Solar Eyepieces
The long focal lengths of
most dedicated solar telescopes do best with low
apparent field of view (AFOV) eyepieces. The is sun fixed at
.5 degrees and the light cones for front mounted filters are
around f/8. Rear mounted filters are at f/30.
Ultra wide field
eyepieces of 70 to 100 degrees AFOV will require much
more precise pupil alignment than those of a forgiving 40 -
50 degrees AFOV eyepiece.
Bottom line: the cheapest Plossl gives a great view of the
sun!
Lunt
Solar Zoom
7.5mm - 21.5mm Zoom
40 - 53 degrees AFOV
15mm
eye relief
This eyepiece does exactly what it was designed to
do: show off the sun. An excellent performer on all
solar scopes!
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Coronado CEMAX and Barlow
AFOV 52 degrees
20mm eye
relief
Another sure fire winner for
the sun. Low AFOV give you excellent range of
movement with your eye. Almost no blackouts due to
misaligning your eye with the exit pupil.
The
Barlow lens cell can be unscrewed and attached to
the Lumenera SKYnyx camera. This allows you to reach
focus and still magnify the sun. Also helps to
reduce Newton's rings. |
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Meade 56mm Series
4000 Super Plossl
A mandatory eyepiece with rear
mounted hydrogen-alpha filters. Gives a great view
with either the 2X or 4X telecentric lens. Has a
slight edge over the Tele Vue 55mm.
Meade 56mm Super Plossl
52 degrees AFOV
21mm eye relief
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