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120deg series
long eye relief eyepieces
The Explore Scientific
9mm 120° Series™ eyepiece really is in a class by itself. The 120°
apparent field of view is unlike anything you have experienced
before. Normally, when we look through hyper wide field eyepieces,
we see a huge swath of the night sky at low magnification. With the
9mm 120°, however, you see even more universal real estate, but you
also see the main attraction, whether it is a nebulae, a galaxy, or
a star cluster, close up and personal. In our opinion, it is the
best of both worlds.
With such a wide
field, you will also notice that objects stay in the field of view
for a long time. This is especially noticeable when your telescope
does not have a drive, like a Dobsonian or a refractor on a grab and
go mount like the Explore Scientific Twilight I. Another great
benefit of hyper-wide eyepieces is the ease with which you can gaze,
not directly at an object, but slightly to either side. This skill,
called using averted vision, is especially helpful when observing
faint objects, because using averted vision puts the image on a part
of your eye that is more sensitive to light, allowing you to see
fainter images.
Explore Scientific
100deg series eyepiece focal lengths
2" focal
lengths:
9mm $1450ea
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