I'm a big fan of Loreo stereo lenses. They're well made and inexpensive. You can use stereo pairs to calculate depth, and in this case, you only lose half your

I'm a big fan of Loreo stereo lenses. They're well made and inexpensive. You can use stereo pairs to calculate depth, and in this case, you only lose half your horizontal resolution (vs. losing significant horizontal and vertical resolution on the K lens) http://www.loreo.com/pages/products/loreo_3dcap.html http://www.loreo.com/pages/products/loreo_3dcap.html