Quote:
Originally Posted by wavelandscott
Plossl is an eyepiece design...there are many other design types. The plossl design can and does come from different manufacturers...each with their own set of QA/QC systems... The best design may be dependent on the scope you intend to use it and the purpose you have in mind. People can and do write books comparing/contrasting the advantage and disadvantages of the different eyepiece designs. Again that debate often gets above my needs. In general terms, a plossl is a pretty good all around eyepiece design that when matched with appropriate QA/QC at the manufacturer level are often good work horse eyepeices...
My two cents...Clear Skies,
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My experience of the plossl design is that once you get down to 10mm focal length or lower, the eye relief becomes a very small distance and you'll have your eyeball pushed very close to the eyepiece. 15mm and above are fine - I love my 20mm Televue plossl. So for these shorter focal lengths, it's worth comparing other designs, eg. the Vixen LV, the various non-plossl Televue, the Pentax and lots of others.