NICK STROBEL: Safe viewing key to upcoming solar eclipse
Other things to not use (they are not safe) include: smoked glass, stacked sunglasses, crossed polarizing shades, photographic neutral-density filters or a filter designed to block visible light for infrared pictures. The items in the previous sentence …
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Nanotube Field Emitters Beat OLEDs
PORTLAND, Ore. — A lighting panel powered by carbon nanotube field emitters stimulating a phosphor to glow will be less expensive than light-emitting diode (LED) lighting and brighter than organic light emitting diode (OLED) panels, according to Prof.
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Pocketful of Miracles
Another addition to the RX100 III is a built-in neutral density filter, which gives the camera a bit more flexibility in its manual exposure modes (you can't use it in Auto or scene modes). It's a handy tool for using slower shutter speeds without …
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