still working filling this all in

Vocabulary - for Optics, Lenses, etc.

• Depth of Field
• Depth of Focus
• Magnification
• Focal Distance/Length
• Field of View

Part Suppliers:

• Surplus Shed (so far least expensive and most reliable)
• Edmund Scientific Optics
• Ebay (of course - but you need to know what you are looking for)

Optical Principles:

Reference Articles: