Quote:
Originally Posted by Danack
Hi guys,
Sorry for asking the same question again, but as I really like being able to see, I'd like to know how if it's possible to view the corona safely e.g.
http://www.telegraph.co.uk/science/s...on-camera.html
From the web page at:
http://xjubier.free.fr/en/site_pages...eExposure.html
The suggested exposure for to capture the corona at f8, ISO100 is between 1/400s for the inner corona and 1" for the outer corona.
That level of brightness wouldn't be visible through eclipse glasses or through solar filter. I'm also not sure the corona would even be bright enough to show up through most projection methods would it?
So is there an approved way of viewing the corona? |
Hi Danack,
The only time that the corona can be seen is during totality.
There is plenty of advice that it is safe to view totality directly that is with the naked eye and NOT using eclipse glasses or any other filter.
EG the Qld Governemnt advice as I have just posted:
http://www.fairtrading.qld.gov.au/sa...cal-events.htm
"The only time that the Sun can be viewed safely with the naked eye is during a total eclipse, when the Moon completely covers the disk of the Sun."
Also the ASA fact sheet at:
http://astronomy.swin.edu.au/~smaddi...et_23rev2x.pdf
"It is safe – and spectacular – to watch the eclipse during the brief period called totality, while the Moon is completely covering the Sun – that is the excitement of this event! However, you must be sure that you are watching at the correct time and are in totality"
Also the NASA safe eclipse viewing website:
http://eclipse.gsfc.nasa.gov/SEhelp/safety2.html
"....the total phase of an eclipse can and should be viewed without any filters whatsoever. The naked eye view of totality is not only completely safe, it is truly and overwhelmingly awe-inspiring!"
So there is no need for any filters to view totality. The view of the Corona is one of the fabulous sights of the an eclipse and is not to be missed.
Rgds,
Terry Cuttle