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Definitions for
"Barlow"
Keywords:
eyepiece
,
magnification
,
lens
,
nice
,
diverging
a diverging lens mounted at the bottom of a tube the eyepiece fits down into, and effectively cuts the focal length of any eyepiece
observers.org
a nice addition as well, doubling the magnification of your present eyepieces
www2.usenetarchive.org
a specially designed lens that increases the magnification of any eyepiece it is used with
betterviewdesired.com
An extra lens you can add to an eyepiece to amplify the magnification. Usually a 2 times multiplier.
jbnjenny.us
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Keywords:
jackknife
,
bolsters
,
sought
,
knife
,
collectors
A folding knife design that is more than 150 years old. This was an inexpensive knife, always a one or two blade jackknife pattern with longer than normal bolsters, sought after by collectors.
bkcg.co.uk