Mirrors, Prisms & Holders

Telescopes Auction
Celestron 1.25" 45-deg Erect Image Diagonal  # 94112-A

Celestron 1.25" 45-deg Erect Image Diagonal # 94112-A

$33.95
Meade Series 5000 2" Enhanced Dielectric Diagonal with SCT Adapter # 07680

Meade Series 5000 2" Enhanced Dielectric Diagonal with SCT Adapter # 07680

$149.00
VINTAGE 1970's PRISM TELESCOPE 90 DEGREES

VINTAGE 1970's PRISM TELESCOPE 90 DEGREES

$16.99
$32.99
New in Box Meade #933 45 degree erecting Prism #07220 for ETX-60AT

New in Box Meade #933 45 degree erecting Prism #07220 for ETX-60AT

$16.99
NEW Edmund Scientific First Surface Mirror Metallized Side 40 x 15 x 3.2 mm  E26

NEW Edmund Scientific First Surface Mirror Metallized Side 40 x 15 x 3.2 mm E26

$5.94
New in Box Meade #933 45 degree erecting Prism #07220 for ETX-60AT

New in Box Meade #933 45 degree erecting Prism #07220 for ETX-60AT

$25.99
GSO Parabolic Primary Mirror - 12" f 5

GSO Parabolic Primary Mirror - 12" f 5

$492.00
GSO 2" 90-deg 99% Dielectric Mirror Diagonal for Refractor Telescope

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

$102.00
GSO Elliptical Secondary Mirror - 31mm

GSO Elliptical Secondary Mirror - 31mm

$36.00
GSO Elliptical Secondary Mirror - 46.5mm

GSO Elliptical Secondary Mirror - 46.5mm

$43.00
GSO Elliptical Secondary Mirror - 70mm

GSO Elliptical Secondary Mirror - 70mm

$70.00
Meade #928 Image 45 Degree Erect-Image Diagonal Prism (1.25")  - 07217 - New

Meade #928 Image 45 Degree Erect-Image Diagonal Prism (1.25") - 07217 - New

$39.99
William Optics 90 Degree Optics (1002306-135)

William Optics 90 Degree Optics (1002306-135)

$99.99
Meade 1.25" 45-deg Erect-Image Prism Diagonal for ETX60 70 80 90AT

Meade 1.25" 45-deg Erect-Image Prism Diagonal for ETX60 70 80 90AT

$29.95
$39.95
MEADE #905 Variable Polarizer (1.25") for all Meade Telescopes #ME07286

MEADE #905 Variable Polarizer (1.25") for all Meade Telescopes #ME07286

$49.99
Telescope Secondary Mirror 3.1 inch

Telescope Secondary Mirror 3.1 inch

$139.00
Vintage 10" F6.7 Parabolic Telescope Mirror Pyrex

Vintage 10" F6.7 Parabolic Telescope Mirror Pyrex

$249.00
GSO 2" 90 deg Mirror Diagonal for SCT Telescope

GSO 2" 90 deg Mirror Diagonal for SCT Telescope

$70.00
Meade or Celestron (Japan) 0.965 Porro Prism Telescope Diagonal

Meade or Celestron (Japan) 0.965 Porro Prism Telescope Diagonal

$19.95
114mm Primary Mirror and Cell

114mm Primary Mirror and Cell

$15.00
Meade Telestar NGC 60mm Diagonal,  1.25"

Meade Telestar NGC 60mm Diagonal, 1.25"

$9.47
$12.99
Orion 2 inch diagonal

Orion 2 inch diagonal

$36.00
Celestron 2" diagonal  93519 SCT or refractors

Celestron 2" diagonal 93519 SCT or refractors

$52.88
Meade  Meade 62 T-Adapter #07352 - New

Meade Meade 62 T-Adapter #07352 - New

$29.99
GSO Elliptical Secondary Mirror - 80mm

GSO Elliptical Secondary Mirror - 80mm

$100.00
GSO Elliptical Secondary Mirror - 88mm

GSO Elliptical Secondary Mirror - 88mm

$130.00
NEW in Box Meade 918A 90 degree Diagonal 1.25" 07202

NEW in Box Meade 918A 90 degree Diagonal 1.25" 07202

$20.00
Celestron 94112A Erect Image Prism for Refractor

Celestron 94112A Erect Image Prism for Refractor

$15.00
Baader 2" Clicklock Mirror Star Diagonal for Telescope # MAX-2C 2956100

Baader 2" Clicklock Mirror Star Diagonal for Telescope # MAX-2C 2956100

$297.00
2.5" Edmund telescope newtonian mirror  - very slight coating blem

2.5" Edmund telescope newtonian mirror - very slight coating blem

$3.95
Meade roof prism set for eyepiece,  telescope experiment

Meade roof prism set for eyepiece, telescope experiment

$4.95
American Educational Concave Parabolic Large Demonstration Mirror  40.5cm Diamet

American Educational Concave Parabolic Large Demonstration Mirror 40.5cm Diamet

$72.95
TWO 2 1 4 INCH  F#4 MIRRORS  FULL THICKNESS

TWO 2 1 4 INCH F#4 MIRRORS FULL THICKNESS

$55.00
$75.00
TWO 3 INCH  F#2.7 MIRRORS  FULL THICKNESS

TWO 3 INCH F#2.7 MIRRORS FULL THICKNESS

$65.00
$85.00
TWO 4 1 4 INCH  F#5 MIRRORS FULL THICKNESS - REVISED

TWO 4 1 4 INCH F#5 MIRRORS FULL THICKNESS - REVISED

$75.00
$110.00
Televue 2in everbrite mirror diagonal

Televue 2in everbrite mirror diagonal

$175.00
$227.00
Celestron 94112A Erect Image Prism for Refractor NEW!!

Celestron 94112A Erect Image Prism for Refractor NEW!!

$34.95
Vernonscope 2" Telescope Diagonal Body

Vernonscope 2" Telescope Diagonal Body

$0.99
Telescope PRIMARY MIRROR : 102mm

Telescope PRIMARY MIRROR : 102mm

$29.99
VINTAGE PRIMARY TELESCOPE 10" MIRROR

VINTAGE PRIMARY TELESCOPE 10" MIRROR

$80.00
GSO Parabolic Primary Mirror - 6" f 6

GSO Parabolic Primary Mirror - 6" f 6

$145.00
GSO Parabolic Primary Mirror - 10" f 4

GSO Parabolic Primary Mirror - 10" f 4

$480.00
GSO Parabolic Primary Mirror - 8" f 4

GSO Parabolic Primary Mirror - 8" f 4

$212.00
GSO Parabolic Primary Mirror - 8" f 5

GSO Parabolic Primary Mirror - 8" f 5

$205.00
Orion 180 Degree Erecting Prism 1.25"

Orion 180 Degree Erecting Prism 1.25"

$49.95
Baader 2" 90° Erecting Amici Prism Diagonal w  1.25" Adapter # AMICI-2 2956152

Baader 2" 90° Erecting Amici Prism Diagonal w 1.25" Adapter # AMICI-2 2956152

$292.00
Meade Series 4000 #126 2X Short-Focus Barlow Lens (1.25") #07273 - New

Meade Series 4000 #126 2X Short-Focus Barlow Lens (1.25") #07273 - New

$39.99
Meade Series 4000 #126 2X Short-Focus Barlow Lens (1.25") #07278 - New

Meade Series 4000 #126 2X Short-Focus Barlow Lens (1.25") #07278 - New

$39.99
SCT Dielectric Diagonal 2" by High Point

SCT Dielectric Diagonal 2" by High Point

$114.95
New Zambuto 10" F 6 Primary Telescope Mirror with(Certification) in Original Box

New Zambuto 10" F 6 Primary Telescope Mirror with(Certification) in Original Box

$1,499.00
ProtoStar Telescope Secondary Mirror 2.14 ULS Quartz with 2.14x12.0 Curved Mount

ProtoStar Telescope Secondary Mirror 2.14 ULS Quartz with 2.14x12.0 Curved Mount

$249.00
Hubble Hyperbolic Newtonian Astrograph Optics,  HNA14

Hubble Hyperbolic Newtonian Astrograph Optics, HNA14

$1,650.00
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

$69.00
GSO Parabolic Primary Mirror - 16" f 4.5

GSO Parabolic Primary Mirror - 16" f 4.5

$1,170.00
GSO Parabolic Primary Mirror - 12" f 4

GSO Parabolic Primary Mirror - 12" f 4

$675.00
GSO Parabolic Primary Mirror - 8" f 6

GSO Parabolic Primary Mirror - 8" f 6

$190.00
GSO Elliptical Secondary Mirror - 50mm

GSO Elliptical Secondary Mirror - 50mm

$41.00
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

$67.00
2.5" Edmund telescope newtonian mirror  - very slight coating blem

2.5" Edmund telescope newtonian mirror - very slight coating blem

$4.95
William Optics 1.25" 45° Erect Prism - D-EP125

William Optics 1.25" 45° Erect Prism - D-EP125

$68.00
William Optics 90 Degree 1.25" Erect Prism

William Optics 90 Degree 1.25" Erect Prism

$69.00
GSO 0.965"   1.25" 90-deg Hybrid 99% Dielectric Mirror Diagonal Compression Ring

GSO 0.965" 1.25" 90-deg Hybrid 99% Dielectric Mirror Diagonal Compression Ring

$68.00
7x18 High-Definition Monocular Telescope Pocket Telescope Portable sight + Bag

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

$19.99
TS Optics GSO Secondary Mirror - 50mm Minor Axis - Elliptical

TS Optics GSO Secondary Mirror - 50mm Minor Axis - Elliptical

$56.31
NEW ON OFF SWITCH 2X FLIP BARLOW LENS+ ERECTING DIAGONAL PRISM 1.25" FORMAT-30MM

NEW ON OFF SWITCH 2X FLIP BARLOW LENS+ ERECTING DIAGONAL PRISM 1.25" FORMAT-30MM

$59.99
Telescope PRIMARY MIRROR : 160mm

Telescope PRIMARY MIRROR : 160mm

$69.99
SCT Quartz Dielectric Diagonal 2" by High Point

SCT Quartz Dielectric Diagonal 2" by High Point

$139.95
American Educational Concave Parabolic Large Demonstration Mirror  40.5cm Diamet

American Educational Concave Parabolic Large Demonstration Mirror 40.5cm Diamet

$69.88
3PC Telescopic Magnetic Pick Up Inspection Mirror Piercing Pin for Inspecting

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

$7.48
 Scientific 2-inch 99% Reflective Dielectric Coated Diagonal Mirror Carbon Fiber

Scientific 2-inch 99% Reflective Dielectric Coated Diagonal Mirror Carbon Fiber

$145.34
4.3?HD 120 degree 5V 1A Car Camera DVR Rearview Mirror Car Recorder 306*80*12mm

4.3?HD 120 degree 5V 1A Car Camera DVR Rearview Mirror Car Recorder 306*80*12mm

$142.49
Explore Scientific 2" 99% Reflective Dielectric Coated Diagonal Mirror Carbon

Explore Scientific 2" 99% Reflective Dielectric Coated Diagonal Mirror Carbon

$153.88
NEW Orion 8763 1.25-Inch Prism Star Telescope Diagonal

NEW Orion 8763 1.25-Inch Prism Star Telescope Diagonal

$56.69
GSO 2" 90-deg 99% Dielectric Mirror Diagonal for SCT Telescope

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

$102.00
GSO 2" 90-deg 99% Quartz Dielectric Mirror Diagonal for Refractor Telescope

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

$122.00
GSO 2" 90-deg 99% Quartz Dielectric Mirror Diagonal for SCT Telescope

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

$122.00
William Optics 1.25" 45 degree Erecting Prism Diagonal # D-EP125

William Optics 1.25" 45 degree Erecting Prism Diagonal # D-EP125

$78.00
Lumicon 2" Enhanced Diagonal for Telescope # LD1015

Lumicon 2" Enhanced Diagonal for Telescope # LD1015

$185.00
William Optics 2" 99% Dielectric Dura Bright Carbon Fiber Mirror Diagonal

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

$139.00
Explore 2" 99% Reflective Dielectric-Coated Diagonal Mirror Carbon Fiber New co

Explore 2" 99% Reflective Dielectric-Coated Diagonal Mirror Carbon Fiber New co

$155.99
Explore Scientific 2-inch 99% Reflective Dielectric Coated Diagonal High glossy

Explore Scientific 2-inch 99% Reflective Dielectric Coated Diagonal High glossy

$159.99
Commander Binoculars Optical Prism Part

Commander Binoculars Optical Prism Part

$24.99
Prism Diagonal 45 Degree 1.25" by High Point Scientific

Prism Diagonal 45 Degree 1.25" by High Point Scientific

$29.95
Baader T-2 90° Prism Star Diagonal Body with Carl Zeiss Prism # T2-01B 2456095

Baader T-2 90° Prism Star Diagonal Body with Carl Zeiss Prism # T2-01B 2456095

$262.00
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" 60-deg Everbrite Erect Image Diagonal # DPC-6012

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

$240.00
Baader T-2 Maxbright Dielectric Mirror Diagonal Body # MAX-1 2456100

Baader T-2 Maxbright Dielectric Mirror Diagonal Body # MAX-1 2456100

$277.00
Meade 07217 #928 45degree Erect-Image Diagonal Prism (1.25")

Meade 07217 #928 45degree Erect-Image Diagonal Prism (1.25")

$39.99
GSO 1.25" 90 degree Erect Image Amici Prism Diagonal # PD90

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

$29.00
GSO 1.25" 90-deg Mirror Star Diagonal for Refractor Telescope # GSST

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

$28.00
GSO 1.25" 45 degree Erect Image Amici Prism Diagonal # PD45

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

$29.00
GSO 0.965"   1.25" 90-deg Hybrid Mirror Star Diagonal

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

$30.00
GSO 0.965"   1.25" 45-deg Hybrid Erect-Image Prism Diagonal

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

$31.00
GSO 0.965"   1.25" 90-deg Hybrid Erect-Image Prism Diagonal

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

$31.00
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
GSO Elliptical Secondary Mirror - 28mm

GSO Elliptical Secondary Mirror - 28mm

$27.00
American Educational Concave Parabolic Large Demonstration Mirror,  40.5cm

American Educational Concave Parabolic Large Demonstration Mirror, 40.5cm

$74.03
Half BINOCULARS eyepiece lens prism mil spec for parts Part2go

Half BINOCULARS eyepiece lens prism mil spec for parts Part2go

$50.00
Star Maps Clock - Northern Hemisphere by Watch Design

Star Maps Clock - Northern Hemisphere by Watch Design

$164.64
TELEVUE STAR DIAGONAL (1.25"; P N SDQ-0010)

TELEVUE STAR DIAGONAL (1.25"; P N SDQ-0010)

$129.95