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Foreword
My pictures should inspire people by colors and forms and show the beauty of animals and plants that are worth protecting.
This is not an instruction for use.
My illustrations are indications and impulses. They should support one’s own experience and creativity.
This guideline will show you a photographic technique in the reproduction scale from 1:1 to 100:1.
The size of the object that’s being illustrated will be the same size (1:1) or portrayed up to 100 times bigger (100:1). The size of the photosensitive chip doesn’t have any influence on my statement to the reproduction scale.
The viewer should be able to look at the picture (and around in it), the concentration on a specific point should be avoided.
The “golden cut” can be used as a creative element – or left out intentionally.
From 1:1 up to 10:1 the depth of field is very little. Usually this depth of field, and the out of focus area that comes along with the objective that has a nice bokeh, has an intentionally creative factor.
The area from 1:1 to 10:1 includes objects we can see with the naked eye, with or without an additional magnifying glass and consequently we know it. The detail often stays hidden. The area of the depth of field of the magnifying glass is so little, that we often can’t see the object sharp in its full size. We need to change constantly the watching distance with our magnifying glass and thus, we can obtain a picture of the object. If we increase the magnification, this effect will be even more pronounced with three-dimensional objects. With the microscope the area of focus has to be changed constantly, to get a full picture of the object.
From 10:1 till 100:1 the depth of field (at the diffraction limit) is very little, so that the transition from sharp to blur is very abrupt and therefore one can’t really talk about a creative effect. it’s about “colors and forms” and the area one can’t see sharply with the naked eye in its full size.
The requirements to the mechanical and optical equipment are to a great extent equivalent to equipment for amateurs or semiprofessionals and can be bought in a specialist shop for photography.
Thanks to the digital technique of photography one can increase the depth of field with computer software.
Multiple shots of the area of focus can be put together to create one picture with full sharpness (Focus Stacking, Deep Focus Fusion or expansion of depth of field).
Every year, I have been exposing approximately 30'000 shots with the Nikon D300 and D7000. Out of that I got 700 stacks, whereof 200 stacks I could use. A variety of 200 stacks of the last years you can see on this WebSite.
The resulting pictures are sharp throughout the whole area, which differs from most pictures shown, where stacking was not performed.
It will be a matter of individual taste of each viewer, if these very sharp pictures are attractive. I am absolutely aware, that these pictures might not be delightful for all viewers.
Kurt Wirz
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