Paul McNabb founded the mirror lab in 1997 in order to create the best amateur telecopes possible. Inch for inch our mirrors surpass store bought or commercial grade scopes.

Part of the Saint Petersburg Astronomy Club Home of the 2017 OBS Star Party

Lab Members

Ralph Craig is a lab instructor and has made mirrors from 6 inches to his recently completed 16 inch f5 mirror.

Allen Maroney
has completed three mirrors in the lab between 8 and 18 inches. Allen is also buiding a second robo foucault tester based on James design.

Mike Davis
casts his own mirror blanks.

Irv Nadelhaft

Charlie Mullen ground the mirrors for two years worth of rafflescopes but now has moved on the clear skys of New Mexico.

Lab T-Shirts Available

Lab Alumni

Lenny Remetta

Keevy McAlavy

Bruce Kazcmarik

James Lerch built our robo foucault tester and in house aluminizing chamber as well as a laser interferometry testing setup.

Ron Jones AKA the figurer is about the best mirror maker this side of the mississippi. You can see things in his 8 inch mirror that would impress a takahashi devotee.


Russell W. Porter father of amateur astronomy and founder of Stellafane

Mel Bartels Website
Amateur Astronomer and innovator.

Stardate Website
Good overall observation site.

NGC Astronomers
Former member Matt Terry has his own astronomy club north of Tampa.

Southwest Florida
Astronomical Society

A nearby Astronomy club.

Telescope Software
Ray tracing program for determining all required dimensions for a newtonian reflector. (New Website)

Program for designing mirror cells.

Observing Software
3-D interactive simulation of the solar system and beyond.

Plots the jovian satellites.

Lunar Phase
Shows all the phases of the move and more.

Mirror Lab Home Mirror Making Supplies Robo Foucault Tester Telescope Gallery SPAC Library

  Fused Quartz Mirror Blanks for Sale
Recolabs has around 100 fused quartz mirror blanks for sale. 12.5 inch .8 thick goes for $160 and a
14 inch .8 thick for $200. These are available through ebay.

From one of their auction
pages: "The thermal properties of quartz are 2 times better than Pyrex, it holds a better surface
and it is stronger than Pyrex."

Contact Chris at recolabs for more information or call 503-661-1163

  Eric Finishes his second mirror a 12.5 inch
FYI, Eric finished his mirror today. It tested 1/6th wave or better on all axes tested. This
frees up a table if anyone wanted to work on a mirror???? RC

  Mirror Lab Video for Charlie
Here is 17 minute video of how Robo Foucault works. Allen and Ralph describe how to test a

Watch it in Internet Explorer (wmv) or href=mirrorlab2.wmv>download it (35MB)

  Website Update
The Mirror Lab website has been updated. There are still lots of things to be done with the website
but the majority of pages have been updated. We've added a new feature href=index.php?page=sagitta>a sagitta to focal length calculator.

  Charlie is leaving for the clear skys of New Mexico
Charlie who is pictured
of Charlie polishing his 20inch mirror has moved to New Mexico. He'll have to contend with snow
drifts in the winter but at least he'll have some very good viewing. We'll miss you

  Ginger completes an 8 inch Mirror
Ginger Tiling has finished figuring her 8 inch mirror. It has an f/ratio of f/5.6 and was completed
on October 28th. Congratulations.

  The first ever mother-daughter team is making a 10 inch mirror
Megan sets up the mirror for testing with Robo.

  2007 Raffle Mirror is finished.
The 2007 OBS Rafflescope Mirror was completed. On robo foucault it tested out to 1/15th wave. Of
course we now have to build the scope to hold it.

  Hazel Gehlsen newest Mirror Lab graduate
Congratulations to Hazel Gehlsen who completed an 8 inch f/6 mirror that tested better
than 1/9 wave! Hazel is also the first woman to complete a mirror in the lab. She did such a
good job on her 8 inch we'd thought we'd get her to help out on an 18 inch as well.

  Completed Mirrors For October
Allen 12.5 inch annual refiguring
Tom Spano 14.25 inch Black BVC Glass
Joe Colontonio 10 inch (used a special mesh for his pitch lap)

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