Clouds as the Solar Filter
The partial solar eclipse photography is a very easy task, theoretically. What you only need, is a
safe solar filter and a long focal lens. My Maksutov - Cassegrain telescope was
equipped with the Baader AstroSolar Safety foil. However, thin clouds which filtered the sunshine
caused that the filter was too dark and it was impossible to take pictures because of very long
exposition times. Without the filter it was dangerous to look into the camera. Finally I had to
adjust the telescope using the filter and then take the picture without it. The autoexposure system
of my camera was surely out of range but Agfa Vista film managed the overexposure very well as you
may see on the picture.
Click on the following reference to display the same
image in the maximum quality (837 KB, PNG format).
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| Image | Spe2003_m2_10.jpg |
| Date | 31. 05. 2003 |
| Place | Table Mountain near Mikulov, Czech Republic |
| Optics | Maksutov - Cassegrain MTO 1000a, 10.5/1084 mm |
| Camera | Minolta X-700 |
| Film | Agfa Vista 200 |
| Scanner | Nikon LS 2000 (2750dpi resolution, RGB, 3 × 16bit/pixel, 4 × multisample) |
| Software | Sofo ACC 5.0 |
| Note | Annular solar eclipse visible in the Czech Republic (Europe) as partial one |
| Copyright | © 2003 Miloslav Druckmüller |
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Miloslav Druckmüller
Institute of Mathematics, Faculty of Mechanical Engineering
Brno University of Technology, Czech Republic
druckmuller@fme.vutbr.cz
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Page last update: 19.3.2007
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