004FCC25 25 mm Dichroic Colour Correction CTB Filter for 3200K to 4800K

The 004FCC25 is a Dichroic Colour Correction CTB Filter, specifically designed to correct the colour temperature from 3200K to 4800K. This filter, sourced from Knight Optical, is a crucial component for various optical applications where colour accuracy and correction are paramount.

The filter is made of N-BK7 Schott, a high-quality optical glass known for its excellent transmittance and low auto-fluorescence. The base shape of the filter is circular, with a diameter of 25 mm, making it suitable for a wide range of optical systems. The filter has a thickness of 1.1 mm, providing sufficient structural integrity while maintaining minimal optical path deviation.

The 004FCC25 filter features a dichroic coating on both the front and back surfaces, identified as 'kni 004fcc-0'. This coating is specifically designed to reflect or transmit light of certain wavelengths, thereby correcting the colour temperature. The central wavelength of this coating is 588 nm, which is within the orange-red part of the visible spectrum.

The filter is shaped as a thin lens, which means it has at least one surface that is curved to refract incoming light. This shape can be beneficial in applications where light needs to be focused or diverged.

The 004FCC25 filter is currently in stock and available for immediate purchase from Knight Optical's website. The provided weblink leads directly to the product page for easy access and ordering.