I was just wondering what eye piece would be best for my telescope to view planets and the moon.
ETX 125-Telescope
Started by mrpoppinfresh, 02/07/2006 11:59PM
Posted 02/07/2006 11:59PM
Opening Post
Posted 02/08/2006 02:56AM
#1
Mark:
Here is my thinking:
You need a selection of eyepieces so that you can optimize the view depending upon the conditions. For planetary viewing with an ETX-125 I would think you would want eyepieces that covered the range from 125x to 250x or 300x in intervals of something like 50x. This would correspond to eyepieces ranging in focal length from 6mm or 7mm upto 15mm.
With the F15 focal ratio, you should be able to use any eyepiece, decent plossls and orthos are good choices at reasonable prices.
jon
Here is my thinking:
You need a selection of eyepieces so that you can optimize the view depending upon the conditions. For planetary viewing with an ETX-125 I would think you would want eyepieces that covered the range from 125x to 250x or 300x in intervals of something like 50x. This would correspond to eyepieces ranging in focal length from 6mm or 7mm upto 15mm.
With the F15 focal ratio, you should be able to use any eyepiece, decent plossls and orthos are good choices at reasonable prices.
jon
Funding Member
