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Focal Reducers & Field Flatteners
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Sky-Watcher 0.77x Focal Reducer / Flattener for Esprit 150 ED APO f/7 Refractor
BH # 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%
Available in other Styles, Configurations & Kits
Sky-Watcher 0.77x Focal Reducer / Flattener for Esprit 120 ED APO f/7 Refractor
BH # 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%
Available in other Styles, Configurations & Kits
Tele Vue 0.8x Reducer for NP101is and NP127is Telescopes
BH # 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
Celestron 0.7x Edge HD Reducer Lens
BH # CER7XE1100 MFR # 94241
Key Features
- 0.7x Compression
- Fully Multicoated Optics
- 5-Element Design
- Increase Speed by 1.0 F-Stop
Celestron 0.7xReducer Lens for EdgeHD 1400 OTA
BH # 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
Alpine Astronomical Baader M68 Field Flattener
BH # 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