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History of (d)SLR

The year was 1975 when I was browsing small dusty workshop located next to the garage within our house backyard. It was perfect combination, I was about to turn 7 years old, eager to explore the darkest corner of my childhood realm and the dark workshop was the most mysterious chamber in our entire family estate, no bigger than four cubic meters occupied with heavy and old greenish oak cabinet with couple of drawers and compartments filled with tons of different tools, mechanical devices and various interesting stuff I didn't know their origin and purpose. It was, more or less, the year when I started to break things in order to find out what was inside or to find how something works, foolishly believing that I would be perfectly able to put things together back. Well, from this point of view in time, I can't remember if there was at least one mechanical device I "inspected" in such manner that I successfully restored after unscrewing all the bolts and junctures

Analglyph 3D Images - Homemade recipe

3D is not the new technology, the old red-blue anaglyph technology is with us for many years and currently being replaced by new not-so-head-blowing technology in polarized lighting, glasses free parallax barrier and lenticular displays. I am not a big fan of 3d movies, simply because my eyes and head requires day(s) to recover after it, but 3D photos are very much usefull and I enjoyed them very much in everyday surfing the net (I always have a pair of glasses, usually came with some kids magazines). NASA's  recent Mars robotic exploration has tons of galleries of 3D images that really help understanding the scenery much better. Years ago I learned to create these photos and first instruction I found was at NASA Jet Propulsion Laboratory:  https://mars.nasa.gov/mars3d/3DImages.cfm 3D photo created from two images, angled with a couple of centimeters The only downside is you have to take two images very quickly, especially when taking photos of children or any moving ob