Archived posting to the Leica Users Group, 1999/06/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 10:09 -0400 02/06/99, Greg Spanier wrote: >This may be stating the obvious, but one must be VERY careful when looking >at the eclipsed sun either directly or through a viewfinder. Much >radiation is still there from the sun's corona, which can harm the eye >seriously or permanently. The visible light, which causes pain and warns >us to look away is absent, so one can damage one's eye easily without >realizing it till too late. I have been warned not to look at all...I >don't know whether a fleeting glance is safe or no..... > >Greg 1/ --> I remember reading about some technique that involved using a mirror image off a cardboard (Kodak Grey Card ???) to alleviate the risk of eye damage. 2/ I remember looking at one once and, indeed, it left a remanent image for two or so hours, and a real headache: be VERY careful, especially with telephoto SLR and binoculars as the light intensity is multiplied: both of these are PAINFUL and could leave you blind, partially blind... 3/ It was once in fashion to use processed black & white film, a few layers in front of the eyes: what's your opinion ? 4/ Q: Perhaps using a stopped down preview on the SLR to lessen the risk, while composing ? How to get a proper meter reading, then ? Compose, on tripod, then get a reading and bracket in 1 f/stop increments for proper density. AJQ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "Of course, everybody knows pigs rule this World." Miss Piggy, in a private interview leading to her authorized life story.