Sky-Watcher Esprit 100 EDX Field Flattener (Sky-Watcher, catalogue number: SW-5432) is a field curvature corrector designed for astrophotography with the Esprit 100 EDX refractor. It provides a corrected image circle of 44 mm, suitable for large sensors, including full-frame sensors. It improves star shapes near the edges of the frame while preserving the telescope's focal length and focal ratio.
Key features
• optical design matched to the Sky-Watcher Esprit 100 EDX refractor • field curvature correction that helps achieve consistent focus across the frame • magnification factor of 1×, with no reduction in the telescope's focal length • multilayer anti-reflection coatings (FMC) on all air-to-glass optical surfaces • aluminium housing
Included items
• field flattener: Sky-Watcher Esprit 100 EDX
Technical specifications
• manufacturer: Sky-Watcher • catalogue number: SW-5432 • type: field curvature corrector (field flattener) • intended use: astrophotography with the Sky-Watcher Esprit 100 EDX refractor • magnification factor: 1× • corrected image circle diameter: 44 mm • backfocus: 55 mm • optical coatings: FMC (Fully Multi-Coated) • housing material: aluminium • cell diameter: 2"
The corrector lets you use more of the frame when imaging the night sky by reducing the effect of field curvature on star shapes near its edges.
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