Today I was pleasantly surprised by the delivery man as most deliveries don't happen anymore on a Saturday. Upon opening up the package it was the variable polarizing filter that I ordered as well as a new Orion fall catalogue.
So what does a polarizing filter do? Well it cuts out some of the light that comes into the eyepiece - mostly needed for viewing the moon because it is so freaking bright (-12.6 magnitude to be exact...the sun for comparison is -26.73 magnitude and each order of magnitude is 100x). There are filters that cut out a set amount but I went with the variable version to give me the most flexibility when viewing.
Saturday, August 23, 2008
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