Exposure time 1/15 sec.

Holographic art in Pulheim Town Hall

Submitted by Jürgen Tenckhoff on Fri, 09/25/2020 - 18:37

At the end of the 1990s, the Holography Museum was closed by Matthias Lauk and its approximately 350 exhibits were looking for new owners. In order to be able to assess holographic art, the view must not be obscured by 3D animations, stereoscopic images or simulated pseudo-3D effects with red-green orthogonal glasses. Otherwise the careless assessment of the ignorant takes place too quickly, one is on the level of souvenir articles.


Photo technique: "Color-key"

Submitted by Jürgen Tenckhoff on Mon, 07/20/2020 - 17:09

In color-key shots, an object of the photo composition is highlighted by making it appear in the original color, while the rest of the image is only shown in shades of gray or black and white. There are several ways to achieve this effect. You can work very precisely with the clipping tools and the layering technology of the photo editing programs Photoshop (Adobe) and Gimp (OpenSource). There are many tutorials that explain the sometimes very complex work steps involved in these programs.