Saint Petersburg Astronomy Club - Mirror Lab


We are looking for a new home
As soon as we have the new location set we will post the location and hours here.

Our Founder

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.

04/12/2012 more


  • Ralph Craig - Lab Instructor
  • Allen Maroney - Lab Instructor
  • Ron Jones - The Figurer
  • Mike Davis - Casts Mirrors
  • Dimitri - Support


  • James Lerch - Robo Foucault
  • Matt Terry
  • Charlie Mullen
  • Bruce Kazcmarik
  • Keevy McAlavy

In Memorium

  • Irv Nadelhaft
  • Lenny Remetta

04/12/2012 more


Where the 19th Century Art of Mirror Making Meets the 21st Century

The Saint Petersburg Mirror Lab is a small band of dedicated mirror grinders and telescope makers living in the Tampa Bay area of Florida. We offer a mirror making class for interested persons. We strive to create the best mirrors our home brew technology can muster. This includes robotic foucault testing and laser interferometry.

  Dave is back!
Dave grinding 8in and Brittany grinding 10in

  Brittany with the spherometer
Brittany checking her 10 inch mirror with the spherometer after 240 grit.

  Brittany beveling her new mirror
Brittany beveling the edge of her new 10 inch blank to prevent edge chipping while grinding.

  Mike with students
Mike Davis showing visiting students how mirrors are polished with a sub diameter tool.

  Paul figuring his thin 16 inch mirror
Paul figuring his thin 16 inch mirror with a 5 inch tool. A center over center stroke is used to
parabolize the mirror. By keeping the mirror on the bottom it remains fully supported and flat.

  Mike Davis figuring his light weight 12.5
Mike Davis figuring his light weight 12.5 inch mirror that he made in his home kiln.

  Lenny and his mirror have returned!
Lenny Remetta polishing his 14.5 inch mirror with a subdiameter tool.

  Nicholas and Donna with their finished mirror
Nicholas and Donna with their finished 8 inch better than 1/4 wave mirror. This mirror has a
beautiful polish and edge. Thanks for the Mirror Lab buttons Nicholas!

  Steve Fredlunds wood strip tube
Left: Steve, Irv and Ralph check out the 10 inch mirror cell for Steves wood strip tube. Right:
Paul cuts the focuser hole on the tube.

  Paul's 16 inch mirror being polished
Paul's 16 inch mirror during the Huckleberry Finn polishing phase.

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