Player One S-Series 2 inch ERF Filter - Dark Clear Skies Player One Ceres-M scratches and aging effects

scratches and aging effects

making it the perfect choice for planetary

High power of wider transmission rang

Compatible with Takahashi FS-60CB

With a rectangular sensor

Player One S-Series 2 inch ERF Filter - Dark Clear Skies Player One Ceres-M scratches and aging effectsPlayer One S Series 2 inch ERF Filter SKU: ERF2 Category: Filter and Wheel Description: The Player One S Series 2 inch ERF Filter utilizes high quality optical glass substrate and multi layer composite coating technology, delivering excellent optical performance for astrophotography. The ERF filter is an assistant filter specifically designed for the Quark Chromosphere (Ha version). Its purpose is to reject excess energy and extend the lifetime of