Deep Sky Imager™: The Basics - Meade

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$RB-60 Refracting Telescope - Meade$

Description of Drizzle Developed by NASA for the Hubble Space Telescope, Drizzle has features that dramatically increase the resolution and field of view of the Deep Sky Imager Pro's CCD chip. When the object being imaged would normally need a bigger chip camera, the astrophotographer can enable the Drizzle feature, which produces an effective 4.9 mega pixel camera from the Deep Sky Imager Pro's 640x480 CCD chip with Meade AutoStar controlled telescopes. It may seem that we are exaggerating, so here are the numbers: If a user selects Drizzle and inputs the value of 2 in the Drizzle 'Extended View' setting (effectively making a 2x2 mosaic), and a value of 2 in the ‘Drizzle Resolution’ (which takes multiple undersampled dithered shots of the object and reconstructs the image at higher resolution), they will end up with a picture that is 2560 pixels by 1920 pixels or 4,915,200 pixels. The uncompressed RAM file (in FITS format) will be approximately 10 megabytes. Drizzle is not simply enlarging the image as in interpolation. We move the telescope which in turn moves the image across the CCD sensor to perform seamless precision mosaics. On the next page is a screen shot of Deep Sky Imager Pro’s image capture software called “AutoStar Envisage” with the Drizzle Settings dialog box opened: 46
Description of Drizzle 2 In the Drizzle Settings dialog box you have three options, “Drizzle Resolution,” “Extended View,” and “Pixel Fraction.” Here is what happens as you change each setting: 47
Page 1 and 2: Deep Sky Imager : The Basics Color
Page 3 and 4: Install the Autostar Suite Software
Page 5 and 6: Start the Suite Software If the Aut
Page 7 and 8: To open the Envisage Imaging progra
Page 9 and 10: Key to Envisage Controls 1. Gain an
Page 11 and 12: more... 6. An image should be alrea
Page 13 and 14: What Happens When You Press Start 2
Page 15 and 16: An example of taking a picture of a
Page 17 and 18: The Parfocal Ring 1 It is extremely
Page 19 and 20: Automatic Adjustment Controls 1 Gai
Page 21 and 22: Image Processing Controls 1 Setting
Page 23 and 24: Image Processing Controls 3 Image A
Page 25 and 26: Magic Eye Focus The Magic Eye Focus
Page 27 and 28: Time-Lapse Settings Envisage softwa
Page 29 and 30: Tracking Boxes and Centroids Drawin
Page 31 and 32: Autoguider and Telescope Controls 1
Page 33 and 34: Other Features Autoguider and Teles
Page 35 and 36: Dark Frames is a useful feature for
Page 37 and 38: Make a Movie of the Rotation of Jup
Page 39 and 40: Color Filters and the Black and Whi
Page 41 and 42: 5. Select 2 stars The first star se
Page 43 and 44: 2. Select images Select the first i
Page 45: 11. Final Stretch. Once the image i
Page 49 and 50: Extended View Description of Drizzl
Page 51 and 52: Description of Drizzle 6 51
Page 53 and 54: Multiple Cameras: The latest softwa
Page 55 and 56: DSI II Features The following featu
Page 57 and 58: This document and the Meade Autosta

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