| ExpoImaging ExpoAperture2 Depth-of-Field Guide - 2-Disc Kit |  | Brand: ExpoImaging
Category: Photography
Buy New: $39.95
as of 5/24/2012 20:57 EDT details
New (5) from $39.95
Seller: Kellards
Media: Electronics
Shipping Weight (lbs): 0.3
Dimensions (in): 8 x 5.3 x 0.3
MPN: EXPOA02NT
Model: 751751001104
UPC: 751751001104
EAN: 0751751001104
ASIN: B000YN0VWU
Shipping: Eligible for FREE Super Saver Shipping
Availability: Usually ships in 24 hours
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| Features:
| • | 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 |
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Product Description
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 includes 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.
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