Player One Astronomy CH4 8nm Filter E-series

The Player One E-Series serves as a superior successor to the S-Series, crafted with top-notch optical glass and enhanced multi-layer coating technology. This series goes above and beyond the S-Series standards and is specially fine-tuned for CMOS and CCD cameras, making it a go-to choice for high-level astrophotography. Specifications Size: 1.25 inches Thread: M28.5 x 0.6 Frame Dimensions: 5mm body + 2.5mm thread, totaling 7.5mm Glass Thickness: 1.85mm Bandwidth: 8nm Center Wavelength (CWL): 889nm Peak-to-Valley (PV): 1/4 lambda Light Throughput: Around 90% Optical Density for Blocking: OD4 With these specs, you can expect professional-grade results in your astrophotography projects.