Not all cameras have that feature and I can not find such a feature in the W320 User Manual.

You can change a photo to black & white by using software.

There is an excellent free photo manipulation program called Irfanview.

Go to www.irfanview.com and download Irfanview.

After you install Irfanview, look under the "File" command and open a photograph.
Look under the "Image" command and select "convert to grayscale".

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