A black and white photo to sketch effect in Photoshop.
The following tutorial on constructing an Inexpensive Light Tent was Submitted by Jeffrey Bail. See Jeffrey's Flickr Account here.
Learn to create a realistic IES (photometric) lighting effect. You will be using Photoshop CS4 as well as some free plugins and software.
Begin by converting your artwork into a Smart Object. This will allow you to non-destructively makes edits, so you can remove them if you need to.