Light Balancing Filter (Minus Red), 400-700nm - MidOpt LB080 Size:27mm so relative sensitivity of each

so relative sensitivity of each camera’s imaging sensor at 940nm must also be considered

The AC400 is anti-reflection (AR) coated to limit glare and minimize reflection loss and is oleophobic coated to prevent finger print smudging and to keep oil and other solvents from collecting on the lens

two ND200 filters stacked together would perform approximately the same as one ND400 Filter

it's also recommended for protecting the camera’s sensor from stray light emitted by lasers or other high power near-IR (NIR) light sources

but each have their advantages

Light Balancing Filter (Minus Red), 400-700nm - MidOpt LB080 Size:27mm so relative sensitivity of eachThe MidOpt LB080 Light Balancing Filter (Minus Red) is used to raise lower color temperatures (by 80 mired) by highlighting a higher percentage of the red component of the spectrum to create more natural looking color. It's sometimes used with fiber optic lighting. The LB080 features StablEDGE design to reduce angular dependency and minimize the effects of short shifting.