Lumicon Solar Prominence Filter, 1.5 Angstrom with Energy Rejection Prefilter

The cost-effective Lumicon Solar Prominence Filter System consists of 2 pieces. The first is
the Lumicon S.P.F. Prefilter that blocks all light above red (infra-red, heat) and all light below
red (incl.UV A&B). The Lumicon Prefilter is normally bonded to an optional off-axis mask for
your Meade or Celestron telescopes, or, if you prefer, to your own homemade mask mounted
securely over the front aperture of your telescope. With the Prefilter now mounted over the
front of your scope in its mask or holder, only cool, safe red light enters your telescope. The
second piece of the Lumicon Solar Prominence Filter System is the narrow-bandpass filter in
the main body. This mounts onto the focuser or eyepiece end of your telescope. The Lumicon
1.5 Angstrom bandpass Solar Prominence Filter element is mounted on a tiltable plate in the
filter body to allow "tuning" of the filter element in relation to the incoming cool red light,
picking out an even smaller 1.5 Ang. sliver of the cool red light centered on the 656.3nm
H-alpha line. The contrast gain is such that the sun's prominences become easily visible
jutting of the edge of the sun. Brighter filaments and sunspots can also be seen on the
surface of the sun. Best used with an f-ratio of f/20 or slower (40 or 50 is best, but even up to
f/60) for best contrast. The Lumicon Solar Prominence Filter has a 2" barrel for 2" focusers
and can be adapted for 1.25". Also has camera T-threads and a 1.25" eyepiece viewing
adapter.

LF-SPF05 Solar Prominence Filter 1.5 Ang £637.00
LF-SPF10 58mm Energy Rejection Prefilter £155.00
LF-SPF15 77mm Energy Rejection Prefilter £182.00
LF-SPF20 Off-Axis Mask for 8" SCT £64.00
LF-SPF25 Off-Axis Mask for Meade 10" SCT £82.00
LF-SPF30 Off-Axis Mask for C11 £91.00
LF-SPF35 Off-Axis Mask for 12" LX200 £91.00
LF-SPF40 Off-Axis Mask for C14 £109.00
LF-SPF45 Off-Axis Mask for M14 £109.00
LF-SPF50 Off-Axis Mask for 16" LX200 £116.00

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