f/NUMBER ARITHMETIC CALCULATOR

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• Enter an initial f stop value in f₁
• Enter the number of stops (orange) to add (let in less light) or subtract (let in more light) by entering a positive number (to add) or negative number (to subtract) 
• f₂ is the resulting f stop (blue)
  

Note: Only whole stop rounding works for now

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|    Teleconverter & Extension Tube Exposure    |
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Copyright © 2002-03 OREGON COAST PHOTOGRAPHERS' ASSOCIATION, Inc. All rights reserved.
Version: 1.0
Revised: November 21, 2002