Focal Reducers & Field Flatteners

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Celestron 0.7x Reducer Lens for EdgeHD 800 Telescope

Celestron 0.7x Reducer Lens for EdgeHD 800 Telescope

B&H # CERL8EHD MFR # 94242

Key Features

  • For 8" EdgeHD Optical Tube
  • 0.7x Focal Reduction, 43% Wider FOV
  • Fully Multicoated Lanthanum Glass
  • 105mm Back Focus Distance
$35995
6 Mos. Promo Financing*
More on the Way
Expected availability: 2-4 weeks
Sky-Watcher S20201 Reducer / Corrector

Sky-Watcher S20201 Reducer / Corrector

B&H # SKRCP100 MFR # S20201

Key Features

  • Designed for the PRO 100 ED APO
  • Focal Length Reduction - 0.85x
  • Provides Enhanced Field-edge Correction
$29500
6 Mos. Promo Financing*
In Stock

Tele Vue TRF-2008 0.8x Reducer

B&H # TETRF2008 MFR # TRF-2008

Key Features

  • Reduces Focal Length by 0.8x
  • Widens Field & Shortens Exposures
  • For Imaging Only
  • Requires Camera-Specific T-Mount
$29500
6 Mos. Promo Financing*
In Stock

Celestron f/6.3 Reducer/Corrector

B&H # CERC MFR # 94175

Key Features

  • For 5-14" Catadioptric Scopes
  • Widens Field of View
  • Shortens Exposure Times
  • Requires 93633-A Photo Adapter
$15495
6 Mos. Promo Financing*
In Stock

Sky-Watcher Reducer/Corrector Adapter for Evostar 72ED

B&H # SKE72EDRCA MFR # S20210

Key Features

  • For 0.85x Reducer/Correctors
  • Installs onto Evostar 72ED OTA
  • Adapter Only
$2500
In Stock

Sky-Watcher 0.85x Focal Reducer/Corrector for ED80 Telescope

B&H # SKFRFP80 MFR # S20200

Key Features

  • Reduces the Focal Length by 0.85x
  • Reduces Distortion at the FoV Edges
  • Use with Select T-Ring Adapters
$29500
6 Mos. Promo Financing*
In Stock

Celestron 0.7x Edge HD Reducer Lens

B&H # CER7XE1100 MFR # 94241

Key Features

  • 0.7x Compression
  • Fully Multicoated Optics
  • 5-Element Design
  • Increase Speed by 1.0 F-Stop
$69900
12 Mos. Promo Financing*
More on the Way
Expected availability: 2-4 weeks

Sky-Watcher Field Flattener for EvoGuide 50ED Guidescope

B&H # SKS20214 MFR # S20214

Key Features

  • Use Guidescope for Astrophotography
  • T-2 Threads and 1.25" Holder
  • 28mm Imaging Circle
  • 17.5mm Back Focus
$9250
Back-Ordered
Expected availability: Aug 08, 2022
$24500
6 Mos. Promo Financing*
Special Order
Expected availability: 2-4 weeks

Sky-Watcher S20202 Reducer / Corrector

B&H # SKRCP120 MFR # S20202

Key Features

  • Designed for the PRO 120 ED APO
  • Focal Length Reduction - 0.85x
  • Provides Enhanced Field-edge Correction
$29500
6 Mos. Promo Financing*
In Stock

Sky-Watcher 0.85x Focal Reducer/Flattener for EvoStar 72ED f/5.8 Refractor Guidescope

B&H # SKS20212 MFR # S20212

Key Features

  • For Astrophotography/Astroimaging
  • Virtually Eliminate Spherical Aberration
  • Shortens Focal Ratio from f/5.8 to f/4.9
  • Reduces Exposure Times by 38%
$36000
6 Mos. Promo Financing*
More on the Way
Expected availability: 2-4 weeks

Explore Scientific Field Flattener (2")

B&H # EXFFEDAPO00 MFR # FFEDAPO-00

Key Features

  • Specifically Designed for Refractor OTAs
  • Improves Astrophotography/Astro-Imaging
  • Reduces Spherical Aberration
  • Fully Multicoated Optics
$15999
6 Mos. Promo Financing*
Back-Ordered

Explore Scientific Field Flattener for Canon (2")

B&H # EXFFEDAPOCA MFR # FFEDAPO-CA

Key Features

  • Specifically Designed for Refractor OTAs
  • Improves Astrophotography/Astro-Imaging
  • Reduces Spherical Aberration
  • Fully Multicoated Optics
$19999
6 Mos. Promo Financing*
Special Order
Expected availability: 7-14 business days

Alpine Astronomical Alan Gee Mark II Telecompressor

B&H # ALAGII MFR # AGII

Key Features

  • Designed for 8"+ SCT Optical Tubes
  • Air-Spaced Doublet Achromatic Lenses
  • 7-Layer Anti-Reflection Multi-Coated
  • Widens and Flattens the Field of View
$25900
6 Mos. Promo Financing*
Special Order
Expected availability: 2-4 weeks

DayStar Filters 0.5x Imaging Focal Reducer

B&H # DAFR2DT MFR # FR2DT

Key Features

  • Native 0.5x Focal Reducer
  • 0.33x Reduction with 20mm Extension Tube
  • Four-Element Lens Design in Two Groups
  • Produces Wider Field of View for Imaging
$28500
6 Mos. Promo Financing*
Special Order
Expected availability: 2-4 weeks

Tele Vue 0.8x Photographic Field Reducer and Flattener

B&H # TERF102 MFR # RFL-4087

Key Features

  • Reduces Focal Length by 20%
  • Widens Field & Shortens Exposure Time
  • Eliminates Lens Curvature
  • Requires Camera-Specific T-Mount
$31500
6 Mos. Promo Financing*
Special Order
Expected availability: 2-4 weeks

Celestron 0.7x Focal Reducer Lens for EdgeHD 925 OTAs

B&H # CE07RLEHD925 MFR # 94245

Key Features

  • Reduces OTA Focal Ratio to f/7
  • Drastically Reduces Exposure Time
  • Fully Multi-Coated Lanthanum Glass
  • Maintains EdgeHD Flat-Field Performance
$37995
6 Mos. Promo Financing*
More on the Way

Sky-Watcher 0.77x Focal Reducer / Flattener for Esprit 150 ED APO f/7 Refractor

B&H # SKS20215 MFR # S20215

Key Features

  • For Astrophotography/Astroimaging
  • Virtually Eliminate Spherical Aberration
  • Shortens Focal Ratio from f/7 to f/5.4
  • Reduces Exposure Times by 68%
$44000
6 Mos. Promo Financing*
In Stock

Sky-Watcher 0.77x Focal Reducer / Flattener for EvoStar 150DX f/8 Refractor

B&H # SKS20208 MFR # S20208

Key Features

  • For Astrophotography/Astroimaging
  • Virtually Eliminate Spherical Aberration
  • Shortens Focal Ratio from f/8 to f/6.2
  • Reduces Exposure Times by 66%
$44000
6 Mos. Promo Financing*
In Stock

Sky-Watcher 0.77x Focal Reducer / Flattener for Esprit 120 ED APO f/7 Refractor

B&H # SKS20209 MFR # S20209

Key Features

  • For Astrophotography/Astroimaging
  • Virtually Eliminate Spherical Aberration
  • Shortens Focal Ratio from f/7 to f/5.4
  • Reduces Exposure Times by 68%
$44000
6 Mos. Promo Financing*
More on the Way
Expected availability: 2-4 weeks

Explore Scientific 3" Field Flattener/0.7x Focal Reducer

B&H # EXFFFR507X00 MFR # FFFR507X-00

Key Features

  • For Astrophotography/Astro-Imaging
  • For 3" Focusers, 2" Adapter Included
  • Corrects for Spherical Aberration
  • Reduces the Focal Ratio by 0.7x
$47999
6 Mos. Promo Financing*
More on the Way
Expected availability: 2-4 weeks

Celestron 0.7xReducer Lens for EdgeHD 1400 OTA

B&H # CER7XE1400 MFR # 94240

Key Features

  • Designed to Maintain Flat Field Images
  • Five-Element Lanthanum ED Glass Lens
  • Anti-Reflection Fully Multicoated Optics
  • 0.7x Compression Factor
$71995
12 Mos. Promo Financing*
More on the Way

Alpine Astronomical Baader M68 Field Flattener

B&H # ALFFM68 MFR # FF-M68

Key Features

  • For Baader APO 95/560 Travel Companion
  • 3-Lens Field Corrector System
  • 76.11mm Back Focus
  • Telescope-Side M68a Thread
$82900
12 Mos. Promo Financing*
Special Order
Expected availability: 2-4 weeks

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