Canon 93517 - Manual (Page 6)

6
Economy Eyepieces: .96" and 1 1 /
4
"
Celestron offers these very economical
eyepieces to expand your viewing options.
They are all simple eyepiece designs —
Ramsden (SR & F) and Huygens (H & HM)
but perform quite well on f/8 or slower
telescopes. The optics are all glass and
they’re priced to make a complete range of
powers easily available.
Focal Item # Item # Eye Apparent
Length .96" 1 1 /
4
" Relief Field
4mm – SR 93201 93220 3mm 28°
6mm – F 93202 93221 3mm 28°
8mm – H 93203 93222 5mm 30°
12.5mm – H 93204 93223 8mm 30°
20mm – H 93205 93224 8mm 32°
25mm – HM 93206 93225 10mm 32°
Terrestrial .96" Erecting Eyepiece – #93216
This 1.5x eyepiece can be used on any telescope with
a .96" focuser to achieve an image correctly oriented
from top to bottom (rather than upside-down, as
most eyepieces display an image). Especially useful for
daytime terrestrial observing.
Super Modified Achromatic (SMA)
Eyepieces: .96" and 1 1 /
4
"
The SMA design is an improved version of the
Kellner eyepiece. SMAs are very good, economi-
cal, general purpose eyepieces that deliver a wide
apparent field, good color correction and an
excellent image at the center of the field of view.
The eyepieces are fully coated for maximum
contrast. Celestron offers a range of SMA
eyepieces in both .96" and 1
1 /
4
" sizes.
Focal Length Item # .96" Item # 1 1 /
4
" Eye Relief Apparent Field
6mm 93105 93371 4mm 52°
10mm 93108 93372 6mm 52°
12mm 93109 93373 7mm 52°
17mm 93110 93374 13mm 52°
25mm 93101-A 93007-A 14mm 52°
1 1 /
4
" models
.96" models
E
YEPIECES