Celestron Neximage 5 Guide de l'utilisateur

Quick-Start and TutorialImaging BasicsRegistax User’s GuideTroubleshootingTable of Contents

11. On the lower bottom there are two additional sliders called Contrast andBrightness, these can be used to prevent the image from becoming toobright

Imaging BasicsCongratulation on your purchase of the Celestron NexImage solar system imaging camera. Parts listYour NexImage comes with the following:

The Basics FocusingAs with all astrophotography, sharp focus is essential for high quality results.Although there are many techniques and devices for

How long to take Streaming VideoOn first thought you may think that the more frames you record the better.However there are some limitation to the dur

13User’s Guide

Input ScreenControls/Features1. Select Input (Button) – Press this button to start selecting images (bmp, jpeg, fits, tiff) or video sequences (avi) f

6. LRGB (checkbox) – This is disabled for B/W processing so only becomes availablewhen you process in color. LRGB allows you to have less color-artifa

Remember it is not necessary (or practical) to manually deselect the low quality frames fromyour sequence. Registax has built-in features that will au

17. Load Flatfield – Pressing this opens a dialog where the user can select a flatfield(bmp, fits) to use in processing. After selecting flatfield a c

Aligning ScreenThe Aligning Screen contains all the controls needed to accurately and automatically register(align) each frame in your series.1. Align

Quick StartMake sure your NexImage comes with all of the following:1. Plug camera into the USB port of your computer.2. Double click the Amcap icon o

6. Resampling – This control allows you to enlarge the images by interpolation to achievesub-pixel quality alignment. This will however reduce process

During optimization the program searches for the "best fit" in a box with a dimension set by the search area control. At every optimization

Setting the FFT FilterThe Registration Properties graph shows a power-spectrum histogram(red- line) where the resolution increases from left to right.

Stacking ScreenThe stacking phase aims at increasing the signal to noise ratio in the final images. When youhave used Align & Stack on the Align P

The effect of both sliders on the total number of images to be stacked will be shown in thelower part of the screen (text).2. Show Stacklist – When th

Image Processing ScreenThis is the most interesting phase of RegiStax. This is where your stacked image is processedwith wavelets. Wavelet processing

2. Wavelet sliders – The sliders run from -5 to 100 in steps of 0.1. The information available for a layer can be seen by pressing the button above th

is done with one of the re-sampling filters and you can choose it directly in the Resize w i n d o w. Also you can go back to the original input image

14. Noise reduction (options panel) –Noise reduction is an advanced featureof Registax. At the wavelet-page underoptions you can set the checkbox &quo

16. Gamma Curve checkbox and Gamma thumbwheel control – In addition to the gamma-controlthis curve allows you to set the gamma-response yourself. Byde

Adjust the Brightness and Gainsettings to make sure the imageis not over or under exposed. In order to control the gain setting, deselect (unchec

Final Processing ScreenMany users wanted to do some simple additional processing after the wavelets before savingthe images.1. Controls – Flip X and F

4. Advanced HLS – This allows the change of hue/saturation/lightness for the differentcolour-bands in the image. You can for instance only saturate th

TroubleshootingThe Registax screens are cutoff on the monitor display.Registax software is best viewed with you monitor set to 1024 x 768 screen resol

The normal audio setting on my computer do not work correctly afterinstalling the software? If you experience any problems with audio devices used wit

10. From the Capture menu, choose Set Time Limit. This determines how long of a video image will be recorded.• Check the Use Time Limit box• Set the t

RegiStax TutorialYour NexImage CD ROM comes with a sample .AVI file which you can use tolearn and experiment with the features of the included RegiSta

4. Now its time to choose which frame from the video file we want to use as a reference. All the other images will be compared and aligned using there

Alignment PageHere you are presented with many different controls that are discussed in detailin the User's Guide. For this tutorial we will only

7. Set the "start" quality filter to 10. This will position the two green lines sothat one is to the left of the blue line and one is to the

Processing PageThe power of RegiStax sits in the usage of Wavelets. This is a special filteringtechnique that is very good for enhancing details in im