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To find the near, far and hyperfocal distance for a specific lens, enter the focal length (mm), aperture (f-stop) and the object distance (whole or decimal number) in the orange areas. The program will calculate the near, far, depth and hyperfocal distances in the blue areas.
f-stop Object

                      only enter information in the orange areas

The default unit of measure for distances is feet. You can override it by setting the option below.
Use Meters as Unit of Measure in Depth-of-Field calculation.

Depth-of-Field Table for the above Focal Length
f/5.6 f/8 f/11 f/16 f/22 f/32 f/45

When you want to return to OCPA's Website Opening Page,
just close
this browser window

|    Depth-of-Field    |    Focal Length Conversion Table    |
|    Teleconverter & Extension Tube Exposure    |
|    Resolution and File Size    |
|    Focal Length Needed    |    Angle Of View    |
|    Flash Calculator    |    f/Number Arithmetic    |
|    Scanning & Printing Calculators    |
|    Calculator Home    |

If you have reached this page using a search engine, you may not be seeing the entire thing as this site uses frames. Click here to reset the page.
|    Calculator Page Reset    |

|    Return to OCPA Website Opening Page    |

|    Contact OCPA    |

    This website is published by the OREGON COAST PHOTOGRAPHERS' ASSOCIATION, Inc. All articles, features, images and other material posted within do not necessarily reflect the views of OCPA’s Board of Directors, officers, membership, associated organizations or editors of this publication. Any/all brand, product or business names listed are copyrighted, trademarked and/or registered and are not necessarily endorsed by OCPA.
Reprinting / reposting of any article or web page, in whole or in part, from this site may be used in non-commercial photography club newsletters or web sites as long as the item is not specifically copyrighted and credit is given to the author and this web site as the source of the information. Any other type of reproduction may be done with specifically written permission only.
Inquiries about this publication may be made by directing them to the webmaster, c/o Oregon Coast Photographers’ Association, Inc., P.O. Box 5646, Charleston, OR 97420 or

Copyright © 2002-03 OREGON COAST PHOTOGRAPHERS' ASSOCIATION, Inc. All rights reserved.
Version: 1.0
Revised: October 20, 2002

This program is kindly contributed by Michael Gillett. You may use this code freely for any non-commercial purpose, written authorization is required for all other uses. Please direct any questions, suggestions or comments to