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Re: [OM] Eclips info

Subject: Re: [OM] Eclips info
From: Richard Schaetzl <Richard.Schaetzl@xxxxxxxxxxxxxxxxxxxx>
Date: Mon, 05 Jul 1999 22:37:13 +0200
wiliam.wagenaar@xxxxxxxxxxxxxx schrieb:

> I have planned my hollyday so that  I will be able to see the total solar 
> eclips
> on 11-08-99. Of course I want to take some pictures of it. I even bought a 
> book
> about the happening. In this book I only found some info about exposing the
> corona and the sun close to the total phase.
> 
> I would however want to take some pictures of all phases. Can anyone recommend
> some exposure settings? 
 
I found following table on the interesting site:
http://www.intercon-spacetec.com/ava/sofi99/belichtung.html

> 
>                         ASA                          Blende/Aperture    
> 
>                          25      1.4      2      2.8      4      5.6      8   
>    11      16      22
>                          50      2        2.8    4        5.6    8       11   
>    16      22      32
>                         100      2.8      4      5.6      8     11       16   
>    22      32      44
>                         200      4        5.6    8       11     16       22   
>    32      44      64
>                         400      5.6      8     11       16     22       32   
>    44      64      88
>                         800      8       11     16       22     32       44   
>    64      88     128
>                        1600     11       16     22       32     44       64   
>    88     128     176
> 
>      Objekt             Q                       Belichtungszeit/Shuttertime 
> (s)
> -------------------   -----    
> ------------------------------------------------------------------------
 "eclipse"
> Sonnenfinsternis
 "partial"
> Partiell[1] - 4.0 ND   11         -       -       -    1/4000   1/2000   
> 1/1000   1/500   1/250   1/125  
> Partiell[1] - 5.0 ND    8      1/4000  1/2000  1/1000  1/500    1/250    
> 1/125    1/60    1/30    1/15
 "pearl/diamondring effect"
> Perlschnur             12         -       -       -       -     1/4000   
> 1/2000   1/1000  1/500   1/250
> Chromosphäre           11         -       -       -    1/4000   1/2000   
> 1/1000   1/500   1/250   1/125
 "protuberanzes"
> Protuberanzen           9         -    1/4000  1/2000  1/1000   1/500    
> 1/250    1/125   1/60    1/30
 "corona"     "Rs=radius"
> Korona - 0.1 Rs         7      1/2000  1/1000  1/500   1/250    1/125    1/60 
>     1/30    1/15    1/8
> Korona - 0.2 Rs         5      1/500   1/250   1/125   1/60     1/30     1/15 
>     1/8     1/4     1/2
> Korona - 0.5 Rs         3      1/125   1/60    1/30    1/15     1/8      1/4  
>     1/2     1       2 
> Korona - 1.0 Rs         1      1/30    1/15    1/8     1/4      1/2      1    
>     2       4       8 
> Korona - 2.0 Rs         0      1/15    1/8     1/4     1/2      1        2    
>     4       8      15    
> Korona - 4.0 Rs        -1      1/8     1/4     1/2     1        2        4    
>     8      15      30    
> Korona - 8.0 Rs        -3      1/2     1       2       4        8       15    
>    30      60     120

[1] partial covering or no covering of the sun with ND filters!

Some links:

http://www.astronomie.de
http://www.astroinfo.ch/eclipse/
http://www.astro.univie.ac.at/?sofi99
http://www.astro-corner.de.cx
http://www.dwd.de/general/eclipse
http://www.solar-eclipse.org
http://umbra.nascom.nasa.gov/eclipse
http://www.sonnenfinsternis1999.de
http://www.skypub.com/sights/eclipses/solar/partialphoto.html
http://www.astroinfo.org/eclipse/astro/theorie.html
http://www.ks.og.bw.schule.de/html/sofilink.htm
http://sunearth.gsfc.nasa.gov/eclipse/eclipse.html
http://www.exploratorium.edu/eclipse/
http://www.wissenschaft.de/bdw/sofi99/

Regarding your eyes, in German:

http://home.t-online.de/home/RudolfHorn/
http://www.intercon-spacetec.com/ava/sofi99/augen.html

Equipment:

http://www.astromedia-verlag.de/sonnenfinsternis/index.htm

> Is a filter neccesary? 

Definitly, if you value your eyesight.

NEVER EVER LOOK IN TO THE SUN WITHOUT PROTECTION

> (I guess it is, maybe even to
> protect the lens and inside of the body against too much direct sunlight.

Yes, you don´t want to cook your equipment, so put the filter on the
_front_ of your lenses.

> Also I would like to know if other listmembers are planning to see the eclipse
> and where they will go. I will be going to Germany, 

There is a special issue of "Spektrum der Wissenschaft" DM 29 including
an 16x16cm metalized foil.

Regards

Richard


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