Demonstration of background blur by composite images

How I've calculated in my previous blog entry, is it quite difficult with digital compact- and bridge cameras thereby to highlight objects in the foreground, to make the background out of focus. Even with Aperture 2,8, who offer many good bridge cameras, is the background not so out of focus, that this an object clearly highlighted by 35 cm size.

The calculations had surrendered, that the background is clearly blurred, If the object is small. Unfortunately, you can not simply reduce its object, before you shoot it, and not always suffice to depict a part of the object. Fortunately, an enlargement of the sensor in the camera has the same effect. This can be achieved, by take a digital game reflex camera, because you typically have a larger sensor. You can also simulate, by you multiple images in Panorama mode, for example, the compact- or bridge camera makes and then composed these. I've once tried this using a small Angel as Weihnachtsbaumschmuck:

Engel als 1 FotoEngel aus mehreren Fotos zusammengesetzt

The upper image is a photo directly.

The lower image is composed of six photos: in two columns each 3 Images over each other. Because of the FZ100 panorama mode does not support it, Photos in two rows to make precisely, fit together the not well, so I had to significantly curtail the composite image, so it has straight edges. Probably I have gained nothing by, that I have - made three in a column only six images, for this but more precisely arranged, would have been probably almost the same result. Perhaps you can exercise which, but in any case: If it has not pursued, It brings little, a picture of 6 rather than from 3 Images to assemble.1

The two images compared revealed several findings:

  1. The additional blur of the image background by piecing together from multiple images is clearly visible: For example, the branch is, depends on where the Angel, in the bottom picture much more clearly against the background of exempted as in the upper image. The needles of the tree in the background of this branch are still clearly individually recognizable in the upper image, in the bottom picture, they are blurry almost to a uniform gray.
  2. Obviously, the exposure is somehow different. All are recorded with the camera's built-in Flash. The upper image is upright, so came the Flash from the side, While the lower image from photos is composed, all were recorded in landscape mode, meaning. the Flash was the top. This effect is visible in the shadow of the Angel: In the top photo, the shadow of the Angel right by the Angel located, because the Flash was left, in the bottom image of the shadow under the Angel is while, because the Flash above the lens was.
  3. The camera has made different auto white balance from me some unknown reason, so that the colors of the two images differ.

Conclusion

Actually you can convert an object in the foreground with digital bridge- or compact cameras stand out clearly from the background, If the object is not moving. It is advisable to,1

  1. manually hot to, Thus the photos, where the image will be assembled, have the same focus point,
  2. the exposure to fix, so that the composite image is uniformly illuminated. I have achieved this through manual exposure setting. This is simply: You take a picture with automatic exposure in portrait mode only and can then display exposure time and aperture. It then adjusts this in manual mode.
  3. It is very difficult, Images without making assistance of panorama mode so, that they fit well together. Most cameras offer only the support in Panorama mode, images in 1 Column one above the other or 1 Line side by side to make, but not, to compose images from multiple columns and multiple rows.
  4. Thus one of the object, This should be hot, caught the right neckline, has proved practical it, first to set the camera to the object, but not to trigger. Then it turns on the spot and begins with the first photo, It makes one man at a time.

You can then the image on the computer, for example, using the Microsoft composite Editor (MCE) automatically merge to an image can be. Similarly, you can the software PHOTO fun STUDIO supplied by Panasonic at the DMC FZ100 in version 5.2 to do this use.

I have tested this also to the visits - if the model is still a brief moment, even that goes very well.


Tip

1 In the meantime I came up with the idea, to photograph in Panorama mode just two columns, Although this is not foreseen. The DMC-FZ100 panorama mode is not made the images, rather, it offers only an alignment aid. This several things will ensure equal automatically:

  1. The images are in a column are all well aligned
  2. The focus and exposure are automatically fixed

In this way it is easy, to assemble a picture of multiple rows and columns of photos, so that the depth of field even smaller and the background is still blurred.

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