Processing and Formatting Effects > Adding and Removing Film Grain > Adding Grain to a Clip >

# Adding Monochrome Grain

Using the preset B/W grain signature option, you can also add grain generated by a monochrome noise filter. This option is useful if you are adding grain to monochrome clips.

Monochrome noise does not have to be black and white noise. You can adjust the RGB Gain sliders to tint the grain in cases where you are adding grain, for example, to sepia monochrome clips.

To add monochrome grain using the B/W option:

1. From the Grain Signature box, click B/W.

   The B/W option applies grain with a preset gain algorithm.

2. To add grain to the clip, adjust the RGB Gain sliders:
   - Enable Proportional and drag the RGB Gain sliders to add grain proportionately to the R, G, and B channels.
   - Disable Proportional and adjust the R, G, and B channels independently to fine-tune the grain. This step is required if you want to tint the monochrome grain.
3. To compensate for under or overexposure, set the relative exposure offset by entering a value in the fstop field.

   The range of permissible fstop values is from -3 to 3. Values entered must be integers.

4. To adjust the radius of the grain along the X-axis, drag the RGB Radius X sliders:
   - Enable Proportional and drag the RGB Radius X sliders to add grain proportionately to the R, G, and B channels.
   - Disable Proportional and adjust the R, G, and B channels independently to fine-tune the grain radius.
5. To adjust the radius of the grain along the Y-axis, drag the RGB Radius Y sliders:
   - Enable Proportional and drag the RGB Radius Y sliders to add grain proportionately to the R, G, and B channels.
   - Disable Proportional and adjust the R, G, and B channels independently to fine-tune the grain radius.
6. When you are satisfied with the result, click Process to add grain to the clip.