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AstroGoods Mirror Cells
For
6 " to 13.1" primary mirrors.
Designed dimensionally
to your mirror specifications for optimal performance.
6", 8" and
10" mirror cells with calaculated optimal support points. No clip
intrusion in light path.
Front:
adjustable flat black acrylic retaining ring.
Rear: collimation
knobs and lock screws.
Fan insert
cutouts also available.
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Cells are manufactured
individually,
designed to mirror diameter, thickness, focal length, and secondary
size dimensions. This allows calculating the optimal support points
for top performance.
Requirement: Premium mirror cells need a tube inside diameter
1" larger than the primary mirror.
Our new retaining system eliminates intrusive mirror clips without
stressful gluing. A 1/8" thick black acrylic ring extends 1/8"
over the mirror front, retaining the mirror. The ring is supported
by 1/4" bolts to within 1/16th inch of the mirror edges at
120 degree spacing. Add adhesive tape to bolt and softly prevent
lateral movement. Eliminating intrusive mirror clips provides a
perfectly clear circular aperture for sharper imaging by (reducing
star flaring) or curing turned down visual edge softness. The
tiny magnitude loss is imperceptible to the naked eye, and can also
cure any turned down "image softening" edge. And
our upcoming spider masks take aim at elimination of diffraction
spikes in your star images for glare free views.
Type
|
Description |
Price
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6"
Cells
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SMC6K |
Standard
Mirror Cell Kit. |
$65
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SMC6F |
Standard
Mirror Cell Finished |
$80
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8"
to 13.1" Cells
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PMCK |
Premium
Mirror Cell Kit |
$149
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PMCKF |
Premium
Mirror Cell Kit with fan inset |
$159
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PMCF |
Premium
Mirror Cell Finished |
$164
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PMCFF |
Premium
Mirror Cell Finished with fan inset |
$174
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Kits
arrive assembled. Just disassemble, fine sand and paint or finish,
then reassemble. The
mirror cell at left is shown assembled for fit, prior to sanding.
Materials and manufacture:
Dimensions
and weight:
Retaining
ring NEW!:
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Now
made from laser cut 1/8" black acrylic. (Replaces
wood ring shown).
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Eliminates
mirror clips for a perfectly round mirror face,
no intrusions.
- Overhangs
mirror edge by 0.125". Magnitude reduction is trivial.
- Mirror
cannot fall out through opening.
- 3
black 1/4-20 nylon post pass though acrylic seated into
cell.
- Nylon
screws are safe, designed to touch outside edge of primary.
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Mirror
prevented from lateral movement during vertical
to horizontal.
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Eliminates
any visible mirror clip flare.
Rear
plate:
What
you receive and need:
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