background image

28

29

3.  Select 

Orion Parsec High Quality 

in the 

Select Camera pull down 

menu (Figure 24).

4.  Click 

OK and the image should 

appear in color. You can make 
several adjustments to the 

Color 

Balance if needed (see “Color 
Balance”).

5.3. Stacking – 

Combining Images

Combining individual deep sky images 
enhances the detail in the deep sky 
object by improving the signal to noise 
ratio.
We will demonstrate stacking LRGB 
images; however, a similar process 
works for monochrome, one-shot color, 
and RGB image sets.
1.  Select the 

Process menu Stack 

command (Figure 25)

2.  On the 

Select tab, turn on 

Classify by OBJECT and FILTER.

3.  Click the 

FILTER button to set 

up the filter mapping. This will 
determine what filters are mapped 
into which LRGB color channels. 
To change a row, 

click once on 

the 

row, then click once on the 

Filter Color item, and enter a new 
value. This will make sure that your 
filters are automatically assigned 
to the correct group (Figure 26).

4.  If your images have not yet been 

calibrated, turn on 

Mark added 

images as Auto Calibrate. Each 
image will automatically be calibrated as it is needed, using the settings from 
the 

Set Calibration command.

5.  Click the 

drop list on the multi-function button and select Add Folder

Browse to a folder on disk where your images are located. This folder may 
contain images of several different targets, as long as the OBJECT FITS 
keyword is set in each image (during imaging, this is automatically obtained 
from the Observatory Control window if a telescope is connected).

6.  The 

Tree View on the left side of 

the Stack dialog will now show all 
the image files you have selected, 
arranged into groups according to 
their FITS header. You can open 
the groups to view the files by 
clicking on the + sign. If you would 
like to view an individual file, 

right-

click it and select Display Image
Alternatively, using the right-click 
menu select 

Auto Display, and 

any image you click on will be 
automatically displayed.

7.  If necessary, you can move images 

or entire groups by 

dragging 

them. You can set properties for 
groups or individual files using the 
right-click menu.

8.  Select the 

Quality tab (Figure 

27). If you would like to eliminate 
images with out-of-round stars 
caused by bad tracking, turn on 
the 

Roundness check box. The 

Threshold should be set to limit 
how far out of round the star can 
be; for example, 0.1 will throw out 
any image with stars that are more 
than 10% out of round. Click the 
Measure All button, and any bad 
images will automatically receive 
an X in the enable box. You can 
manually override this decision if 
you like, by changing the enable 
box.

9.  Select the 

Align tab (Figure 28). 

If your images have been solved 
using PinPoint Astrometry you may 
wish to use the 

Astrometric align 

mode, which is extremely accurate. 
Alternatively, the 

Auto Star 

Matching mode is fully automatic 
and quite accurate. There are a 
variety of other alignment modes 
available, including manual 
alignment.

Figure 24. 

The 

Convert Color window 

converts raw images taken from the Parsec 
8300C to color.

Figure 25. 

The 

Stack window is a 

powerful feature which automatically 
calibrates, sorts LRGB filtered images, and 
combines your astroimages.

Figure 27. 

The 

Stack window 

can measure the image quality and 
automatically reject the ones which are not 
good enough to combine.

Figure 26. 

Filter Channels.

Figure 28. 

The 

Align tab can 

automatically align (register) your 
images by using 

Auto Star Matching or 

Astrometric functions.

Summary of Contents for PARSEC 10100C

Page 1: ...ec 10100C Color 52078 instruction Manual Providing Exceptional Consumer Optical Products Since 1975 OrionTelescopes com Customer Support 800 676 1343 E mail support telescope com Corporate Offices 831...

Page 2: ...eep Sky Objects 20 5 Image Processing 26 5 1 Image Calibration 26 5 2 Convert Raw to Color For Parsec 8300C and 10100 27 5 3 Stacking Combining Images 28 5 4 Filter 32 5 5 Color Balance 32 6 Multiple...

Page 3: ...ludes 1x1 full resolution 2x2 3x3 and 4x4 This CCD chip offers the unique ability to image in color at 1x1 mode as well as 2x2 mode This is advantageous when imaging with different focal lengths In ge...

Page 4: ...edge darkening may occur Caution Be sure to always firmly tighten the thumbscrew s that secure the Parsec in the telescope focuser or it could fall out and onto the ground If your telescope has T thr...

Page 5: ...plorer 4 or higher required to display on line help High speed USB 2 0 port Power The Parsec requires 12 volts DC 12VDC with approximately 2 amperes of cur rent Power to the entire camera including th...

Page 6: ...he following section of the manual will walk you through the basic features mostly found in the Camera Control Window The Parsec includes a free 60 day trial of MaxIm DL 5 Pro Start by opening MaxIm D...

Page 7: ...it a few seconds for the image to appear It may be over exposed or grossly out of focus Adjust the telescope s focus and adjust the exposure time as needed to get a focused image 4 Look at the Pixel v...

Page 8: ...image has a different histogram depending on how much of the image is bright or dark Directly viewing the histogram of your image in the Screen Stretch Window provides an easy interface for making de...

Page 9: ...se The camera will only download the area you previously selected which makes each image download significantly faster than the whole frame Note If the Parsec is grossly out of focus no object will ap...

Page 10: ...quality of your focus Caution Once you have achieved focus be sure to click the Reset but ton in the Subframe box otherwise the camera will crop all your images into a small square 4 2 Setting the Coo...

Page 11: ...eep sky object into the field of view of your eyepiece If you are using a mount with an accurate computerized go to system you can keep the camera installed in your telescope s focuser without using t...

Page 12: ...iminate most of the camera noise you can take several dark frames average them then subtract them from your astro images also called light images Note Make sure the cooler set point and CCD temperatur...

Page 13: ...flat frames it s a good idea to assign a preset such as F to better organize your different images 4 Set the Seconds to 0 1 for now and click OK then Expose You want the Max Pixel to read somewhere ar...

Page 14: ...s appear in the window 3 Select the Source Folder where you saved your dark frames Figure 23 4 Click Auto Generate and MaxIm DL will automatically find all of your calibration images such as darks and...

Page 15: ...ged into groups according to their FITS header You can open the groups to view the files by clicking on the sign If you would like to view an individual file right click it and select Display Image Al...

Page 16: ...e Add Folder option calibration files are automatically ignored the other methods for adding files will include them Usually you don t want to stack the calibration files automatically since the Set C...

Page 17: ...re a background level adjustment This is accomplished by bringing the background level or bias in each color plane down to zero Each of the Background Level values is subtracted from every image pixel...

Page 18: ...ting of 10 means that the Parsec attempts to track out 100 of the motion whereas a setting of 1 means that the Parsec only tracks out 10 of the motion Usually a setting of around 8 or 9 provides the b...

Page 19: ...mpensation in the mount is turned off On most telescopes the Right Ascension drive likes to have some load pushing against sidereal tracking If the mount is balanced such that it is pulling the mount...

Page 20: ...drift and correct by moving the mount in the appropriate direction To perform the drift method of polar alignment 1 Do a rough polar alignment by pointing the R A axis of the mount at Polaris the Nor...

Page 21: ...ng images of wide field deep sky objects such as the Andromeda Galaxy or the Pleadies star cluster Focal reducers will usually thread onto the nosepiece of the Parsec Barlow lenses increase the focal...

Page 22: ...ith anti reflection coatings Backfocus Distance from T threads 29 24mm 1 15 Weight 900g 32 oz Autoguider capability Yes Mounting 2 nosepiece or T thread Parsec 10100C CCD Sensor Kodak KAI 10100 CXC CC...

Page 23: ...wing two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Changes of modifi...

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