Image

Baily's beads at the second contact

This image is the result of numerical processing of one Baily's beads image taken with 1/4000 s exposure and 22 more images taken later with various exposure times. These 22 images taken later after the Baily's beads had disappeared were used only for improving the corona contrast with no influence on the image brightest. The processing of such a number of images enables to enhance even the fine details in the corona and to create such an impressive and rather realistic picture.
The biggest problems in image processing were low contrast and diffuse light caused by cirrus cloud and that it was not possible to take long exposure images because of the movement of the ship. Finally the result is much better than I expected shortly after the eclipse.
 
Click on the image or on the following reference to display the higher resolution image version (1.2 MB, PNG format).

ImageEcl2005_2nd_bp226_pub.jpg
Date08. 04. 2005
TimeSecond contact 19:51:19 UT, third contact 19:51:52 UT
Total eclipse duration 33 s
PlaceAboard Discovery ship in South Pacific ocean
CoordinateS 22° 37.19', W 129° 38.67'
ConditionsImages taken through cirrus cloud
OpticsCanon Zoom Lens EF 100-400 mm 1:4.5-5.6 L IS
Set focal length: 400 mm
Image Stabilizer used in mode 1
CameraCanon EOS 1D Mark II digital camera
Exposure1/4000 s to 1/125 s
ProcessingComposition of 23 images processed by means of Corona 3.0 and ACC 6.0 software
Image processing by Miloslav Druckmüller
SoftwareSofo ACC 6.0 with Match II module, Corona 3.0
OrientationThe image is presented in the orientation as it was visible on the sky. The image must be rotated 135° clockwise to achieve the standard orientation i.e. North top, East left
Copyright© 2005 Miloslav Druckmüller

 


Miloslav Druckmüller
Institute of Mathematics, Faculty of Mechanical Engineering
Brno University of Technology, Czech Republic
druckmuller@fme.vutbr.cz
Page last update: 19.3.2007