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SYNGUIDER

Ⅱ

USER'S MANUAL

GETTING STARTED

060613V1

Thank you for choosing the SynGuider. The
SynGuider can guide an equatorial mount
without the help of a computer. It will
improve the image quality and help you
achieve pin-point stars in you long-exposure
photography.

BASIC OPERATIONS

OPERATION UNDER THE NIGHT SKY

SPECIFICATIONS

PREPARING THE SYNGUIDER

Содержание SynGuider II

Страница 1: ...ing the SynGuider The SynGuider can guide an equatorial mount without the help of a computer It will improve the image quality and help you achieve pin point stars in you long exposure photography BASIC OPERATIONS OPERATION UNDER THE NIGHT SKY SPECIFICATIONS PREPARING THE SYNGUIDER ...

Страница 2: ...able Battery Case M42 to1 25 Adapter 1 25 Extension Barrel 1 Please take some time to check your new SynGuider II package and become familiar with each component Some parts are installed on the SynGuider main body out of the box You will need to uninstall them before using the SynGuider ...

Страница 3: ...SYNGUIDER II MAIN BODY A FRONT VIEW REAR VIEW B C D E F 2 G A M42 thread B Image Sensor C Power Jack D USB Port E Autoguider Port F Hand Pad Port G LCD Screen ...

Страница 4: ... be able to accept ST 4 compatible autoguiding signals Connecting Cable You may use the supplied dual RJ 12 plug autoguiding cable if the pin configuration of your motor drive is the same as the diagram shown on the right An alternative cable is required if the pin configuration of your motor drive is different Guide Scope An additional telescope with a M42 0 75 thread or a 1 25 eyepiece holder is...

Страница 5: ... for using a par focal eyepiece to search for a guide star due to its convenience in exchanging the SynGuider for an eyepiece ATTACHING SYNGUIDER TO A GUIDE SCOPE There are two ways to install the SynGuider on a guide scope CONNECTING CABLES Plug the hand pad into the 8 pin RJ 45 connector on the main body of the autoguider Plug one end of the guiding cable into the autoguider port on the autoguid...

Страница 6: ...lly toggle the Dec and Dec signal of the ST 4 autoguider port Menu Mode Scroll between the menu items Data Input Mode Change the parameters Manually Lock Guider Star Mode Move the small pick up crosshair vertically Guiding Mode Set the Dec correction aggressiveness Preview Mode manually toggle the RA and RA signal of the ST 4 autoguider interface Menu Mode The right button is to enter a submenu Th...

Страница 7: ...sor 3 128X128 pixels of the image sensor and 4 64X64 pixels of the image sensor After choosing the level press ENTER to confrim or ESC to keep the previous zoom level ZM STAR tries to use the position of the brightest star in the FOV of the SynGuider as the center of the zoomed image unless the star is too close to the edge of the image sensor ZM CTR always zooms at the center of the image sensor ...

Страница 8: ...xt zone of the LCD screen Use UP DOWN buttons to change the value Press ENTER or LEFT button to confirm If your equatorial mount has no or minimal backlash or if you have done very accurate polar alignment the Dec backlash should be set to 0 NOISE Menu This menu is used to set the cut off value for the noise filter of the image sensor The proper noise level differs from exposure time thus the SynG...

Страница 9: ... If there is no noise spot appear in the image zone of the LCD it might mean that the cut off value is set too high and this might reduce the sensitivity of the SynGuider for detecting faint stars You should reduce the cut off value until you can see some noise dots diversify evenly in the image area ...

Страница 10: ...e mount Very important Do not skip Step 3 Find and lock a guide star LOCKED mode Step 4 Start autoguiding GUIDING mode PREVIEW EXP 100 BRI 35 X 105 Y 68 ZOOM 1 X0 0 Y0 0 The left half of the LCD screen displays text information The current mode The right half of the screen displays the image detected by the sensor The current exposure The brightness of the brightest star The position of the bright...

Страница 11: ...point if you continue to turn the focuser you will see that the dot becomes larger again The BRI reading will increase as the image comes into focus If the BRI reading increases to over 100 use the button to reduce the exposure time to avoid over exposure If the BRI reading still keeps high with minimum exposure try to use a fainter star for focusing 6 Use the ZM STAR menu to change the zoom level...

Страница 12: ...e guide scope now ALIGN SYNGUIDER WITH MOUNT Follow these steps to align the orientation of the autoguider with the moving direction of the two axes of the equatorial mount 1 Turn on the crosshair on the LCD screen using the CROSS menu 2 Adjust the autoguider so that when the equatorial mount is slowly slewing in RA axis the star image moves parallel to either the horizontal or the vertical line I...

Страница 13: ...image zone of the LCD screen becomes blank or too noisy 5 Now is a good time to adjust the exposure time Generally speaking shorter exposure gives better periodic error correction results The BRI reading on the screen is a good reference The minimum BRI reading required for the SynGuider to work stably is 20 Try to bring the BRI reading close to 20 for the best result 6 Adjust the guide scope to b...

Страница 14: ... GUIDING MODE Once the SynGuider is successfully locked onto a star you may active guiding with the GUIDE menu Activate Autoguiding AUTO CAL This is recommended when the telescope has been moved to a new object It will start an auto calibration routine to detect the correct setting of the guiding parameters including the polarity of the control signals and the guiding aggressiveness SynGuider will...

Страница 15: ...tions The guiding agressiveness of RA or Dec axis can be adjusted with the direction buttons on the hand control Use the RIGHT LEFT buttons to increase decrease the RA aggressiveness and the UP DOWN buttons to increase decrease the Dec agressiveness If the SynGuider losses the guide star during autoguiding it will wait until the star re appears or user can press the ESC button to return to PREVIEW...

Страница 16: ...OWER SUPPLY DC 4 5V 14V 150mA a 5V power supply is recommended Power Jack 2 1mm tip positive or USB type B SENSITIVITY Typically the SynGuider II can capture and guide a star with up to the magnitude of 8 5 under the following conditions Regular 80mm aperture refractor 500ms exposure time and good seeing conditions EXPOSURE TIME 2 5 15 30 70 100 200 300 400 500 600 mS ...

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