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-   -   Canon 7D DOF demonstration (https://www.dvinfo.net/forum/canon-eos-crop-sensor-hd/466083-canon-7d-dof-demonstration.html)

Roger Shealy October 19th, 2009 08:04 PM

Canon 7D DOF demonstration
 
Lot's of discussion about whether the 7D with its cropped sensor can produce shallow DOF. I thought I'd do a few shots to determine its capabilities. You be the judge:


Gustav Damave October 19th, 2009 10:49 PM

The circles of confusion depend only on aperture and focal length, not on sensor size. Creating a similar image for a larger sensor requires a greater focal length. Creating a similar DOF on the D7 sensor for a similar image requires about half a stop wider aperture. This illustration explains DOF quite clearly: File:Diaphragm.svg - Wikipedia, the free encyclopedia

Roger Shealy October 20th, 2009 05:46 AM

Gustav,

Great diagram. If anyone is waiting on this camera for fear of inability to obtain shallow DOF, they needn't worry.


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