0.77x Reducer/Flattener Lens for Esprit 150 Telescope (Model S20215) - Perfect for Astrophotography & Wide-Field Viewing
$288.75
$525
-45% OFF
Free shipping on all orders over $50
7-15 days international
22 people viewing this product right now!
30-day free returns
Secure checkout
61206102
Guranteed safe checkout
Description
- 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
