Mirrors, Prisms & Holders

Telescopes Auction
William Optics 1.25" 90-deg Erecting Prism Diagonal Helical Focusing M-P90

William Optics 1.25" 90-deg Erecting Prism Diagonal Helical Focusing M-P90

$76.00
Tele Vue 1.25" 60-deg Everbrite Erect Image Diagonal # DPC-6012

Tele Vue 1.25" 60-deg Everbrite Erect Image Diagonal # DPC-6012

$240.00
Dust Caps for 1.25" Telescope Eyepieces Barlow lens or Other Accessories - 5 Plu

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

$17.99
Orion 8763 1 25 Inch Prism Star Telescope Diagonal

Orion 8763 1 25 Inch Prism Star Telescope Diagonal

$86.78
GSO 10" f 4 Parabolic Primary and 88mm Secondary Mirror Set for Telescope

GSO 10" f 4 Parabolic Primary and 88mm Secondary Mirror Set for Telescope

$600.00
GSO Elliptical Secondary Mirror - 88mm

GSO Elliptical Secondary Mirror - 88mm

$132.00
GSO 16" f 4.5 Parabolic Primary and 88mm Secondary Mirror Set for Telescope

GSO 16" f 4.5 Parabolic Primary and 88mm Secondary Mirror Set for Telescope

$1,420.00
SOLOMARK Solomark 2inch Explorer Enhanced Dielectric Diagonal Mirror with

SOLOMARK Solomark 2inch Explorer Enhanced Dielectric Diagonal Mirror with

$117.89
SOLOMARK Solomark 1.25" 45-degree Diagonal Prism

SOLOMARK Solomark 1.25" 45-degree Diagonal Prism

$31.43
SOLOMARK Solomark 1.25" 45-degree Diagonal Prism

SOLOMARK Solomark 1.25" 45-degree Diagonal Prism

$35.75
Smart Astronomy 90° 2" Mirror Diagonal

Smart Astronomy 90° 2" Mirror Diagonal

$49.99
Dust Caps for 1.25" Telescope Eyepieces Barlow lens - USA

Dust Caps for 1.25" Telescope Eyepieces Barlow lens - USA

$12.99
Astromania Dust Caps Set for 1.25" Telescope Eyepieces or Other Accessories - 5

Astromania Dust Caps Set for 1.25" Telescope Eyepieces or Other Accessories - 5

$19.48
Astromania Dust Caps Set for 1.25" Telescope Eyepieces or Other Accessories - 5

Astromania Dust Caps Set for 1.25" Telescope Eyepieces or Other Accessories - 5

$19.48
Steinheil,  large zenith prism,  refractor telescope,  + -1880

Steinheil, large zenith prism, refractor telescope, + -1880

$370.00
Black Rouge 0.2 micron Ultrafine Polishing Compound 8 oz.

Black Rouge 0.2 micron Ultrafine Polishing Compound 8 oz.

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

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

$153.28
Orion 8880 1.25-Inch Dielectric Mirror Star Diagonal

Orion 8880 1.25-Inch Dielectric Mirror Star Diagonal

$119.86
Telescope Secondary Mirror

Telescope Secondary Mirror

$25.00
$37.00
Astromania Dust Caps Set for 1.25" Telescope Eyepieces or Other Accessories - 5

Astromania Dust Caps Set for 1.25" Telescope Eyepieces or Other Accessories - 5

$19.48
Genuine Meade 07210 #932 Erect-Image Roof Prism (For ETX) Telescope Accessory

Genuine Meade 07210 #932 Erect-Image Roof Prism (For ETX) Telescope Accessory

$29.99
$38.99
GSO Elliptical Secondary Mirror - 28mm

GSO Elliptical Secondary Mirror - 28mm

$31.00
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
Dust Caps for 1.25" Telescope Eyepieces Barlow lens or Other Accessories - 5 Plu

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

$12.00
14.25 Dia. x 2 1 8 Telescope Optical Blank Mirror Glass Pyrex

14.25 Dia. x 2 1 8 Telescope Optical Blank Mirror Glass Pyrex

$800.00
StarGuider 2 Inch Diagonal for SCT or Refractors

StarGuider 2 Inch Diagonal for SCT or Refractors

$99.95
45 DEGREE 1.25" CORRECT IMAGE PRISM DIAGONAL FOR TERESTRIAL TELESCOPE USE

45 DEGREE 1.25" CORRECT IMAGE PRISM DIAGONAL FOR TERESTRIAL TELESCOPE USE

$27.99
GSO 2" 90-deg 99% Quartz Dielectric Mirror Diagonal for SCT Telescope

GSO 2" 90-deg 99% Quartz Dielectric Mirror Diagonal for SCT Telescope

$120.00
Telescope Secondary Mirror 3.5 inch

Telescope Secondary Mirror 3.5 inch

$200.00
Telescope 1.25 Inch Erecting Prism Porro Prism

Telescope 1.25 Inch Erecting Prism Porro Prism

$7.99
Dust Caps for 1.25" Telescope Eyepieces Barlow lens or Other Accessories - 5 New

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

$25.35
Meade Instruments #918A 1.25-Inch Diagonal Prism

Meade Instruments #918A 1.25-Inch Diagonal Prism

$55.00
TAL Star Diagonal mirror for Telescope 2 " 90 Degree New

TAL Star Diagonal mirror for Telescope 2 " 90 Degree New

$120.00
William Optics 1.25" 99% Dielectric DuraBright Carbon Fiber Star Mirror Diagonal

William Optics 1.25" 99% Dielectric DuraBright Carbon Fiber Star Mirror Diagonal

$93.00
Telescope PRIMARY MIRROR

Telescope PRIMARY MIRROR

$450.00
William Optics 2" Diagonal Mirror #D-DIG2

William Optics 2" Diagonal Mirror #D-DIG2

$95.00
Tele Vue 2" 90-deg Enhanced Aluminum Star Diagonal # DSC-8001

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

$220.00
Meade 128 3x 1.25 Inches Barlow Lens

Meade 128 3x 1.25 Inches Barlow Lens

$39.95
Meade erect image 45 degree prism for ETX 07210 1.25" #932

Meade erect image 45 degree prism for ETX 07210 1.25" #932

$19.00
$29.00
Orion 90 degree mirror diagonal

Orion 90 degree mirror diagonal

$25.00
GSO 1.25" 45 degree Erect Image Amici Prism Diagonal # PD45

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

$32.00
Meade 932 45 deg. Erect Image Roof Prism

Meade 932 45 deg. Erect Image Roof Prism

$5.00
37IN DIA BK7 OPTICAL FLAT AL MOUNT GLASS TELESCOPE MIRROR BLANK

37IN DIA BK7 OPTICAL FLAT AL MOUNT GLASS TELESCOPE MIRROR BLANK

$35,000.00
10 inch  (250mm x 40mm) F6 Parabolic Primary telescope mirror

10 inch (250mm x 40mm) F6 Parabolic Primary telescope mirror

$365.00
12 1 2 inch (320mm x 45mm) Primary Parabolic F6 telescope mirror

12 1 2 inch (320mm x 45mm) Primary Parabolic F6 telescope mirror

$575.00
Erecting Porro Prism for Celestron Telescope and others

Erecting Porro Prism for Celestron Telescope and others

$15.00
18.75in FUSED SILICA TELESCOPE PCX LENS IN VACUUM CELL SCHUPMANN SOLAR QUARTZ

18.75in FUSED SILICA TELESCOPE PCX LENS IN VACUUM CELL SCHUPMANN SOLAR QUARTZ

$12,500.00
Tele Vue 1.25" 90-degree Everbrite Dielectric Diagonal

Tele Vue 1.25" 90-degree Everbrite Dielectric Diagonal

$137.00
14.75in FUSED SILICA TELESCOPE SOLAR QUARTZ ASPHERICAL CORRECTED LENS ASPHERE

14.75in FUSED SILICA TELESCOPE SOLAR QUARTZ ASPHERICAL CORRECTED LENS ASPHERE

$8,000.00
Telescope PRIMARY MIRROR : 160mm

Telescope PRIMARY MIRROR : 160mm

$69.99
Celestron telescope refractor maksutov eyepiece .965" porro prism w caps Vixen

Celestron telescope refractor maksutov eyepiece .965" porro prism w caps Vixen

$6.99
William Optics 1.25" 45 degree Erecting Prism

William Optics 1.25" 45 degree Erecting Prism

$10.49
Meade roof prism set for eyepiece,  telescope experiment

Meade roof prism set for eyepiece, telescope experiment

$3.95
TeleVue  Everbrite Mirror Diagonal 2" - Satin Finish with brass clam ring

TeleVue Everbrite Mirror Diagonal 2" - Satin Finish with brass clam ring

$267.00
New Astromania 2" 45-degree High-quality Erecting Prism Diagonal for Telescope

New Astromania 2" 45-degree High-quality Erecting Prism Diagonal for Telescope

$199.99
5" Telescope Mirror and Mirror Cell

5" Telescope Mirror and Mirror Cell

$24.99
18x12.5x3in Fused Silica Quartz Optical Flat Heliostat Telescope Mirror UV 1 20?

18x12.5x3in Fused Silica Quartz Optical Flat Heliostat Telescope Mirror UV 1 20?

$8,500.00
5 INCH TELESCOPE MIRROR BLANK Borosilicate ( Pyrex )

5 INCH TELESCOPE MIRROR BLANK Borosilicate ( Pyrex )

$24.95
Solomark 1.25" 45-degree Diagonal Prism

Solomark 1.25" 45-degree Diagonal Prism

$29.55
Meade Instruments 07680 Series 5000 2-Inch Enhanced Dielectric Diagonal Mirror

Meade Instruments 07680 Series 5000 2-Inch Enhanced Dielectric Diagonal Mirror

$211.49
Orion 8727 2-Inch Dielectric Mirror Star Diagonal

Orion 8727 2-Inch Dielectric Mirror Star Diagonal

$177.81
Tele Vue 1.25" 90-deg Enhanced Aluminum Star Diagonal # DSC-0125

Tele Vue 1.25" 90-deg Enhanced Aluminum Star Diagonal # DSC-0125

$134.00
Astrotech Triangle mirror

Astrotech Triangle mirror

$0.99
Astromania 2" 45-degree High-quality Erecting Prism Diagonal for Telescope

Astromania 2" 45-degree High-quality Erecting Prism Diagonal for Telescope

$192.35
1" Minor Axis Telescope Secondary Mirror Replacement Part for 114mm Scopes -NEW!

1" Minor Axis Telescope Secondary Mirror Replacement Part for 114mm Scopes -NEW!

$3.99
3" 76mm f 9.2 Telescope Spherical Mirror Kit with 3 4" Secondary  F=700mm NEW!

3" 76mm f 9.2 Telescope Spherical Mirror Kit with 3 4" Secondary F=700mm NEW!

$10.95
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
Never Used 17.5" Coulter Mirror and 4.25" Secondary Mirror Set FOR SALE

Never Used 17.5" Coulter Mirror and 4.25" Secondary Mirror Set FOR SALE

$1,500.00
Never Used 17.5" Coulter Mirror and 4.25" Secondary Mirror Set FOR SALE

Never Used 17.5" Coulter Mirror and 4.25" Secondary Mirror Set FOR SALE

$1,500.00
8" 203mm f 3.9 Telescope Plate Glass Spherical Mirror F=800mm NEW!

8" 203mm f 3.9 Telescope Plate Glass Spherical Mirror F=800mm NEW!

$94.95
2-3 4" Minor Axis Telescope Secondary Mirror Replacement Part for 8" Primary NEW

2-3 4" Minor Axis Telescope Secondary Mirror Replacement Part for 8" Primary NEW

$36.95
8" 203mm f 3.9 Telescope Spherical Mirror with 2-3 4" Secondary F=800mm NEW!

8" 203mm f 3.9 Telescope Spherical Mirror with 2-3 4" Secondary F=800mm NEW!

$119.95
24x17x5in OPTICAL FLAT Lightweight Telescope Autocollimation Mirror Test Flat UV

24x17x5in OPTICAL FLAT Lightweight Telescope Autocollimation Mirror Test Flat UV

$5,000.00
1.25" inch partial telescope eyepiece mirror diagonal

1.25" inch partial telescope eyepiece mirror diagonal

$3.95
Celestron 94112A Erect Image Prism for Refractor NEW!!

Celestron 94112A Erect Image Prism for Refractor NEW!!

$37.95
Brand New Orion 8880 1.25-Inch Dielectric Mirror Star Diagonal

Brand New Orion 8880 1.25-Inch Dielectric Mirror Star Diagonal

$131.00
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 07680 Series 5000 2-Inch Enhanced Dielectric Diagonal Mirror

Meade Instruments 07680 Series 5000 2-Inch Enhanced Dielectric Diagonal Mirror

$211.49
Brand New Orion 8879 1.25-Inch Enhanced Mirror Star Telescope Diagonal

Brand New Orion 8879 1.25-Inch Enhanced Mirror Star Telescope Diagonal

$103.52
Brand New Celestron 2-Inch XLT Diagonal Mirror (for SCT Telescope)

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

$168.78
Solomark 1.25" 45-degree Diagonal Prism

Solomark 1.25" 45-degree Diagonal Prism

$29.69
Nice 11? mirror optics looks military

Nice 11? mirror optics looks military

$425.00
Nice 8? Concave mirror optics looks military

Nice 8? Concave mirror optics looks military

$225.00
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 1.25" 90-deg 99% Dielectric Mirror Diagonal with Compression Ring - NEW

GSO 1.25" 90-deg 99% Dielectric Mirror Diagonal with Compression Ring - NEW

$69.00
Meade Instruments 07680 Series 5000 2-Inch Enhanced Dielectric Diagonal Mirror

Meade Instruments 07680 Series 5000 2-Inch Enhanced Dielectric Diagonal Mirror

$185.54
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
Optical Glass Triangular Prism,  3-Inches - PP-06291

Optical Glass Triangular Prism, 3-Inches - PP-06291

$13.06
Optical Glass Triangular Prism,  4-Inches - PP-06284

Optical Glass Triangular Prism, 4-Inches - PP-06284

$13.69
Optical Glass Triangular Prism,  2-Inches - PP-06307

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

$9.94
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
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!

$4.95
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 ...

$12.61
ONE ...Telescope 31mm X 22mm Secondary Mirror with 4 Vane Spider Cell(Metal)

ONE ...Telescope 31mm X 22mm Secondary Mirror with 4 Vane Spider Cell(Metal)

$12.99
Celestron 2-Inch XLT Diagonal Mirror for SCT Telescope

Celestron 2-Inch XLT Diagonal Mirror for SCT Telescope

$146.06
Meade MWA Eyepiece 15mm (2") Waterproof

Meade MWA Eyepiece 15mm (2") Waterproof

$212.95