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Old Jan 30, 2005, 11:59 AM   #1
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Thetwo images were taken in aperture mode and macro setting - hand held camera. The first image was taken at f:2.5. The second image at f:8.0. Because DOF is very narrow in macro mode, one will see a greater change in DOF as aperture is increased or decreased than whenshootingwithout the macro setting ON.

In general,digicams havea greater depth of field than D-SLRand SLR cameras.Asthe size of the film plane isdecreased, i.e. small sensor size, theDOF of the lens increases. Hence a digicam will have a greater DOF for a given aperture setting andat a given focal length than a D-SLR or SLR. If thetwo images were captured in normal mode, very little difference in DOF would be observed.

Rod

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Old Jan 31, 2005, 2:29 AM   #2
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Rod, thank you - that was really useful. :idea:

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Old Jan 31, 2005, 3:35 PM   #3
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You are more than welcome. The greater DOF of digicams is why most digicams have a portrait setting. When this setting is used, the background is electronically blurred. The use of this setting tocontrolDOF is not limited to portraits. It can be appliedto otherimage capture scenes.

Blurred backgrounds can also be done with Photoshop.

One of the wonderful aspect about digital capture is the image media ,which lends itself well to taking many picture and deleting the experiments that did not work.

Electronic "film" is cheap once the capital investment has been made.

Rod
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Old Jan 31, 2005, 3:43 PM   #4
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nice example rod

the move to dSLR has been great for solving DOF problems
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