Combining two lenses

• Lens Combinations (Text file).

• Lens Combinations (Excel file).

  
  

Perspective and stereo photography

• Perspective Paper (PDF file).

  
  

Maximum depth in stereo photography

• MAOFD in words and pix (Word file).

• MAOFD Explanation (Text file).

• MAOFD Instructions (Text file).

• MAOFD Spreadsheet - long (Excel file).

• MAOFD Spreadsheet - short (Excel file).

• MAOFD Spreadsheet - medium (Excel file).

  
  

Graphics

• Depth of field for stereo (from Kingslake) (GIF file).
• Spreadsheet for DOF (Excel file).
• How to use the spreadsheet (Text file).

  
  

Other

• Depth clues (Text file).
• Tangential and Sagittal planes (Text file).
• What solid angle does your format subtend at your eye? Rylander calculation. (Excel file).
• Sketch - if you want to do the angular subtense calc by spherical trig (GIF file).