27008 C 25 mm Dia. OIII 8nm Bandpass Filter
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Chroma
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 504 nm
- Cut On Frequency
- 496 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4623264863986838
- λ
- 500 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
27008 C 25 mm Dia. OIII 8nm Bandpass Filter by Chroma
The 27008 C 25 mm Dia. OIII 8nm Bandpass Filter is a high-quality optical component manufactured by Chroma, a leading vendor in the field of advanced optical solutions. This filter is specifically designed for applications that require precise wavelength selection and narrow-band imaging, such as astrophotography and fluorescence microscopy.
The filter features a circular shape with a diameter of 25 mm and a thickness of 3.5 mm, making it compatible with a wide range of optical systems. It is made from UVFS MAL-1965 material, ensuring durability and high optical performance. The filter's base shape is a thin lens, which contributes to its compact design and ease of integration into various setups.
The 27008 C filter has a central wavelength (CWL) of 500 nm, which is the wavelength at which the filter's transmission is maximum. The cut-on wavelength is 496 nm, and the cut-off wavelength is 504 nm, indicating a narrow bandpass of 8 nm. This narrow bandpass ensures high contrast and minimal background noise in the resulting images.
The filter's coating is another crucial aspect of its performance. Both the front and back surfaces of the filter are coated with Chroma's proprietary coating, identified as "chr 27008". This coating enhances the filter's transmission, reduces reflection, and increases its overall optical efficiency.