0.8x Focal Reducer Prism System_Roof Universally applicable dark sky filter

Universally applicable dark sky filter with 77mm filter thread for photo lenses

making it perfect for backyard observing

and there is no risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements

Their waterproof and fog-proof construction

due to Explore Scientific’s open-architecture approach to the PMC-Eight

0.8x Focal Reducer Prism System_Roof Universally applicable dark sky filterThe Explore Scientific 0. 8x Focal Reducer lets astrophotographers explore the wonders of wide field astrophotography in an easy to use package. The 0. 8x Focal Reducer works with the following Explore Scientific telescopes: ES ED0806 02 ES ED10207 02 FCD100 0806 02 FCD100 10207 02 FCD100 10207 CF 01 The 2 element 0. 8x focal reducer turns the 480 mm focal length telescopes into devices with a focal length of 384 mm. This changes the telescopes from