On Saturday we went for a walk on one of our most favorite routes. The "white" route that goes around the north part of the Kampina near Boxtel. Most of the time of year you see many birds over there. This time we were very lucky to spot a couple of white Herons. This type of Heron is very rare in Holland.
Here's one fishing.....
And another one airborne. This was a very difficult shot because I had my Sigma 500mm F10 mirrorlens attached......
And here's another one in the air.
And fishing again.....
Monday, November 16, 2009
Saturday, November 07, 2009
Astronomyday 2009 in Goirle
Today I visited the astronomy day 2009 in Goirle. It was a nice day where many (both amateur and professional) astronomers gave presentations on what they were currently doing with various astronomy projects.
Here's a presentation of a 200mm Newtonian telescoped that has been converted into a F/15 system with 15% obstruction.
And an improvement to SCT's to prevent stray light effectively by using special baffles and diaphragms.
Amateur radio astronomer on detecting the sun at various wavelenghts.
Professional astronomer on roentgen novae.
An update on the current solar activity.
Here's a presentation of a 200mm Newtonian telescoped that has been converted into a F/15 system with 15% obstruction.
And an improvement to SCT's to prevent stray light effectively by using special baffles and diaphragms.
Amateur radio astronomer on detecting the sun at various wavelenghts.
Professional astronomer on roentgen novae.
An update on the current solar activity.
Wednesday, November 04, 2009
Tuesday, November 03, 2009
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