Quote:
Originally Posted by ncbcymtechie
For a ship in the distance, a point-and-shoot just isn't going to cut it.
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Even a full frame DSLR won't be able to get a blury background on some subjects such as a ship in the distance
According to DoFMaster a full frame Nikon D3 with a 50mm at f/1.4 if you focus to 193ft everything behind the point of focus will be sharp. The difference between that and a P&S is the distance in front of the subject that will be in focus. For the same field of view the P&S (with a crop factor of 6) will be in focus from 27ft to ∞ the D3 96ft to ∞.
The differnce between the cameras comes in the mid ranges such as those used for portaits where the background is close to the subject. A 100mm f/2.8 lens on the D3 with a subject 15ft away will only have a DoF of 1.14ft (and a nice blury background) but the P&S will have a DoF of 7.2ft meaning that in a standard indoor setting the background will still be in focus.