Rogue Photographic Design

Cap Buckle

Ray Flash


Kelby Training DVDs


All Products

Replacement Parts

Bundle Offers

Store Information
Shipping & Returns

Privacy Policy

Terms of Use

Contact Us

Printable Catalog

Site Map
ExpoAperture2 Depth-of-Field Guide
Click to enlarge

Educator Dial
ExpoAperture2 Depth-of-Field Guide

The ExpoAperture2 Depth-of-Field Guide has been discontinued and is only available as a METRIC 2 Disc Kit in limited quantities. 

Depth of Field Guide 2 Disc Kit - METRIC:

  • Standard Disc covers 10-135mm focal length lenses
  • Telephoto Disc covers 70-600mm focal length lenses
  • Available in Metric distance units
  • Made in the USA


  • Quickly calculate depth of field
  • Quickly calculate hyperfocal distance
  • Quickly select best aperture for desired depth of field
  • Uses aperture, focal length, and adjusts for sensor / film size
  • Can be used with most DSLR cameras
  • Can be used with film cameras from 35mm half frame to 8x10


  • 1x Metric Depth of Field Guide Calculator - Standard
  • 1x Metric Depth of Field Guide Calculator - Telephoto
  • 2x Storage pouches
  • Quick Start Guide
  • Camera sensor size / film format quick reference chart

We also have the Imperial EDUCATOR dial available.
The distance scale on the Imperial ExpoAperture2 is measured in feet and inches as opposed to meters and centimeters.