Mirrors, Prisms & Holders

Telescopes Auction
TAL Star Diagonal mirror for Telescope 1, 25" 90 Degree New

TAL Star Diagonal mirror for Telescope 1, 25" 90 Degree New

$99.00
TAL Star Diagonal mirror for Telescope 2 " 90 Degree New

TAL Star Diagonal mirror for Telescope 2 " 90 Degree New

$120.00
Fused silica mirror blank; 4.68" diameter,  by Dynasil Corp.

Fused silica mirror blank; 4.68" diameter, by Dynasil Corp.

$29.95
$49.95
Celestron 90 Degree Star Diagonal 1.25 inch 1-1 4 in. 94115-A

Celestron 90 Degree Star Diagonal 1.25 inch 1-1 4 in. 94115-A

$46.26
10Pcs 2Inch 90-deg Dielectric Mirror Diagonal Adapter for Astronomical Telescope

10Pcs 2Inch 90-deg Dielectric Mirror Diagonal Adapter for Astronomical Telescope

$499.99
1.25" 90-Deg Eyepiece Erecting Prism f Astronomical refractor telescope 31.75mm

1.25" 90-Deg Eyepiece Erecting Prism f Astronomical refractor telescope 31.75mm

$15.00
Celestron 2-Inch XLT Diagonal Mirror for SCT Telescope

Celestron 2-Inch XLT Diagonal Mirror for SCT Telescope

$143.67
40 inch Concave Perkin Elmer Mirror   Collimator on stand

40 inch Concave Perkin Elmer Mirror Collimator on stand

$35,000.00
Telescope Secondary Mirror 3.5 inch

Telescope Secondary Mirror 3.5 inch

$200.00
Vintage Celestron Telescope .965 Inch Erecting Prism Porro Prism

Vintage Celestron Telescope .965 Inch Erecting Prism Porro Prism

$9.99
 dust caps set for 1.25" telescope eyepieces or other accessories - 5 dust caps

dust caps set for 1.25" telescope eyepieces or other accessories - 5 dust caps

$19.48
Astromania 1.25" 45-degree Diagonal Prism

Astromania 1.25" 45-degree Diagonal Prism

$37.78
MEADE ERECT IMAGE ROOF PRIZM #932

MEADE ERECT IMAGE ROOF PRIZM #932

$35.00
$50.00
Telescope PRIMARY MIRROR

Telescope PRIMARY MIRROR

$450.00
Tele Vue 2" 90-deg Enhanced Aluminum Star Diagonal # DSC-8001

Tele Vue 2" 90-deg Enhanced Aluminum Star Diagonal # DSC-8001

$220.00
GSO Elliptical Secondary Mirror - 28mm

GSO Elliptical Secondary Mirror - 28mm

$31.00
Meade 128 3x 1.25 Inches Barlow Lens

Meade 128 3x 1.25 Inches Barlow Lens

$39.95
GSO Elliptical Secondary Mirror - 50mm

GSO Elliptical Secondary Mirror - 50mm

$51.00
GSO 6" f 5 Parabolic Primary and 50mm Secondary Mirror Set for Telescope

GSO 6" f 5 Parabolic Primary and 50mm Secondary Mirror Set for Telescope

$185.00
GSO 6" f 6 Parabolic Primary and 50mm Secondary Mirror Set for Telescope

GSO 6" f 6 Parabolic Primary and 50mm Secondary Mirror Set for Telescope

$195.00
Meade Instruments #918A 1.25-Inch Diagonal Prism

Meade Instruments #918A 1.25-Inch Diagonal Prism

$24.37
GSO 1.25" 45 degree Erect Image Amici Prism Diagonal # PD45

GSO 1.25" 45 degree Erect Image Amici Prism Diagonal # PD45

$32.00
12 1 2 inch (320mm x 45mm) Primary Parabolic F7,  telescope mirror

12 1 2 inch (320mm x 45mm) Primary Parabolic F7, telescope mirror

$610.00
Celestron AstroMaster Accessory Kit Telescope Aperture Lens Mirror case eyepiece

Celestron AstroMaster Accessory Kit Telescope Aperture Lens Mirror case eyepiece

$58.79
18 inch F 4 Ultralight Parabolic Dobsonian Telescope Mirror

18 inch F 4 Ultralight Parabolic Dobsonian Telescope Mirror

$1,200.00
$1,560.00
American Educational Convex Spherical Silver-Backed Glass Mirror,  7.5Cm Diameter

American Educational Convex Spherical Silver-Backed Glass Mirror, 7.5Cm Diameter

$22.15
Solomark 2inch Explorer Enhanced Dielectric Diagonal Mirror with 2inch-1.25in...

Solomark 2inch Explorer Enhanced Dielectric Diagonal Mirror with 2inch-1.25in...

$116.76
Cave Optical 12 1 2 inch Primary telescope mirror

Cave Optical 12 1 2 inch Primary telescope mirror

$400.00
REDUCED PRICE     ####   12 inch THIN EDGE PYREX Telescope Mirror Blank   ####

REDUCED PRICE #### 12 inch THIN EDGE PYREX Telescope Mirror Blank ####

$360.00
The Lumicon 2" Enhanced Aluminum Diagonal

The Lumicon 2" Enhanced Aluminum Diagonal

$99.95
Black Rouge 0.2 micron Ultrafine Polishing Compound 8 oz.

Black Rouge 0.2 micron Ultrafine Polishing Compound 8 oz.

$14.00
Kobalt Telescope Mirror Shaft Extends up to 36 in. NEW

Kobalt Telescope Mirror Shaft Extends up to 36 in. NEW

$11.34
EDMOND OPTICS  -   Parabolic Mirror - 3"  f 6

EDMOND OPTICS - Parabolic Mirror - 3" f 6

$175.00
90 Degree Diagonal Mirror (1.25")

90 Degree Diagonal Mirror (1.25")

$7.91
5x 31.7mm Zenith Mirror 1.25" 90 Degree Dielectric Mirror for Astronomy Telescop

5x 31.7mm Zenith Mirror 1.25" 90 Degree Dielectric Mirror for Astronomy Telescop

$103.99
2x 31.7mm Zenith Mirror 1.25" 90-Deg Dielectric Mirror for Astronomical Telescop

2x 31.7mm Zenith Mirror 1.25" 90-Deg Dielectric Mirror for Astronomical Telescop

$42.99
Meade roof prism set for eyepiece,  telescope experiment

Meade roof prism set for eyepiece, telescope experiment

$3.95
10 Inch Telescope Mirror Blank

10 Inch Telescope Mirror Blank

$17.47
Large penta prism pentaprism part #67= 415 grams,  3 1 8",  2 3 4",  1 7 8"

Large penta prism pentaprism part #67= 415 grams, 3 1 8", 2 3 4", 1 7 8"

$155.00
3x 31.7mm Zenith Mirror 1.25" 90 Degree Dielectric Mirror Astronomical Telescope

3x 31.7mm Zenith Mirror 1.25" 90 Degree Dielectric Mirror Astronomical Telescope

$62.99
3x 31.7mm Zenith Mirror 1.25" 90-Deg Dielectric Mirror Astronomic Telescope Part

3x 31.7mm Zenith Mirror 1.25" 90-Deg Dielectric Mirror Astronomic Telescope Part

$59.21
 dust caps set for 1.25" telescope eyepieces or other accessories - 5 dust caps

dust caps set for 1.25" telescope eyepieces or other accessories - 5 dust caps

$18.19
Telescope Secondary Mirror 4.0 inch

Telescope Secondary Mirror 4.0 inch

$250.00
Telescope Secondary Mirror 2.36 inch

Telescope Secondary Mirror 2.36 inch

$135.00
Meade Instruments #918A 1.25-Inch Diagonal Prism

Meade Instruments #918A 1.25-Inch Diagonal Prism

$44.00
Orion Telescope Accessories 15188 Scope Cloak Refractor Reflector And SCTs

Orion Telescope Accessories 15188 Scope Cloak Refractor Reflector And SCTs

$115.93
Solomark Diagonals 2inch Explorer Enhanced Dielectric Diagonal Mirror With 99%

Solomark Diagonals 2inch Explorer Enhanced Dielectric Diagonal Mirror With 99%

$121.97
Nice 8? Concave mirror optics looks military

Nice 8? Concave mirror optics looks military

$225.00
William Optics 2" 99% Dielectric Dura Bright Carbon Fiber Mirror Diagonal

William Optics 2" 99% Dielectric Dura Bright Carbon Fiber Mirror Diagonal

$139.00
William Optics 2" 99% Dura Bright RotoLock Mirror Diagonal for SCTs

William Optics 2" 99% Dura Bright RotoLock Mirror Diagonal for SCTs

$219.00
8 inch telescope alignment mirror in cell - military specs - optical flat

8 inch telescope alignment mirror in cell - military specs - optical flat

$495.00
GSO 0.965"   1.25" 45-deg Hybrid Erect-Image Prism Diagonal

GSO 0.965" 1.25" 45-deg Hybrid Erect-Image Prism Diagonal

$34.00
GSO 0.965"   1.25" 90-deg Hybrid Erect-Image Prism Diagonal

GSO 0.965" 1.25" 90-deg Hybrid Erect-Image Prism Diagonal

$34.00
GSO 0.965"   1.25" 90-deg Hybrid Mirror Star Diagonal

GSO 0.965" 1.25" 90-deg Hybrid Mirror Star Diagonal

$33.00
3PC Telescopic Magnetic Pick Up Inspection Mirror Piercing Pin for Inspecting

3PC Telescopic Magnetic Pick Up Inspection Mirror Piercing Pin for Inspecting

$8.98
Arcturus Dielectric Mirror Diagonal 2 Inch

Arcturus Dielectric Mirror Diagonal 2 Inch

$119.95
10" F 4.5 PRIMARY TELESCOPE MIRROR AND SECONDARY MIRROR

10" F 4.5 PRIMARY TELESCOPE MIRROR AND SECONDARY MIRROR

$74.99
10"  F-6 telescope mirror & Protostar secondary mirror & holder-astronomy

10" F-6 telescope mirror & Protostar secondary mirror & holder-astronomy

$800.00
Vintage Pyrex Telescope 12" Optical Convex Mirror Blank 12 D

Vintage Pyrex Telescope 12" Optical Convex Mirror Blank 12 D

$8.99
2.5" Edmund telescope newtonian mirror  - very slight coating blem Hard to Find!

2.5" Edmund telescope newtonian mirror - very slight coating blem Hard to Find!

$3.95
Diagonal adapter 1.25''erecting image prism for astronomical telescope eyepiece

Diagonal adapter 1.25''erecting image prism for astronomical telescope eyepiece

$6.29
Diagonal adapter 1.25''erecting image prism for astronomical telescope eyepieceS

Diagonal adapter 1.25''erecting image prism for astronomical telescope eyepieceS

$6.29
GSO 2" 90 deg Mirror Diagonal for SCT Telescope

GSO 2" 90 deg Mirror Diagonal for SCT Telescope

$73.00
GSO Elliptical Secondary Mirror - 31mm

GSO Elliptical Secondary Mirror - 31mm

$41.00
Meade Instruments 07680 Series 5000 2-Inch Enhanced Dielectric Diagonal Mirro...

Meade Instruments 07680 Series 5000 2-Inch Enhanced Dielectric Diagonal Mirro...

$155.06
Diagonal Adapter 1.25''erecting image prism for astronomicals telescope eyepiece

Diagonal Adapter 1.25''erecting image prism for astronomicals telescope eyepiece

$6.29
Vortex MT-5107 Razor Red Dot Low Rail Mount (3 8")

Vortex MT-5107 Razor Red Dot Low Rail Mount (3 8")

$39.00
Celestron 2-Inch XLT Diagonal Mirror for SCT Telescope

Celestron 2-Inch XLT Diagonal Mirror for SCT Telescope

$142.99
Orion 15188 Scope Cloak - Refractor Reflector and SCTs

Orion 15188 Scope Cloak - Refractor Reflector and SCTs

$108.55
Celestron 2-Inch XLT Diagonal Mirror (for SCT Telescope)

Celestron 2-Inch XLT Diagonal Mirror (for SCT Telescope)

$132.61
GSO 6" f 8 Parabolic Primary and 31mm Secondary Mirror Set for Telescope

GSO 6" f 8 Parabolic Primary and 31mm Secondary Mirror Set for Telescope

$150.00
GSO Parabolic Primary Mirror - 10" f 4

GSO Parabolic Primary Mirror - 10" f 4

$485.00
Optical Glass Triangular Prism,  2-Inches - PP-06307

Optical Glass Triangular Prism, 2-Inches - PP-06307

$11.43
Celestron 2" XLT Diagonal Mirror (for SCT Telescope)

Celestron 2" XLT Diagonal Mirror (for SCT Telescope)

$134.95
Hot 31.7mm Zenith Mirror 1.25" 90° Dielectric Mirror Diagonal for Telescope SALE

Hot 31.7mm Zenith Mirror 1.25" 90° Dielectric Mirror Diagonal for Telescope SALE

$25.66
Edmund Scientific 4 ¼? Palomar Jr Telescope Diagonal Mirror - New Old Stock!

Edmund Scientific 4 ¼? Palomar Jr Telescope Diagonal Mirror - New Old Stock!

$17.00
Brand New Celestron 2-Inch XLT Diagonal Mirror (for SCT Telescope)

Brand New Celestron 2-Inch XLT Diagonal Mirror (for SCT Telescope)

$155.18
Brand New Orion 8727 2-Inch Dielectric Mirror Star Diagonal

Brand New Orion 8727 2-Inch Dielectric Mirror Star Diagonal

$199.64
Diagonal Mirror Adapter 1.25'' 45-Degree Image Prism for Astronomical Telescope

Diagonal Mirror Adapter 1.25'' 45-Degree Image Prism for Astronomical Telescope

$24.99
GSO Parabolic Primary Mirror - 8" f 5

GSO Parabolic Primary Mirror - 8" f 5

$220.00
GSO 8" f 5 Parabolic Primary and 62.5mm Secondary Mirror Set for Telescope

GSO 8" f 5 Parabolic Primary and 62.5mm Secondary Mirror Set for Telescope

$270.00
GSO 1.25" 90 degree Erect Image Amici Prism Diagonal # PD90

GSO 1.25" 90 degree Erect Image Amici Prism Diagonal # PD90

$32.00
GSO Parabolic Primary Mirror - 12" f 4

GSO Parabolic Primary Mirror - 12" f 4

$690.00
GSO 12" f 4 Parabolic Primary and 88mm Secondary Mirror Set for Telescope

GSO 12" f 4 Parabolic Primary and 88mm Secondary Mirror Set for Telescope

$800.00
Meade  Instruments 07202 1.25" # 918A Diagonal Prism for Telescope

Meade Instruments 07202 1.25" # 918A Diagonal Prism for Telescope

$35.98
GSO Parabolic Primary Mirror - 10" f 5

GSO Parabolic Primary Mirror - 10" f 5

$293.00
GSO 10" f 5 Parabolic Primary and 62.5mm Secondary Mirror Set for Telescope

GSO 10" f 5 Parabolic Primary and 62.5mm Secondary Mirror Set for Telescope

$335.00
24" f 4.1 Parabolic Telescope Mirror

24" f 4.1 Parabolic Telescope Mirror

$3,500.00
4 X STAR DIAGONAL LOT   MEADE 1.25   ORION 1" .965    UNBRANDED 1.25

4 X STAR DIAGONAL LOT MEADE 1.25 ORION 1" .965 UNBRANDED 1.25

$14.95
$59.95
DOW CORNING Ultra Low Expansion Glass ULE 7 1 8 X 2.0 Inch Mirror Blank

DOW CORNING Ultra Low Expansion Glass ULE 7 1 8 X 2.0 Inch Mirror Blank

$250.00
GSO Elliptical Secondary Mirror - 62.5mm

GSO Elliptical Secondary Mirror - 62.5mm

$60.00
Orion 8879 1.25-Inch Enhanced Mirror Star Telescope Diagonal NO TAX

Orion 8879 1.25-Inch Enhanced Mirror Star Telescope Diagonal NO TAX

$108.46
Prism Diagonal Image Erector For Telescope 45 Degree

Prism Diagonal Image Erector For Telescope 45 Degree

$29.00
12.5-Inch 9-Point Telescope mirror-cell

12.5-Inch 9-Point Telescope mirror-cell

$235.00
Tele Vue 2" 90-deg Everbrite Star Diagonal # DSF-8002

Tele Vue 2" 90-deg Everbrite Star Diagonal # DSF-8002

$289.00
1.25 inches 90 degree Astronomical Telescope  31.7mm Zenith Diagonal Mirror

1.25 inches 90 degree Astronomical Telescope 31.7mm Zenith Diagonal Mirror

$19.99
RZ900 Digital Laser distance meter telescope range finder golf hunting military

RZ900 Digital Laser distance meter telescope range finder golf hunting military

$179.99
18" f 4.1 Sandwich Parabolic Telescope Mirror

18" f 4.1 Sandwich Parabolic Telescope Mirror

$2,100.00
Dust Caps for 1.25" Telescope Eyepieces Barlow lens or Other Accessories - 5 ...

Dust Caps for 1.25" Telescope Eyepieces Barlow lens or Other Accessories - 5 ...

$300.00
10× Astronomical Accessory 90-Deg Zenith Mirror for 1.25" Telescope Eyepiece New

10× Astronomical Accessory 90-Deg Zenith Mirror for 1.25" Telescope Eyepiece New

$121.99