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Sky-Watcher 0.77x Reducer/Flattener for Esprit 150ED f/7 Refractor
SKU: SKWS20215 MFR: S202015
Earn VIP Reward PointsKey Features
- Achieve stunning, wide-field astrophotography with a 0.77x focal reduction for your Esprit 150ED.
- Enhance image clarity and correct field curvature with this precisely engineered reducer/flattener.
- Experience brighter, faster imaging at f/5.4, capturing more light for faint celestial objects.
- Ensure perfect focus and sharp stars across your sensor with optimized back focus for astrophotography.
- Designed specifically for the Esprit 150ED f/7 refractor, guaranteeing seamless optical integration.
- Capture breathtaking deep-sky objects with improved resolution and a wider field of view.
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About Sky-Watcher Reducer/Flattener
This 0.77x Reducer/Flattener is designed for the Esprit 150ED f/7 Refractor. It decreases the f/ratio from the optical tube's native f/7 to f/5.4 and reduces exposure time by 68% compared to native f/7. Features 36mm fully illuminated field but can handle full frame as well, 90mm back-focus or 55mm using the included back focus spacer and M48 ring. Compatible with both APS-C and full frame sensors.
Sky-Watcher Reducer/Flattener Features
- 36mm fully illuminated field, compatible with both APS-C and full frame sensors
- 90mm back-focus (55mm when back focus spacer and M48 ring installed)
- Drops f/ratio from native f/7 (1050mm) to f/5.4 (810mm)
- Reduces exposure time by 68% compared to native f/7
- 2.54 x 1.7-degree field of view when used with a full frame camera
- 1.66 x 1.11-degree field of view when used with APS-C crop sensor
- Built-in 2" filter cell for mounting filters into the light path