Grayscale Effect provides multiple methods to convert color to grayscale in a minimalist and convenient manner. The methods involve Intensity, Luminance, Luma, Max Value, L-HLS, RMY Gray, Red, Green, Blue and DIY. In DIY, the user can choose her own RGB mix ratio.
You can download the Win or Mac trial version. The watermark will be removed once you enter the activation code. The trial is full-featured except for the watermark.
This effect works with 8-bpc, 16-bpc, and 32-bpc color. The optimal usage will require 32-bpc and full resolution. In 32-bpc color, After Effects does not clip the video and allows the user to view any out-of-range data.
Grayscale Type – Switch between Intensity, Luminance, Luma, Max Value, L-HLS, RMY Gray, Red, Green, Blue and DIY. Default is Intensity.
Layer Blend Ratio – Define the amount of effect you wish to use. At 100% the entire effect is active, and none at 0%. Default is 100%.
For DIY, the Red, Green and Blue channels can be mixed based on the ratio. The total for Red, Green and Blue should ideally be 1.0 but feel free to experiment.
Red Ratio – Red component in grayscale.
Green Ratio – Green component in grayscale.
Blue Ratio – Blue component in grayscale.