The MidOpt ND120 Neutral Density (ND) Filter has an optical density of 1
The MidOpt LA120 Light Balancing Filter (Minus Blue) corrects the ~120 mired color change created by some high color temperature lighting (appearing bluish)
and a Bi525 filter can be used to block excitation sources and other interfering longer and shorter wavelength light while passing desired green emission wavelengths
It may also have a slight reduction in infrared (IR) and deep red transmission
Ultimate Machine Vision Filter Test Kit - MidOpt SK100 Cleaning Kit The MidOpt ND120 Neutral DensityThe MidOpt SK100 Ultimate Machine Vision Filter Kit is a powerful resource for testing and evaluating image quality, featuring 70 Machine Vision Filters for testing in the ultraviolet (UV), visible (VIS) and near infrared (IR). The filters have 27mm threaded mounts, and step up and step down rings are included to fit M25. 5 and M30. 5 lenses. Filter categories include Bandpass, Dual Bandpass, Longpass, Neutral Density, Shortpass, Polarizing, Light