: The Dark Library

    Every 6 degrees C doubles the noise. If I was building a dark library (which tha thankfully I am not!) I would go for 3 degrees C intervals.

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