• johnnyoptic - Home Page
• Tilt Lenses (For Sale)
• DIY Optics (Tutorials)
  • Homemade Lens Primer
  • What's all the Fuzz About?
  • Measuring Focal Length, Aperture and F-stop
  • The Monocle
  • Homemade Telephoto Lenses
  • Replicating the Rodenstock Imagon
  • Homemade lenses and Digital Infrared Photography
• Image Gallery
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Test Results

The image on the right was shot with disk #3 (large row of holes surrounding a central opening).