Optimal Temperature for SBIG STT 8300M

Discussion in 'General' started by jerryyyyy, Apr 12, 2017.

  1. jerryyyyy

    jerryyyyy Cyanogen Customer

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    Hello,

    I have been running my STT at -20 rather than -30 because was suggested it mattered little and that it drew less current and system might last longer. I have had problems getting a reliable power supply.

    My power has been reliable now for several months possible due to working of the connection and now have a new scope attached to do some more RGB from a light polluted site (my roof). So we are trying to minimize noise in the system.

    I short a bunch on new -30 darks last night and saw the cooler ran at 50-55% power. When it runs at -20 I see around 25% power.

    Am I OK running at -30? We are analyzing the darks, but is there going to be an advantage?

    Cheers
     
  2. Doug

    Doug Staff Member

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    As you get colder you get incrementally lower dark current - it's diminishing returns. No problem running at 80% power or more, but it's a good idea to leave a reserve so you can maintain the same regulation on warm nights.
     
  3. jerryyyyy

    jerryyyyy Cyanogen Customer

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    Thanks Doug. The Darks and the Bias I ran last night were all over exposed. i must have screwed up the maxim settings. Been a long time since I ran these. Is there a standard for settings somewhere?
     
  4. Doug

    Doug Staff Member

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    Overexposed? Make sure the drivers and firmware are both updated. That might be a version mismatch causing problems with RBI Preflash.
     
  5. jerryyyyy

    jerryyyyy Cyanogen Customer

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    I see in the Maxim release notes:

    SBIG: Added RBI Preflash support for STT series cameras (requires both SBIG Universal Driver and firmware update). Improved threading support for SBIG cameras. Fixed a camera status problem related to camera swapping. Made internal and external shutter operations independent.

    I see sttga.bf2 is 2.58 and current is 2.64. And 4.96 Build 3 is not current....

    I hate to update things. This camera is basically working.... tell me everything will be OK... has there been any problem with ACP?

    I tried to update the driver and says cannot because file in use....
     
    Last edited: Apr 12, 2017
  6. Doug

    Doug Staff Member

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    If the firmware and driver are not in sync you may not be able to control RBI preflash at all.
     
  7. jerryyyyy

    jerryyyyy Cyanogen Customer

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    I tried to update the driver and says cannot because file in use....
     
  8. jerryyyyy

    jerryyyyy Cyanogen Customer

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    Diug, solution was to run as Admin. Updated and system back up and running. Thx.
     

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