The FF01-680/42-25 is a Bandpass Filter, specifically designed with a circular shape and a diameter of 25 mm. This filter is sourced from the reputable vendor, Semrock, and boasts a catalog number of FF01-680/42-25. The item's availability and additional details can be found on the Semrock website via the provided weblink: https://www.idex-hs.com/store/product-detail/ff01_680_42_25.
This filter is made from UVFS Mal-1965 material, and it features a thickness of 2 mm. The FF01-680/42-25 has a cut-on wavelength of 659 nm and a cut-off wavelength of 701 nm, with a central wavelength of 680 nm. The coating on both the front and back of the filter is Sem FF01-68042. The filter's shape is designed in a Thin Lens style, optimizing its performance and usability.