AstroGoods Mirror Cells
6 " to 13.1" primary mirrors.
to your mirror specifications for optimal performance.
6", 8" and
10" mirror cells with calaculated optimal support points. No clip
intrusion in light path.
adjustable flat black acrylic retaining ring.
knobs and lock screws.
cutouts also available.
Cells are manufactured
designed to mirror diameter, thickness, focal length, and secondary
size dimensions. This allows calculating the optimal support points
for top performance.
Our new retaining system eliminates intrusive mirror clips, or stressful
gluing. We place a 1/8" thick black acrylic ring 1/8"
over the mirror front, so the mirror can't tip out. The ring is
supported on black 1/4" nylon posts abutting the mirror edges
at 120 degree spacing, preventing unwanted/unnecessary lateral movement
in the cell. Eliminating intrusive mirror clips provides a perfectly
clear circular aperture for sharper images by (reducing
star flaring). 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!
Mirror Cell 6" Kit: (7.6" ID min tube).
Mirror Cell 6" Finished (7.6" ID min tube).
Mirror Cell Kit (8" to 13.1")
Mirror Cell Finished
Mirror Cell Kit with fan inset
Mirror Cell Finished with fan inset
The Premium Mirror Cell shown at left is our first article (prior
to new acrylic ring), assembled to "dry fit" before
arrive assembled, just disassemble, fine sand and paint or finish.
Materials and manufacture:
made from laser cut 1/8" black acrylic. (Replaces
wood ring shown).
mirror clips for a perfectly round mirror face,
mirror edge by 0.125". Magnitude reduction is trivial.
cannot fall out through opening.
black 1/4-20 nylon post pass though acrylic seated into
screws are safe, designed to touch outside edge of primary.
prevented from lateral movement during vertical
any visible mirror clip flare.
you receive and need: