Canon 93517 - Manual (Page 8)

8
LV Eyepieces: 1 1 /
4
"
These Vixen brand eyepieces (6 to 8 elements) are a
new breed, using the rare earth glass lanthanum in
one of their field lenses, for almost total freedom
from any visual aberrations. All focal lengths have a
comfortable 20mm of eye relief. Even when using
the 2.5mm LV eyepiece on a telescope, you’ll have
eye relief of 20mm! These eyepieces also feature soft rubber eyecups, rubber
coated bodies, and fully multicoated lenses for optical excellence.
Focal Length Item # Apparent Field
2.5mm 3714 45°
4mm 3715 45°
5mm 3716 45°
6mm 3717 45°
9mm 3718 50°
10mm 3719 50°
12mm 3865 50°
15mm 3756 50°
20mm 3757 50°
25mm 3758 50°
LV Zoom Eyepiece: 1 1 /
4
"– #3777
This super premium zoom eyepiece has a focal length of
8mm to 24mm. It is the finest zoom eyepiece for low to
medium power observing. It’s an excellent zoom eye-
piece that performs superbly, with fully multicoated
surfaces. It offers an apparent field of 40° at 24mm and
60° at 8mm. Eye relief ranges from 15mm to 19mm.
Cross Hair Eyepiece: 1 1 /
4
" – #93304
This eyepiece is of the Kellner design, with a focal length of
20mm. It’s ideal for centering alignment stars when using digital
setting circles or computerized telescopes. A useful all-around
eyepiece for many applications, including terrestrial observing. It
is fully coated and has an apparent field of 43°.
Deluxe Zoom Eyepiece: 1 1 /
4
" – #93306
The Deluxe Zoom 6.5mm to 18mm 1 1 /
4
" eyepiece is a
recent design that has rapidly become the finest
zoom eyepiece ever offered for medium to high-
powered observing. This phenomenal eyepiece is
multicoated and extremely lightweight, weighing
just 5 ounces. It offers an apparent field of 38.5° at
18mm and 60.5° at 6.5mm. Eye relief is 11mm, even
at the highest power.