Place your order by 4:00 PM EDT Tomorrow and your order will ship the same day. For further details see delivery estimates in cart. All orders are subject to verification. International orders are processed the next shipping day.
Depth-of-field (DOF) is more than a button on the front of a camera; it is a complex mathematical system that interweaves focal length, focusing distance, and aperture. Many modern SLR/DSLR lenses no longer have complete or accurate DOF markings. So to aid photographers, this ExpoImaging ExpoAperture² Depth-of-Field Guide gives shooters a full scale that can effectively be read with a single glance.
To use the guide, one needs to select the sensor/film size—anywhere from a 2x digital crop factor to 6x6 cm film—then a focal length ranging from 15mm to 135mm. The scale will compensate for the varying film/sensor sizes in relation to the selected aperture. When the parameters are chosen, the guide returns a range of apertures and the corresponding areas that will be rendered in focus for each f-stop.
The ExpoAperture² is compact, and easily finds its home in just about any camera bag or pocket. This ExpoAperture² also includes a CD-ROM with an instruction manual, a printed quick-start guide, a storage pouch and a sensor/film format reference chart.
This version of the ExpoAperture² is a two disc kit that includes a standard guide for 15-135mm lenses, and a second disc for telephoto focal lengths from 70-600mm. All measurements are in metric units.
Assert better creative control over depth-of-field
Quickly determine aperture setting, depth of field result, or hyperfocal distance
Develop an intuitive understanding of depth-of-field relationships with continued use
Fast and easy to use
Compensates for a wide variety of sensor formats and film sizes