ND04A Dia. 25 mm ND Reflective Filter; SM1-Threaded Mount; Optical Density 0.4

The ND04A is a Neutral Density Filter, specifically designed with a circular shape and a diameter of 25 mm. Manufactured by Thorlabs, this filter boasts a thin lens shape and is made from the high-quality material, n-bk7 schott. The ND04A has a wavelength of 633 nm, making it suitable for a wide range of optical applications.

This filter features a front and back coating of tho nd04, providing exceptional optical density. The coating ensures that the filter can effectively reduce light intensity without causing any significant shifts in color balance. This makes it an ideal choice for applications that require precise light control, such as in imaging and photometry.

The ND04A comes with an SM1-threaded mount, ensuring secure and easy installation into your optical system. The mount is designed to be compatible with most standard optical components, providing flexibility and convenience in system design.

According to the vendor's website, the ND04A is currently in stock, indicating its availability for immediate purchase and use. For more information, you can refer to the provided weblink, which leads to the product's page on Thorlabs' official website.