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| p.1 #13 · Testing the Pringles tube. |
Unwanted reflections? The whole point of using a snoot is to deliver the light to the object with minimal loss. Black absorbs light, however little in this case, and minimizes the light arriving at the diffusing material. Light bouncing inside a reflective tube won't cause unwanted reflections, it will ensure the light is more evenly distributed and hits the diffusion uniformly, assuming you make account of any strong 'beams' - every snoot (and flash) has it's peculiarities. Crinkling the foil helps.
You want sharper images? The closer you get the diffused light to the object without any loss (or absorption) the sharper they will be. It comes down to the flash pulse duration, and a reflective surface won't slow it down.
Google 'black absorbs light' and you might understand better. But go with black if you believe that is best.
Thanks all, for stopping and commenting.
Harold, I would love to see what Topaz can do - my trial has run out... I'll send you a PM
Paul, I have done that. It's not one of the steps in the "how to" but is mentioned in the video.
Mark - If you keep the tube in it's original state (lined with foil), the light will bounce around inside it, and produce unwanted reflections. That's why you need it to be black, and also why you can't see a whole lot while peering through it. The f/2.8 is incorrect. There is no electronic connection, so the camera is using the settings from my 135 f/2.8 Ai lens.