Photo shooting with blur background, how?

Question

How to take a photo focusing a particular object and rest of the thing in background blur.Please Tell exact settings.? for example. http://wvs.topleftpixel.com/08/08/21/

And photo showing sky above the photographer and land below him?for example http://wvs.topleftpixel.com/08/08/20/

Answer 1

The picture of the lock was achieved either by attaining an extremely narrow depth of field, or by manipulating the image afterward using something like Photoshop.  

I only know how to control depth of field using one of those old-fashioned film cameras.  Then you set the exposure that will give you the lowest f-stop.  See the section on image quality in this wikipedia article:

http://en.wikipedia.org/wiki/F-number

The only other way I know of is through panning, but the object has to be moving fairly quickly.  In panning, you move the camera during exposure, keeping the object in the same position in the frame.  The object is clear but the background blurs by.  It's a great way to give a sense of speed to your shot.  It's usually used when photographing race cars and airplanes.  See:

http://digital-photography-school.com/bl...

http://photography-techniques.suite101.c...

Answer 2

The first example is called selective focus ... a long lens with a wide open aperture ... the way the out of focus background is rendered is called Bokeh.

The second example is the result of using a wide angle lens and small aperture to pull a lot of depth of field ... nearly at the photographers feet to infinity.

Answer 3

for the first itts called bokeh. It comes from having a very shallow depth of field. Larger aperatures, longer lenses and distance from the subject can all affect the depth of field. So if you have a lens that will open up to 1.68or 1.4 do that on say a 50 mm lens

If you do not have a lens that opens that wide use your largest aperature on a longer lens , say 85–150

Remember 1/3 of your area in focus will be in front of the object and 2/3 behind

this can also be done in photoshop by making another layer. cutting out the part you want to stay in focus on that layer and adding gausian blur to the layer till the desired effect

The second looks like just the composition to put the shy and land where you want it and maybe some polarization using a filter Thhis one has a deeper depth of field using a wider angle lens and smaller aperature. There may be some vignetting as well at the edges

Answer 4

If all you have is a point-and-shoot camera your best hope to get the 'blur' is to set your camera on 'portrait mode'. Other than that there's not much you can do.