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Ha & CaK Sun - 8th May

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Author Topic: Ha & CaK Sun - 8th May  (Read 235 times)
markt
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« on: May 08, 2011, 10:04:36 pm »

In between dodging the torrential showers today I managed to sneek in a couple of shots of the sun...


ha cak montage by Mark Townley, on Flickr

Lots going on still!  Check it out if you can! 

Mark Smiley
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Anton
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« Reply #1 on: May 09, 2011, 07:13:25 pm »

Awesome pics Mark incredible detail must be even better when viewing.
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markt
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« Reply #2 on: May 10, 2011, 07:22:11 am »

Thanks Anton!  Smiley

Only in the Ha (orange) version - the CaK version is in the near ultra violet and taken with a 'homemade filter', this doesn't have the blocking filters that 'commercial' offerings have that make it safe for visual use.  Reason I don't have the blockers the commercial filters do is to get the exposure nice and fast to freeze out the bad seeing, I was shooting at 1/2000s in the above pic.  Most people can't see in CaK light anyway due to the natural yellowing of the cornea with age - in a properly blocked CaK setup I can just see a blue haze of a disk with the hint of spots...  Generally it's only children and people who have had replacement corneas that can see in CaK light.
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