The 676 US LPF-12.5 is a circular Longpass Filter, measuring 12.5 mm in diameter and 3mm in thickness, sourced from Iridian Spectral Technologies. This filter is designed with a steep cut-on wavelength of 676.6nm, providing a sharp transition between the blocked and transmitted wavelengths. The filter features a thin lens shape and is coated with IRR 676-US-LPF on both the front and back surfaces, ensuring high-quality performance and durability.
The filter is available for purchase directly from the vendor's website, with the current status indicating that it is in stock. The catalog number for this item is 676 US LPF-12.5, and it can be found at the following weblink: https://www.iridian.ca/product/676-us-lpf/.
This filter is made from UVFS MAL-1965 material, which is known for its excellent optical properties. The physical data of the filter includes a cut-on wavelength of 676.6nm and a cut-off wavelength of 0nm. The filter's geometry is defined by its 12.5mm diameter and 3mm thickness, making it suitable for a wide range of optical applications.