AstroGoods.com prototype Version 1 cell-extender (shown in photos) was
created at the request of an astute imager who received, easily installed
and tested with excellent results reported:
"Just got in from a three and half hour session outside. Went
This new mirror
cell collimates much, much easier than the stock cell. I had no difficulty
getting the scope well collimated. And I either had a night of great seeing,
or these modifications have significantly improved the image quality that
I'm getting from the scope." - Mike J.
Version 2 (now available)
improvements include lighter weight with fewer parts, spacing to provide
lateral airflow over the mirror, integrated mirror retaining lip (eliminates
front acrylic ring) meaning no mirror clips creating distorting flaring
stainless steel domed mirror supports points with positions calculated
providing optimal support/performance.
This cell replaces the factory designed "Spikes Of Doom"
cell and precisely attaches to the OTA tube back end cell mounting holes.
Specifically for GSO and similar branded 6" telescopes with a 20mm/152mm
thickness/diameter primary mirror.
Pushes mirror face 25mm back and is adjustable from 20-30mm with collimation
bolts. Other positioning by request as a no-cost modification.
PayPal shipping invoice (write for quote) will be sent.