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SBIG STC-7  CAMERA 

USER’S MANUAL

 

14

 

 

2 - Operating the SBIG STC-7 camera with MaxIm LT 

The MaxIm LT application allows full configuration and control of the SBIG 

STC-7 camera. Calibrating files, automating imaging sequences, logging, and 
various image processing tasks can all be performed. Please note however that 
since MaxIm LT and MaxIm DL both share the same Help file, not all features 
detailed in that file will be enabled in MaxIm LT. Full feature access requires 
MaxIm DL Pro. 

The procedures in this chapter are intended as a basic introduction to 
connecting and operating the STC hardware. Consult the Help file for further 
information on specific parameters, detailed procedures, and various tutorials. 

2.1 Connecting the STC Camera to MaxIm LT 

The following is the basic MaxIm LT procedure used to configure and connect 
to the STC camera. Launch the MaxIm LT application. 

1.

 

Click the Camera Control icon 

 or press Ctrl-W to open the 

Camera 

Control

 form and click the 

Setup

 tab. 

 

Содержание SBIG STC-7

Страница 1: ...SBIG STC 7 CAMERA USER S MANUAL 1 SBIG STC 7 Imaging Camera User s Manual Version 1 02 September 25 2020...

Страница 2: ...apparatus complies with Canadian ICES 003 European Union Compliance to the Electromagnetic Compatibility Directive This product is in conformity with the protection requirements of EU Council Directiv...

Страница 3: ...the Hardware 10 1 4 Testing the Camera 13 2 Operating the SBIG STC 7 camera with MaxIm LT 14 2 1 Connecting the STC Camera to MaxIm LT 14 2 2 Basic Imaging Procedure 18 2 3 StackProTM Subexposure Func...

Страница 4: ...ers and firmware 38 Appendix C Troubleshooting 40 Appendix D Technical and Warranty Support 41 Appendix E Compatible software products 42 Appendix F Concepts and Terminology 43 IMPORTANT Please read t...

Страница 5: ...CCD models the STC 7 features higher sensitivity 78 QE versus 56 significantly lower read noise 2 5 e versus 9 3 e and 20X faster readout While a single exposure can equal CCD dynamic range the combin...

Страница 6: ...Effective Full Well 80 000 e Read Noise 7 6 e For comparison our STF 8300M CCD camera sports typical read noise of 9 3 e with a full well depth of 25 000 e In the medium gain 16X stack mode the STC 7...

Страница 7: ...ures SmartCooling active temperature regulation to 0 1 degrees C for high calibration stability Integrated filter wheel with custom L R G B Ha SII OIII Dark filters High speed USB 3 0 interface USB 2...

Страница 8: ...Green o Blue o Hydrogen alpha 7 nm pass o Sulphur II 6 5 nm pass o Oxygen III 6 5 nm pass o Opaque 0 transmission for taking dark frames Installed desiccant plug T Thread lens mount M42 x 0 75 2 Nose...

Страница 9: ...mber to register for the MaxIm LT application Use your camera s serial number for this If your camera is authorized for a free license you will be automatically emailed a license key 3 Insert the supp...

Страница 10: ...filters plus an opaque filter used to take dark frames Follow this procedure to install the filters 1 Place the camera on a firm flat surface with the filter wheel facing up 2 Remove the four indicat...

Страница 11: ...III o Slot 8 Dark opaque filter for taking dark frames NOTE The dark filter MUST be in Slot 8 5 Replace the filter retainer and secure it with the eight Allen screws you removed in step 3 6 Replace t...

Страница 12: ...do not connect it at this time for initial testing of the camera Attach the power supply cable between the POWER connector and the power supply The connector clicks into place in the camera body Pull...

Страница 13: ...Connector pinouts for details on creating a custom power cable 3 Open MaxIm LT and connect to the camera by following the procedure in Section 2 1 Connecting the STC Camera to MaxIm LT 4 Take a set o...

Страница 14: ...ailed in that file will be enabled in MaxIm LT Full feature access requires MaxIm DL Pro The procedures in this chapter are intended as a basic introduction to connecting and operating the STC hardwar...

Страница 15: ...aging form opens 3 Click the Camera Model drop down Select DL Imaging 4 Ensure that the AO selector parameter is set to Off a Click the Advanced button The DL Config form opens This form allows you to...

Страница 16: ...Im DL Help file and at https diffractionlimited com help maximdl SBIG_Gen_3 htm Click OK to confirm your camera selection and close the DL Config form 5 Click OK to accept the settings and close the S...

Страница 17: ...d to the Camera Control form 12 Leave Camera 2 set to No Camera 13 Click the Connect button to establish camera communications 14 Enable the camera cooler by clicking the On button 15 Click the Cooler...

Страница 18: ...he form displays the following 2 Click the Options menu and select Camera Settings Applicable settings for the STC 7 camera include Use Ext Trigger This is not selected by default Refer to Appendix A...

Страница 19: ...order by default in MaxIm LT and correspond to the installation order suggested in the Filter installation section If you chose to install the filters in a different order you can change a slot name...

Страница 20: ...ollowing Autosave Filename Enter the base filename e g Area A you want to use for the sequence of images Each image file taken will use this name appended with an individual frame number for example A...

Страница 21: ...over six times greater The STC 7 automatically performs the subframe exposures internally so they appear from the outside to be a single exposure The camera also automatically adjusts the number and d...

Страница 22: ...t going to cause sensor saturation you may wish to avoid the extra read noise for short exposures You may therefore wish to increase the Subframe Exposure target to 10 seconds If you are taking very l...

Страница 23: ...ions can provide a huge improvement in the signal to noise ratio resulting in much greater sensitivity Normalizing these variations also provides a truer representation of the subject in the working i...

Страница 24: ...dom noise produced by the square root of 2 approximately 1 414 This means the hot pixels produce significantly more noise Since the noise is random and therefore unpredictable it cannot be removed in...

Страница 25: ...must be set to the same as your Light frames Repeat Set to the number of exposures you want Click OK when done 5 Click the Start button to begin the sequence NOTE Since the STC 7 camera does not have...

Страница 26: ...uniform light source and an exposure is taken To avoid non linearity at the top and noise at the bottom of the camera s range the exposure is usually chosen to get an average value of 30 to 50 of the...

Страница 27: ...ick the Autosave radio button to configure a sequence of 10 to 20 identical exposures for each filter you used in your light exposures Configure one slot per filter with the required parameters and nu...

Страница 28: ...ould be another These groups can be automatically generated by scanning a folder or folder tree All image files with matching characteristics are grouped together based on the information in their ima...

Страница 29: ...l to pixel variations in the average accumulation of dark current but it will also increase the random noise in the light frame by 41 If instead you averaged sixteen dark frames together prior to subt...

Страница 30: ...in the same folder that contains the individual calibration files If you choose not to create such master calibration files MaxIm LT will stack the calibration automatically when you calibrate your li...

Страница 31: ...Sigma Factor of 0 5 and Number of Passes set to 3 The remaining Combine parameters and options are detailed in the Help file Set these as required g Click Go to start the stacking process This may ta...

Страница 32: ...StarChaser SC 2 off axis guide camera AO 8A adaptive optics unit requires StarChaser SC 2 Canon and Nikon lens adapters Nosepiece adapters C mount adapter NOTE Vignetting may occur Desiccant plugs Ca...

Страница 33: ...pin mini DIN The diagram shows the pin number identification when looking into the camera connector Pin 1 GND Pin 6 3 3V Out Pin 2 I2C SDA Pin 7 12V Out Pin 3 I2C SCL Pin 8 Trigger Out 0 Pin 4 Trigger...

Страница 34: ...tor Pins 1 3 5 12V Pins 2 4 6 GND NOTES The shell of the connector is connected to ground via 1 Megaohm in parallel with 100 pF and should be connected to the cable shield Power ground is connected to...

Страница 35: ...frame download 50 msec Binning modes 1x1 2x2 Power 12 VDC at 4A maximum Power cable USA European Australian Shutter Electronic plus dark frame slot on filter wheel Temperature regulation Yes Cooling d...

Страница 36: ...If the camera side of a filter requires cleaning remove the filter retainer and gently remove the filter from the carousel handling it only by its edges while cleaning it The sensor chamber window ca...

Страница 37: ...luminum desiccant knob facing upwards 2 The container screws into the side of the camera body Use your fingers and turn it counter clockwise to extract it 3 Remove the O ring from the container and pl...

Страница 38: ...ig stc 7 Click the DOWNLOADS button for your specific camera There you will find a link to the latest version of the utility program Download and run the program New drivers are automatically installe...

Страница 39: ...firm the upload process in any pop up dialogs 9 Wait until the process is completed Do not interrupt the process or it will revert to old firmware 10 When complete power down the camera and power it u...

Страница 40: ...t the USB cable is undamaged and securely attached Avoid using a USB hub if possible If you do need a hub try to avoid putting two cameras on the same hub If you are operating in outdoor ambient tempe...

Страница 41: ...ailable here Technical Support Technical Support http forum diffractionlimited com Technical Support Phone 613 225 2732 Authorized Repair Center Bill Lynch SBIG Service Repair Center 554 Andromeda Dri...

Страница 42: ...s computers only Refer to the Windows Installation section in this guide for details installation MaxIm DL MaxIm DL is a full featured camera control and image processing program available from Diffra...

Страница 43: ...ensional array of very small light detectors referred to as pixels Each pixel acts like a bucket for electrons The electrons are created by photons light absorbed in the pixel During an exposure each...

Страница 44: ...is a technique employed to lower the digitization errors due to residual charge in the readout capacitors of the camera This results in lower readout noise False Color False Color images are images th...

Страница 45: ...gle pixel Doing so decreases the effective resolution but increases relative sensitivity It also shortens the image download time Maximum absolute resolution is determined by the size of an individual...

Страница 46: ...in a finely transparent air mass and conversely poor transparency can occur when there is little or no cloud present Man made light pollution and aerosols i e industrial pollutants volcanic ash pollen...

Страница 47: ...SBIG STC 7 CAMERA USER S MANUAL 47...

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