HOMEPAGE    BACK TO ECLIPSE 2009    BACK Deutsch  English  English

GIF animation of Total Solar Eclipse July 22nd 2009

This GIF animation of Total Solar Eclipse 2009 consists of all pictures shot by the author by a Canon EOS 40D camera.

It's still a not yet fully completed and/or polished raw version.

Processing:
All pictures of this animation have half resolution and are rotated clockwise by 75° that sun's polar axis is roughly perpendicular to the X-axis. They are cropped to 960x768 pixels with sun (or moon) appearing roughly centered.
After that procedure they were normalized, i.e. darkest pixel is set to black and brightest pixel is set to white. In between these values a linear gradation applies.
The built-in delay between frames is 100 ms which gives a maximum frame rate of 10 pictures/sec (depending on Your browser and computer).

Artefacts:
In case the sun/moon is near the edge of the camera sensor, an underlying black background may be visible outside the original frame.
Inmidst the sequence there are some pictures with a greenish hue. This artefact stems from way too short exposure times and comes to view by the normalizing process: You'll see here the detector's quantum noise :-(
Since the pictures were shot NOT at equidistant times, the animation reflects only an inaccurate timing.


Click into image to view and/or download animation in half resolution Eclipse 2009 Animation (small)
Go back after viewing and/or downloading animation by browser's back button

Legend:
Here (on this page) a downgraded version (240x192 pixels, i.e. 1/8 of full resolution, filesize ~2.2 MB) is displayed as a "thumbnail" to save bandwidth and to speed-up the loading of this page. The actual visible size may be shrunk or blown-up - depending on width of Your browser window (size is set to 60% of window width).

Howto:
Click to image for viewing the half resolution version (size is ~37.8 MB with frame size of 960x768 pixels) !
When the film has completed one whole loop and is starting over to the beginning again You may save it to Your hard disk because now it's already in Your browser's local cache. For saving to disk, please follow the procedures of Your favourite browser.
For viewing of downloaded film file You may use xanim on Linux or other Unix-like systems. I'm sorry, I can't give You some advise for MAC or Winblow$ systems.

Enjoy !
HOMEPAGE    BACK TO ECLIPSE 2009    BACK Deutsch  English  English

Last modified: Sat 27 Feb 2010 15:00:45 UTC © 2010 R.O. Blättner - All rights reserved
Revision 1: Tue 22 Sep 2009 10:00:32 UTC (at blaettner-net.de)