Sky-Watcher .77x Reducer/Flattener for Esprit 150ED Telescope
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- 0.77x Reducer/Flattener for Esprit 150 # S20215
- 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
- Includes reducer, metal thread-on caps, back focus spacer and M48 thread adapter
- Built-in 2" filter cell for mounting filters into the light path
| Free Shipping Graphic | Free US Shipping |
|---|---|
| Hide Found a better Shipped Price on Frontend? | No |
- 0.77x Reducer/Flattener for Esprit 150 # S20215
- 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
- Includes reducer, metal thread-on caps, back focus spacer and M48 thread adapter
- Built-in 2" filter cell for mounting filters into the light path
| Free Shipping Graphic | Free US Shipping |
|---|---|
| Hide Found a better Shipped Price on Frontend? | No |
Sky-Watcher .77x Reducer/Flattener for Esprit 150ED Telescope # S20215