Picture Perfect 3 in 1 Plus View Finder
This is a simple yet very useful tool for all visual artists. There are three value filters/view finders in transparent red (the red film helps to neutralize colors so you can concentrate on values)  three clear gridded viewfinders that help you to find your best composition  and two printed gray scales that go from white to black (one printed on a separate insert). There are also printed ratio finders  a table of measurements  instructions for choosing the best size for your composition  instructions for enlarging or reducing using a graph  and more instructions on using the Three in One Plus View Finder. Printed on heavy duty  bi-folded card stock. When folded  the View Finder measures 5-1/16x11 inches.