By request of scooper, erick and others.
This thread is intended to discuss the topic:
'The Effects of Eye relief using a Barlow Lens and Eyepiece'
I'd be interested in making this an informative topic if possible, so please feel free to provide links and words of experience. They'll be added to this thread topic with approved recommendation by members.
Please let me know if the topic is a little too general and a better title could be used.
So to start with here are a few quick primers.
What is Eye Relief?
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http://en.wikipedia.org/wiki/Eye_relief
What is the Exit Pupil?
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http://en.wikipedia.org/wiki/Exit_pupil
What is a Barlow Lens?
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http://en.wikipedia.org/wiki/Barlow_lens
http://www.hypermaths.org/quadibloc/science/opt0501.htm
(Thanks Karlsson for Barlow lens links)
Gentlemen..start your posting..
