IOptron IPolar Manuel utilisateur

iOptron®iPolarTM Electronic Polar Scope

Operation Manual

Product #3339

Ver. 2.50 2021.1

iOptron reserves the rights to revise this instruction without notice. Actual color/contents/design/function of a product may differ from

those described in this instruction manual.

1. Connect iPolar to a PC

(1) Connect the iPolar Electronic Polar Scope (iPolar) to one of your computer USB port;

(2) The iPolar has embedded driver. It will install the driver automatically if it is connected to the

computer first time. It may take some time to install the firmware. An icon should be shown on

Windows right bottom corner while firmware is installed.

(3) Check the Windows Device Manager. There should be an iOptron iPolar under Cameras

2. Software Requirement and Installation

(1) This instruction is for iPolar 2.50 or later

(2) Goto www.ioptron.com to download iPolar software and save on your computer

(3) The iPolar software needs Windows 7, 8.1, 10 or later version, 32 bit or 64 bit operation system,

with .NET Framework 4.8 or later version.

3. iPolar Set Up

3.1. Adjust Equatorial Mount Pointing Direction

Set the counterweight shaft at the lowest point (Zero Position). Adjust the altitude to your latitude.

Roughly point the mount to the north (or south if located in southern hemisphere).

NOTE: The iPolar has a 13° field of view, FOV. Please make sure that the mount RA axis is pointing

to TURE north (TRUE south) within ±6°.

3.2. Connect iPolar in Software

(1) Run downloaded iOptron iPolar software (3339_iOptron_iPolar.exe) to bring up the polar

alignment main menu. Resize the window to fit your computer screen.

(2) Select display Language, either English or 中文(Chinese)

(3) Click on “Connect” button to connect the iPolar to the computer. The software will start initializing

the process if the camera is connected successfully.

NOTE: If the software cannot connect to the camera, please check your computer camera settings.

Make sure to change "camera privacy" settings to allow apps to use the camera.

3.3. Initial Settings

Click on Settings to bring up Settings window.

3.4. Set Location and Atmospheric Parameters

Enter Manually

(1) Click on Change button

(2) Enter location info, i.e., latitude and longitude number (GPS coordinates). Northern

hemisphere is “+”, southern “-“ for latitude; eastern “+”, western “-“ for longitude.

(3) Enter atmospheric parameters, i.e., temperature and barometric pressure. If the observation

site is near equators (lower latitude, N10° ~S10°), or is at high elevation (3000 meter or higher

above sea level), please enter the barometric pressure and temperature as precise as

possible.

Otherwise you may choose default atmospheric settings, just click on Default Atmospheric

Parameters. The default value is 10°C and 101325Pa.

(4) Click Confirm to complete the location setting.

Read from an ASCOM Supported iOptron Mount for Location Info

NOTE: You’ll need latest firmware and iOptron Commander, as well as .NET 4.8 and beyond. Make

sure the mount is connected to the computer via ASCOM. Otherwise, this won’t work.

(1) Click on Settings

(2) Click on Read Location from Mounts

(3) An ASCOM Telescope Chooser window will occur, if the mount is ASCOM supported and

connected to the computer. Select correct mount ASCOM driver from the pull-down menu and

click OK.

(4) Click OK to complete the location setting.

3.5. Take Dark Frame

Take the dark frame image of the camera. This will mark the bad pixels of the camera, if there is any,

and camera dark current under different ambient temperature.

Click on Take Dark Frame. Follow the instruction on the screen to complete the process.

You may check Auto-Load Last Dark Frame box to load the dark frame automatically. However, we

recommend to take the dark frame when performing polar align. If the software does not plate solve,

please retake the Dark Frame.

3.6. Set Camera Center

For most mounts, you DO NOT need to perform this step to set the Center of Camera. It is only

needed if an iPolar cannot be rotated with the mount RA axis, such as SkyTracker and SkyTracker

Pro.

Click on Input Center of Camera,

Enter 0480.0 in X and 0640.0 in Y, then click Confirm.

4. Polar Alignment

4.1. Check Settings

Check the iPolar parameter settings, such as GPS location and Dark Frame. The following screen

indicates the Dark Frame is missing.

4.2. Check Image Display

When the mount RA axis is pointing to the pole region, the location parameters are set correctly, and

a dark frame is taken, stars should be seen on the screen when the lens cover is removed.

One can check the iPolar camera during day time by viewing the RAW image. By using a short

exposure, such as 1 ms and checking the RAW image, you should see a fuzzy reversed image when

you point the iPolar to an indoor object.

You may see stars when outside under good weather condition with a long exposure, such as 250 ms

or 500 ms.

4.3. Plat Solving

After checking camera settings and status, uncheck the RAW image. The software will start to Plate

Solving the pole region. A real time image with white dots on black background will be displayed after

imaging processing.

Please check the real time instruction under the Connected box on top-left corner. If it displays “xx

stars detected. Plate solve succeed!” There is no need to adjust the exposure time. Otherwise,

increase the exposure time if it indicates too little stars, or decrease the exposure time when too

many stars displayed.

NOTE: the field of view (FOV) of an iPolar is about ±6°. So it can only cover the area of about 6°

around the pole. If the mount RA axis is pointed far away from the pole, the plate solve may not be

successful, or the pole will be jumping around.

4.4. Determine Camera Center and Locate Virtual Pole

When the Plate Solve is successful, the software will start to determine the iPolar camera

center/mount RA axis and locate the virtual pole. As shown in aforementioned picture, if the Plate

Solve succeeds, click on “Confirm Position 1” button. A confirmation window will be popped up.

Click on OK to confirm. Do not adjust the tripod or mount ALT/AZI position after confirming position

one. Otherwise, the polar alignment will be failed.

If you are lucky enough that the RA axis is aligned to the Pole, you’ll see both the cross (camera

center) and the circle (virtual pole)! Otherwise, follow the on-screen instruction to use hand controller

or iOptron Commander to rotate the mount in RA. The software will confirm the position 2

automatically during rotation. The closer the RA axle is to the pole, the smaller the rotation angle is

needed. Click OK to close the position 2 confirmation window.

The software will display the virtual pole with a maroon circle and camera center a red cross.

If the virtual pole is far away from the RA axis and can not be displayed inside the screen, an arrow

will show where it is located.

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