Telescope Diagonals & Prisms

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Tele Vue 90-Degree Everbrite Mirror Diagonal (1.25")

Tele Vue 90-Degree Everbrite Mirror Diagonal (1.25")

B&H # TE190E MFR # DPC-1250

Key Features

  • Upright, Laterally-Reversed Images
$19000
More on the Way
Expected availability: 3-7 business days
Celestron 90° Dielectric Star Diagonal with Twist-Lock (1.25")

Celestron 90° Dielectric Star Diagonal with Twist-Lock (1.25")

B&H # CEDSDTL125 MFR # 93571

Key Features

  • 1.25" Nose Piece and Holder
  • BK7 Glass, Diffraction-Limited Optics
  • 58-Layer Dielectric Coatings
  • Over 99% Reflective Mirror Surfaces
$12900
In Stock

Celestron 90° Dielectric Star Diagonal with Twist-Lock (2")

B&H # CEDSDTL2 MFR # 93573

Key Features

  • 2" Eyepiece Holder with 1.25" Reducer
  • Adapter for Connection to SCT Backs
  • BK7 Glass, Diffraction-Limited Optics
  • 58-Layer Dielectric Coatings
$17999
More on the Way
Expected availability: 7-14 business days

Meade Series 5000 2" Enhanced Diagonal

B&H # ME2DSCA MFR # 07680

Key Features

  • 90° Diagonal
  • Schmidt-Cassegrain Adapter
  • Supports Meade LT, LS, LX90, and LX200
  • 1.25" Eyepiece Adapter
$13459
In Stock

Celestron 45-Degree Erect Diagonal (1.25")

B&H # CEDEI451.25 MFR # 94112-A

Key Features

  • Upright & Laterally-Correct Observing
$3995
In Stock

Celestron 90° Star Diagonal (1.25")

B&H # CEDS1.25 MFR # 94115-A

Key Features

  • 90° Angle
  • Upright & Laterally-Reversed Observing
$4495
In Stock

Tele Vue Everbrite 90° Star Diagonal Reducer Kit (2")

B&H # TEDDP8004 MFR # DDP-8004

Key Features

  • 2" Barrel and Eyepiece Holder
  • 99% Reflective Everbrite Mirror Coatings
  • Broadband Reflectivity for Natural Color
  • Pyrex Optical Glass Mirror
$32000
In Stock

Celestron 90-Degree Mirror Diagonal (2") for SCT Scopes

B&H # CEDM2S MFR # 93527

Key Features

  • Upright, Laterally-Reversed Images
  • Fits Catadioptric 2"-18 Rear Threads
  • Starbright XLT Coatings
$14900
In Stock

Meade #932 45-Degree Erect Image Prism (1.25")

B&H # MEEPETX MFR # 07210

Key Features

  • For ETX-90, ETX-105, & ETX-125 Scopes
  • Upright, Laterally-Correct Observing
$5299
In Stock

iOptron 90° Dielectric Star Diagonal (1.25")

B&H # IO6231 MFR # 6231

Key Features

  • Ideal for Refractor or Catadioptric OTAs
  • 1.25" Diameter Barrel
  • Dielectric-Coated BK-7 Glass Mirror
  • 99% Reflective Surface Mirror
$7900
In Stock

Meade #933 45-Degree Erect Image Prism (1.25")

B&H # MEEPETX60 MFR # 07220

Key Features

  • For ETX-60, ETX-70, & ETX-80 Telescopes
  • Built-In 2.4x Magnification
  • Upright, Laterally-Correct Observing
$4900
Back-Ordered

Alpine Astronomical Baader 1.25" 45° Amici Erecting Diagonal

B&H # ALAMICI45 MFR # AMICI-45

Key Features

  • 1.25" Holder and Nosepiece
  • Anti-Reflection Multi-Coatings
  • Large 24mm Clear Aperture
  • Standard 1.25" Eyepiece Filter Threads
$9200
Special Order
Expected availability: 7-14 business days

Vixen Optics Flip Mirror System

B&H # VIFM MFR # 2680

Key Features

  • Inserts in 2" Focusers
  • Accepts 1.25" Eyepieces
  • Accepts T-Mounts
$12900
More on the Way
Expected availability: 7-14 business days

Alpine Astronomical Baader Zenith Prism Star Diagonal (1.25")

B&H # ALPRISM1 MFR # PRISM-1

Key Features

  • Baader Deluxe 1.25"/T-2 Eyepiece Holder
  • Tight Fit for Accurate Optical Alignment
  • Bronze Compression Ring, 3 Set Screws
  • Locking Micro-Focusing Mechanism
$16900
Back-Ordered
Expected availability: Nov 02, 2020

Explore Scientific 2" ES Star Diagonal

B&H # EXDD0200CF MFR # DD02-00CF

Key Features

  • 2" Diameter Barrel
  • 1.25" Eyepiece Adapter
  • Dielectric-Coated Mirror
  • 99% Reflective Surface Mirror
$16999
More on the Way
Expected availability: 7-10 business days

Alpine Astronomical Baader FlipMirror II Star Diagonal

B&H # ALBFMII MFR # BFM-II

Key Features

  • Essential for Accurate Astrophotography
  • Three Ports for Cameras & Accessories
  • Multi-Layer Aluminum-Coated Flip Mirror
  • Precise Adjustments for All Light Paths
$22700
In Stock

iOptron 45° Erect-Image Diagonal (1.25")

B&H # IOTDE100 MFR # TDE100

Key Features

  • 1.25" Barrel Diameter
  • Corrects Image for Terrestrial Viewing
$2500
Special Order
Expected availability: 7-14 business days

Meade #918A 90-Degree Prism Diagonal (1.25")

B&H # MEDPLX MFR # 07202

Key Features

  • Upright, Laterally-Reversed Images
$3099
Back-Ordered

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

B&H # MEEPLX MFR # 07217

Key Features

  • For Refractor & SCT Scopes
  • Upright, Laterally-Correct Observing
$3999
Back-Ordered

Lumicon 90-Degree Mirror Diagonal (2")

B&H # LU2MD MFR # LD1005

Key Features

  • Upright, Laterally-Reversed Images
$4995
Special Order
Expected availability: 7-14 business days

Lumicon 90-Degree Enhanced Mirror Diagonal (1.25")

B&H # LU125ED MFR # LD1010

Key Features

  • Upright, Laterally-Reversed Images
$10000
Special Order
Expected availability: 7-14 business days

iOptron 90° Dielectric Star Diagonal (2")

B&H # IO6232 MFR # 6232

Key Features

  • Ideal for Refractor or Catadioptric OTAs
  • Large 2" Diameter Barrel
  • 1.25" Reducer Adapter Included
  • Dielectric-Coated BK-7 Glass Mirror
$11000
Special Order
Expected availability: 7-14 business days

Alpine Astronomical Baader 45° Erecting Amici Prism for Maxbright Binoviewer (1.25")

B&H # ALMAXAMICI MFR # MAXAMICI

Key Features

  • Corrects View for Terrestrial Use
  • Anti-Reflection Multi-Coated Optics
  • Total Reflection Prism Coatings
  • Integrated 2x Glasspath Corrector
$11500
Special Order
Expected availability: 7-14 business days

Alpine Astronomical Baader T-2 90° Prism Star Diagonal Housing

B&H # ALT201C MFR # T2-01C

Key Features

  • Part of the Astro T-2 Modular System
  • 32mm Clear Mirror Aperture
  • T2 Male and T2 Female Threads
  • Highly Reflective Mirror Coatings
$12900
Special Order
Expected availability: 7-14 business days

Snypex 45-degree Erect Image Roof Prism for the Knight PT Digiscope

B&H # SN45EIRP MFR # SNY PT72-45AA

Key Features

  • For the Knight PT 72mm-ED-APO Digiscope
  • Accepts 1.25" Eyepieces and Accessories
$12999
Special Order
Expected availability: 7-10 business days

Lumicon 90-Degree LumiBrite Mirror Diagonal (1.25")

B&H # LU125LD MFR # LD1020

Key Features

  • Upright, Laterally-Reversed Images
$13000
Special Order
Expected availability: 7-14 business days

Tele Vue 90° Enhanced Aluminum Star Diagonal (1.25")

B&H # TE190D MFR # DSC-0125

Key Features

  • 1.25" Diameter Barrel
  • 96% Reflective Mirror Surface
  • Top-Layer Protective Mirror Coating
  • Non-Marking Brass Clamp Ring
$14000
Special Order
Expected availability: 3-7 business days

Vixen Optics Straight Viewing Erect Image Adapter (1.25")

B&H # VIEIA MFR # 3847

Key Features

  • Upright, Laterally Correct Images
$14900
Special Order
Expected availability: 7-14 business days

Lumicon 90-Degree Enhanced Mirror Diagonal (2")

B&H # LU2ED MFR # LD1015

Key Features

  • Upright, Laterally-Reversed Images
$19000
Special Order
Expected availability: 7-14 business days

Alpine Astronomical Baader 2" 45° Amici Erecting Diagonal

B&H # ALAMICI452 MFR # AMICI-45-2

Key Features

  • 2" Holder and SCT Mount Threads
  • 1.25" Eyepiece Reducer Adapter
  • Anti-Reflection Multi-Coatings
  • Not Recommended for High Magnifications
$23900
Special Order
Expected availability: 7-14 business days

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