That is what a friend called it when The Online Photographer blog referred its readers to the site of a photographer on the West coast who was making tondi (art speak for round, also sometimes called tondo) images that were similar in flavor to some work I had been doing (see my "Ways of Working " post on Nov. 7th). Now I encounter another example in the Newsletter of the Photographer's Formulary. This involves another 'thread' of work I have played with but haven't shown anyone previously, photos of car details (hood ornaments, radiator emblems, rear view mirrors, etc.) like the one above. Mostly it is old cars, they're so much more visually interesting than the new ones, but I have shot a number of new car details, mostly headlight and taillight images. The compound faceting of the reflectors and lenses is very abstract and interesting.
Convergence of ingenuity is when two or more people independently have the same or very similar idea at the same time. With all the people taking digital photos these days I'm sure it is happening a lot in photography.