Mirrors, Prisms & Holders

Telescopes Auction
Parks 1.55" Elliptical Secondary Telescope Mirror Enhanced Aluminum Coating

Parks 1.55" Elliptical Secondary Telescope Mirror Enhanced Aluminum Coating

$25.00
$40.00
Parks 2.60" Elliptical Secondary Telescope Mirror Enhanced Aluminum Coating

Parks 2.60" Elliptical Secondary Telescope Mirror Enhanced Aluminum Coating

$40.00
$60.00
 Dust Caps set  5 brand new plastic dust caps and 5 plugs  Telescope Accessories

Dust Caps set 5 brand new plastic dust caps and 5 plugs Telescope Accessories

$8.99
2 5 8" Minor Axis SECONDARY MIRROR

2 5 8" Minor Axis SECONDARY MIRROR

$150.00
Telescope PRIMARY MIRROR : 80mm

Telescope PRIMARY MIRROR : 80mm

$19.99
4.5" 114mm f5 Short Tube Telescope Spherical Mirror with 1-3 8 Secondary F=500mm

4.5" 114mm f5 Short Tube Telescope Spherical Mirror with 1-3 8 Secondary F=500mm

$24.95
31.7mm Zenith Mirror 1.25" 45º Erecting Prisms for Telescope Full Metal

31.7mm Zenith Mirror 1.25" 45º Erecting Prisms for Telescope Full Metal

$29.97
Telescope Spherical PRIMARY MIRROR :104mm Diameter #Z953 ZY

Telescope Spherical PRIMARY MIRROR :104mm Diameter #Z953 ZY

$182.99
Telescope Spherical PRIMARY MIRROR :104mm Diameter #Z954 ZY

Telescope Spherical PRIMARY MIRROR :104mm Diameter #Z954 ZY

$181.09
14.75IN DIA 1.2IN 375mmx31mm FUSED QUARTZ TELESCOPE MIRROR BLANK GLASS NEW

14.75IN DIA 1.2IN 375mmx31mm FUSED QUARTZ TELESCOPE MIRROR BLANK GLASS NEW

$750.00
Meade #126 1.25-Inch 2x Short-Focus Barlow Lens

Meade #126 1.25-Inch 2x Short-Focus Barlow Lens

$39.99
William Optics 2" 45 degree Erecting Prism Diagonal for Telescope # D-EP2

William Optics 2" 45 degree Erecting Prism Diagonal for Telescope # D-EP2

$188.00
William Optics 2" 99% Dura Bright RotoLock Mirror Diagonal for SCTs

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

$229.00
William Optics 1.25" 99% Dielectric DuraBright Carbon Fiber Star Mirror Diagonal

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

$95.00
William Optics 1.25" 90-deg Erecting Prism Diagonal w  Helical Focusing D-EP90-1

William Optics 1.25" 90-deg Erecting Prism Diagonal w Helical Focusing D-EP90-1

$71.00
Baader T-2 BBHS Dielectric Mirror Diagonal Body # MAX-1S 2456103

Baader T-2 BBHS Dielectric Mirror Diagonal Body # MAX-1S 2456103

$292.00
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

$71.00
20IN DIA 1.75IN 508x44.5mm FUSED SILICA QUARTZ TELESCOPE BLANK MIRROR GLASS NEW

20IN DIA 1.75IN 508x44.5mm FUSED SILICA QUARTZ TELESCOPE BLANK MIRROR GLASS NEW

$1,850.00
12" MIRROR FLAT Glass blank reflector telescope lens Vtg BERLIN GERMANY Antique

12" MIRROR FLAT Glass blank reflector telescope lens Vtg BERLIN GERMANY Antique

$225.00
Optical Mirror for telescope 6" vintage

Optical Mirror for telescope 6" vintage

$60.00
Demonstration Mirror Parabolic New 68 CM Focuses Parallel Rays Virtual Images

Demonstration Mirror Parabolic New 68 CM Focuses Parallel Rays Virtual Images

$54.77
5 PCS Zenith Mirror 0.965" 45° Erecting Prism Astronomical Telescope Glass Black

5 PCS Zenith Mirror 0.965" 45° Erecting Prism Astronomical Telescope Glass Black

$23.59
GSO mirror diagonal 99% dielectric

GSO mirror diagonal 99% dielectric

$99.00
Celestron 2" diagonal  93519 SCT or refractors

Celestron 2" diagonal 93519 SCT or refractors

$51.88
10 - Telescope Prisms,  Unknown Strengths,  Unknown Maker

10 - Telescope Prisms, Unknown Strengths, Unknown Maker

$0.99
Mike Lockwood 2.2 Inch Minor Axis Secondary Mirror

Mike Lockwood 2.2 Inch Minor Axis Secondary Mirror

$200.00
Coulter Optical (Murnaghan Instruments) 6" F4 Parabolic Primary Telescope Mirror

Coulter Optical (Murnaghan Instruments) 6" F4 Parabolic Primary Telescope Mirror

$119.00
Vintage Bushnell Sky Chief ll 78-5100 Japan telescope

Vintage Bushnell Sky Chief ll 78-5100 Japan telescope

$29.99
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
GSO Parabolic Primary Mirror - 12" f 4

GSO Parabolic Primary Mirror - 12" f 4

$690.00
Telescope Secondary Mirror 3.1 inch

Telescope Secondary Mirror 3.1 inch

$160.00
Telescope Secondary Mirror 4.0 inch

Telescope Secondary Mirror 4.0 inch

$250.00
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!

$129.95
2.5" Edmund telescope newtonian mirror  - very slight coating blem

2.5" Edmund telescope newtonian mirror - very slight coating blem

$3.95
1.25" Zenith Mirror 45-Deg Erecting Prism Astronomical Telescope Part Full Metal

1.25" Zenith Mirror 45-Deg Erecting Prism Astronomical Telescope Part Full Metal

$28.99
Zenith Mirror 45-Degree Erecting Prism Connect 1.25" Adapter Telescope Eyepiece

Zenith Mirror 45-Degree Erecting Prism Connect 1.25" Adapter Telescope Eyepiece

$28.96
16" f 4.5 Sandwich Parabolic Telescope Mirror

16" f 4.5 Sandwich Parabolic Telescope Mirror

$950.00
EYEPIECE TELESCOPE PRISM ROOF BEAM SPLITTER TANK LASER AIM OPTIC

EYEPIECE TELESCOPE PRISM ROOF BEAM SPLITTER TANK LASER AIM OPTIC

$92.07
Telescope PRIMARY MIRROR + CELL : 160mm

Telescope PRIMARY MIRROR + CELL : 160mm

$99.99
2 Mirror 6.0'' Diameter mirror blank

2 Mirror 6.0'' Diameter mirror blank

$80.00
7x18 High-Definition Monocular Telescope Pocket Telescope Portable sight + Bag

7x18 High-Definition Monocular Telescope Pocket Telescope Portable sight + Bag

$19.99
Celestron telescope maksutov eyepiece C90 hybrid prism caps and box clean JAPAN

Celestron telescope maksutov eyepiece C90 hybrid prism caps and box clean JAPAN

$15.65
Celestron telescope eyepiece diagonal C8 C11 2" 90 deg diagonal caps TAIWAN

Celestron telescope eyepiece diagonal C8 C11 2" 90 deg diagonal caps TAIWAN

$10.49
GSO Elliptical Secondary Mirror - 104mm

GSO Elliptical Secondary Mirror - 104mm

$168.00
American Educational Concave Parabolic Large Demonstration Mirror,  7-1301-4 NEW

American Educational Concave Parabolic Large Demonstration Mirror, 7-1301-4 NEW

$50.71
Steinheil,  large zenith prism,  refractor telescope,  + -1880

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

$370.00
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
optical flat, optics, telescope, astronomy, laser

optical flat, optics, telescope, astronomy, laser

$25.00
$50.00
468mm (18.4 Inch) f 7 Newtonian TELESCOPE MIRROR Historic Whittier College 1920s

468mm (18.4 Inch) f 7 Newtonian TELESCOPE MIRROR Historic Whittier College 1920s

$1,150.00
$1,550.00
Meade roof prism set for eyepiece,  telescope experiment

Meade roof prism set for eyepiece, telescope experiment

$3.95
1.25" STAR DIAGONAL - PRISM TYPE - #7

1.25" STAR DIAGONAL - PRISM TYPE - #7

$28.99
New Mil Spec First (Front) Surface Mirror 110mm x 65mm Part number 10516757

New Mil Spec First (Front) Surface Mirror 110mm x 65mm Part number 10516757

$100.00
Meade 07730 Series 5000 HD-60 4.5-Millimeter Eyepiece (Black)

Meade 07730 Series 5000 HD-60 4.5-Millimeter Eyepiece (Black)

$89.00
Meade 07734 Series 5000 1.25-Inch HD-60 18-Millimeter Eyepiece (Black)

Meade 07734 Series 5000 1.25-Inch HD-60 18-Millimeter Eyepiece (Black)

$89.00
Explore Scientific 99% Dielectric 2" Diagonal for Telescope # DD02-00CF

Explore Scientific 99% Dielectric 2" Diagonal for Telescope # DD02-00CF

$119.99
Meade 07741 Series 5000 1.25-Inch Xtreme Wide Angle 8.8-Millimeter Eyepiece (Bla

Meade 07741 Series 5000 1.25-Inch Xtreme Wide Angle 8.8-Millimeter Eyepiece (Bla

$129.00
Meade 07356 SLR 1.25-Inch Basic Camera Adapter for Refractor and Reflector Teles

Meade 07356 SLR 1.25-Inch Basic Camera Adapter for Refractor and Reflector Teles

$39.99
GSO 2" 90-deg 99% Quartz Dielectric Mirror Diagonal for SCT Telescope

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

$132.00
Meade 8" Equatorial Wedge 07002

Meade 8" Equatorial Wedge 07002

$299.00
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
6" 150mm f 5  Telescope Spherical Mirror,  1-9 16" Secondary F=750mm NEW!

6" 150mm f 5 Telescope Spherical Mirror, 1-9 16" Secondary F=750mm NEW!

$47.95
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
4.5" 114mm f5 Short Tube Telescope Spherical Mirror with 1-3 8 Secondary F=500mm

4.5" 114mm f5 Short Tube Telescope Spherical Mirror with 1-3 8 Secondary F=500mm

$22.95
4.5" 114mm f8 Long Tube Telescope Spherical Mirror with 1" Secondary F=900mm NEW

4.5" 114mm f8 Long Tube Telescope Spherical Mirror with 1" Secondary F=900mm NEW

$21.95
Orion 8763 1.25-inch Prism Star Telescope Diagonal

Orion 8763 1.25-inch Prism Star Telescope Diagonal

$53.23
Telescope Mirror 12.5"

Telescope Mirror 12.5"

$600.00
astronomy ocular lenses orthoscoppic university optics

astronomy ocular lenses orthoscoppic university optics

$12.99
6.0" x 1.5" Telescope Mirror Blank ULE

6.0" x 1.5" Telescope Mirror Blank ULE

$300.00
7.0'' x 1.5'' Telescope Mirror Blank Dynsil

7.0'' x 1.5'' Telescope Mirror Blank Dynsil

$400.00
Large 16" Pyrex Optical Flat Mirror Brand new from factory

Large 16" Pyrex Optical Flat Mirror Brand new from factory

$4,249.00
Tele Vue 2" 90-deg Enhanced Aluminum Star Diagonal # DSC-8001

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

$220.00
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
Orion 8880 1.25-Inch Dielectric Mirror Star Diagonal

Orion 8880 1.25-Inch Dielectric Mirror Star Diagonal

$125.46
Orion 8850 2-Inch Refractor Telescope Mirror Diagonal

Orion 8850 2-Inch Refractor Telescope Mirror Diagonal

$115.69
Vintage Edmund Scientific 6" reflecting telescope kit  eyepiece

Vintage Edmund Scientific 6" reflecting telescope kit eyepiece

$75.99
GSO 1.25" 90-deg Mirror Star Diagonal for Refractor Telescope # GSST

GSO 1.25" 90-deg Mirror Star Diagonal for Refractor Telescope # GSST

$31.00
GSO 1.25" 45 degree Erect Image Amici Prism Diagonal # PD45

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

$32.00
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
GSO 0.965"   1.25" 90-deg Hybrid Mirror Star Diagonal

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

$33.00
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
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
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
Celestron 94112A Erect Image Prism for Refractor NEW!!

Celestron 94112A Erect Image Prism for Refractor NEW!!

$32.95
Meade Telescope 45° Erecting Prism.

Meade Telescope 45° Erecting Prism.

$29.00
Meade Ts34c-m Long Range Temperature Te923w-m,  White

Meade Ts34c-m Long Range Temperature Te923w-m, White

$29.37
2X 1.25'' Zenith Mirror 45Degree Erecting Prism Telescope Diagonal for Eyepiece

2X 1.25'' Zenith Mirror 45Degree Erecting Prism Telescope Diagonal for Eyepiece

$22.49
5X 1.25" 45? Erecting Prism Astronomical Telescope 31.7mm Zenith Diagonal Mirror

5X 1.25" 45? Erecting Prism Astronomical Telescope 31.7mm Zenith Diagonal Mirror

$52.99
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
PERISCOPE EYEPIECE TELESCOPE PRISM BEAM SPLITTER TANK LASER AIM OPTIC 240mm

PERISCOPE EYEPIECE TELESCOPE PRISM BEAM SPLITTER TANK LASER AIM OPTIC 240mm

$45.05
GSO Parabolic Primary Mirror - 6" f 4

GSO Parabolic Primary Mirror - 6" f 4

$219.00
GSO 6" f 4 Parabolic Primary and 62.5mm Secondary Mirror Set for Telescope

GSO 6" f 4 Parabolic Primary and 62.5mm Secondary Mirror Set for Telescope

$265.00
Brand New Astromania 1.25" 45-degree Diagonal Prism

Brand New Astromania 1.25" 45-degree Diagonal Prism

$41.24
24x17x5in OPTICAL FLAT Lightweight Telescope Autocollimation Mirror Test Flat UV

24x17x5in OPTICAL FLAT Lightweight Telescope Autocollimation Mirror Test Flat UV

$5,000.00
LOT OF 6 NEW united lens unitedlens telescope mirror blanks UL-23 8.00" 1.375"

LOT OF 6 NEW united lens unitedlens telescope mirror blanks UL-23 8.00" 1.375"

$550.00
PERISCOPE EYEPIECE TELESCOPE PRISM BEAM SPLITTER 45 DEGREE MIRROR

PERISCOPE EYEPIECE TELESCOPE PRISM BEAM SPLITTER 45 DEGREE MIRROR

$26.33
Baader 2" Clicklock BBHS Dielectric Mirror Star Diagonal # MAX-2S 2456115

Baader 2" Clicklock BBHS Dielectric Mirror Star Diagonal # MAX-2S 2456115

$489.00
Celestron 94112A Erect Image Prism for Refractor NEW!!

Celestron 94112A Erect Image Prism for Refractor NEW!!

$32.95