Science In Your Hands!

Telescope Mirror Blanks

Telescope mirror blanks for amateur telescope makers. We have a wide variety of blanks in Pyrex® and Supremax® 33. Both are excellent low thermal expansion borosilicate glass. Perfect for making a high quality telescope mirror to your own specifications.

Items 1 to 10 of 12 total

per page
Page:
  1. 1
  2. 2

Grid  List 

Set Descending Direction
  1. 4.25 Inch Telescope Mirror Blank

    4.25 Inch Telescope Mirror Blank

    $29.95

    A 4.25 inch telescope mirror blank is great size for beginning and experienced amateur telescope makers.
    - Schott Supremax® 33 borosilicate glass - Low thermal expansion - smooth finish on each surface - virtually no bubbles - 3/4" thickness Learn More
  2. 5 Inch Telescope Mirror Blank

    5 Inch Telescope Mirror Blank

    $39.95

    A 5 inch telescope mirror blank is great size for beginning and experienced amateur telescope makers.
    - Schott Supremax® 33 borosilicate glass - Low thermal expansion glass - molded plano x plano, straight sides - few to no bubbles - full thickness (6:1)

    Learn More
  3. 6 Inch Telescope Mirror Blank

    6 Inch Telescope Mirror Blank

    $49.95

    A 6 inch telescope mirror blank is great size for beginning and experienced amateur telescope makers.
    - Schott Borofloat® glass - Low thermal expansion glass - smooth finish on each surface - virtually no bubbles - 3/4" thickness

    Learn More
  4. 8 Inch Telescope Mirror Blank

    8 Inch Telescope Mirror Blank

    $145.00

    An 8 inch telescope mirror blank is great size for beginning and experienced amateur telescope makers.
    - Schott Borofloat® glass - Low thermal expansion glass - polished finish on each surface - virtually no bubbles - 1" thickness

    Learn More
  5. 10 Inch Telescope Mirror Blank

    10 Inch Telescope Mirror Blank

    $200.00

    A 10 inch telescope mirror blank is great size for amateur telescope makers who have previous success in mirror making.

    • Schott Borofloat® 33 borosilicate glass
    • Low thermal expansion glass
    • plano x plano, straight sides
    • virtually no bubbles
    Learn More
  6. 12.5 Inch Telescope Mirror Blank

    12.5 Inch Telescope Mirror Blank

    $390.00

    A 12.5 inch telescope mirror blank is great size for amateur telescope makers who have previous successful experience in mirror making.
    - Schott Supremax® 33 borosilicate glass - Low thermal expansion - plano x plano, straight sides - virtually no bubbles - 1" thickness

    Learn More
  7. 1 Inch Test Plate Blank

    1 Inch Test Plate Blank

    $5.95

    A 1 Inch Test Plate Blank.

    Learn More
  8. 1.75 Inch Test Plate Blank

    1.75 Inch Test Plate Blank

    $7.95

    A 1.75 inch Test Plate Blank

    Learn More
  9. 2.5 Inch Test Plate Blank

    2.5 Inch Test Plate Blank

    $14.95

    A 2.5 Inch Test Plate Blank

    Learn More
  10. 3 Inch Test Plate Blank

    3 Inch Test Plate Blank

    $19.95

    A 3 Inch Test Plate Blank

    Learn More

Items 1 to 10 of 12 total

per page
Page:
  1. 1
  2. 2

Grid  List 

Set Descending Direction