Re: Eyepiece issue


"Dennis Woos" <dpwoos@xxxxxxxxx> wrote in message
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"goodnigh" <goodnigh1@xxxxxxxxxxxxxx> wrote in message
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Just got a 10" Dob with 2" Crayford focuser.
My current eyepieces are 5mm, 7.5, 10, 25 and 40mm
in 1.25" size. Is there any reason to buy 2" eyepieces.
If so, what size would you buy first?
The scope has a 1200mm focal length at f4.7.

mike


Look at this eyepiece calculator:

http://televue.com/engine/page.asp?ID=107

and, if you spend some time studying the results, you will understand a
lot more about eyepiece selection.

Dennis

Ok, thanks for the URL. Very useful.
Now what would you buy for a first and only lens?

mike


.

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