ANTLIA ERF Dual Band High Transmittance Astronomical Filter 25nm FWHM Ha&CaK/CaH Solar Filter M48*0.75
No se pudo cargar la disponibilidad de retiro
Specifications
Brand
Product type
Technical specs
Design and durability
Introduction:
- Adopting the latest process design with high transmittance, high cutoff, and flat top optimization, as well as advanced coating technology to ensure the accuracy of its wavelength.
T>95% at H-AIpha, FWHM 25nm
T>90% at CaK & CaH, FWHM 25nm
- Blocking (200-1700nm): Ultra far design for UVIR cutoff. Due to the strong solar energy, the coating range is wider, from 200-1700nm, which blocks more of the solar energy in the infrared band. The out of band blocking design of OD4 (0.01%) at 300-1200nm is designed for safety considerations.
- 1/4 Lambda quartz substrate production: The filter uses a quartz substrate processed by secondary double-sided precision polishing. The 1/4 Lambda waveform has better thermal stability, lower glass expansion coefficient, and denser film layer, which is less susceptible to environmental influences and has a longer service life. The 1/4 Lambda waveform ensures that the impact of surface shape on image quality and wavelength on the image is minimized when paired with professional solar observation equipment.
Package Included:
- 1 x Filter
- Businesses may need to employ various types of legal pages on their websites or mobile apps. Some, like Privacy Policies, are required by law, while others, such as a Terms and Conditions agreement (T&C), are not. Regardless of legal demands, you may find that your company needs one or more legal pages for compliance and optimal operation.
- In this article, we will go over the most common legal pages, walk you through a summary of what each requires, and explain why you may need it. In addition, you'll find a sample template for each type of legal page so you can quickly get started writing your own.
If you have any questions about this product, please let us know by filling out the form below, and we will contact you as soon as possible.