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Focal Reducers & Field Flatteners
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Tele Vue 0.8x Reducer for NP101is and NP127is Telescopes
B&H # TENPR2073 MFR # NPR-2073
Key Features
- Reduces Focal Length by 20%
- Minimizes Full-Frame Sensor Vignetting
- Increases Field of View by 25%
- Threaded for Tele Vue Imaging System
$49500
In Stock
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
$40900
In Stock
Explore Scientific Field Flattener for f/5 to f/7 Refractors
B&H # EXFIELDFLAT MFR # ES-FF2F5/F7
$14999
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
$16055
In Stock
Starfield 0.8x Field Flattener & Reducer (2")
B&H # STSFFFR08 MFR # SF-FFR-08
$16000
Special Order
Expected availability: 2-4 Weeks
Sky-Watcher Reducer/Corrector Adapter for Evostar 72ED
B&H # SKE72EDRCA MFR # S20210
Available in other Styles, Configurations & Kits
$2800
In Stock
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
$8849
In Stock
Starfield 1.0x Field Flattener & Reducer (2")
B&H # STSFFF10 MFR # SF-FF-10
$15500
Special Order
Expected availability: 2-4 Weeks
Starfield 0.6x Field Flattener & Reducer (2")
B&H # STSFFFR06 MFR # SF-FFR-06
$18000
Special Order
Expected availability: 2-4 Weeks
ZWO FF65APO 0.75x Full Frame Reducer
B&H # ZWOF65RE MFR # ZWO F65RE
$19900
Special Order
Expected availability: 4-6 Weeks
Vixen Optics FOCAL REDUCER for AX103S
B&H # VIFRAX103S MFR # ES37228
$20899
Special Order
Expected availability: 4-6 Months
Vixen Optics f/6.4 Focal Reducer for VC200L
B&H # VIFEVC200L MFR # ES37229
Key Features
- Use for Long Exposure Astrophotography
- Reduces Focal Ratio from f/9 to f/6.4
- Fits VC200L Reflector Telescope
- Decreases Exposure Time
$20899
Special Order
Expected availability: 7-14 Business Days
Vixen Optics f/5.2 Focal Reducer for the ED81S, ED103S, & ED115S Scopes
B&H # VIFRED81 MFR # ES3666
Key Features
- Reduces Focal Length by 0.67x
- Widens Viewing Field
- Shortens Exposures
- For Imaging Only
$21799
In Stock
Starfield 0.8x Adjustable Reducer for 70-102mm Refractors (2")
B&H # STSFFFRA08S MFR # SF-FFRA-08-S
Key Features
- Up to 17mm Adjustable Back Focus
- Doubles as Field Flattener
- 3 Lenses with ED Element
- Multicoated Lenses
Available in other Styles, Configurations & Kits
$23900
In Stock
Starfield 0.8x Adjustable Reducer for 102-155mm Refractors (2.5")
B&H # STSFFFRA08L MFR # SF-FFRA-08-L
Key Features
- Up to 17mm Adjustable Back Focus
- Doubles as Field Flattener
- 3 Lenses with ED Element
- Multicoated Lenses
Available in other Styles, Configurations & Kits
$23900
In Stock
Starfield 1.0x Adjustable Field Flattener & Reducer (2")
B&H # STSFFFA10 MFR # SF-FFA-10
$23900
Special Order
Expected availability: 2-4 Weeks
Vixen Optics Focal Reducer HD for AX103S & VC200L Telescopes
B&H # VIREDHD MFR # ES37247
Key Features
- Use for Long Exposure Astrophotography
- Reduces Focal Ratio
- Fits VC200L Reflector, AX103S Refractor
- Decreases Exposure Time
$24399
Special Order
Expected availability: 3-5 Weeks
Vixen Optics SD Flattener HD Kit
B&H # VISDFHDK MFR # ES37246
$26799
Special Order
Expected availability: 3-5 Weeks
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
$27500
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
Available in other Styles, Configurations & Kits
$39500
In Stock
Vixen Optics 0.62x Focal Reducer for the VMC200L & VMC260L Telescopes
B&H # VIFRVMC200L MFR # ES3871
Key Features
- Reduces Focal Length by 0.62x
- Widens Viewing Field
- Shortens Exposures
- For Imaging Only
$29999
Special Order
Expected availability: 7-14 Business Days
Tele Vue Large Field Corrector
B&H # TELFC MFR # LCL-1069
$30000
Special Order
Expected availability: 2-4 Weeks
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%
Available in other Styles, Configurations & Kits
$30606
In Stock
Vixen Optics ED80sf Focal Reducer for Sony Alpha
B&H # VIFRED80SFS MFR # ES37233
$30999
Special Order
Expected availability: 4-6 Months
Vixen Optics ED80sf Focal Reducer for Nikon
B&H # VIFRED80SFN MFR # ES37231
$30999
Special Order
Expected availability: 4-6 Months
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
Available in other Styles, Configurations & Kits
$31000
In Stock
Sky-Watcher 0.9x Reducer/Corrector for Evolux (62mm)
B&H # SK09RFE62ED MFR # S20206
Key Features
- 62mm, f/5.8, 360mm Focal Length
- 55mm Back Focus
- 30mm Illuminated Field
- M56x1 Female & M48 Male Threads
$37500
In Stock