Converting a Transilluminator into a Short Wave Lamp
This article was originally published by Dennis Michael on Nature's Rainbow. My small hand-held short wave lamp is useful, but has its limitations. I was interested in a much more powerful light for display and photography. After some research and talking to...
Long Wave Filters are Now More Expensive: #400 LW Filter Glass is no Longer Made
This an old short article originally posted around 2016. Also available on UV SYSTEMS website: https://www.uvsystems.com/blogs/news/long-wave-filters-are-now-more-expensive-400-lw-filter-glass-is-no-longer-made By Don Newsome; UV SYSTEMS, Inc. Kokomo Opalescent Glass...
Black Display Boxes for Flats
Ever want to store your glow rocks in boxes, but don't want to pay for flats? Do what I do - collect copy paper boxes at your place of business. Put the bottom of the box into the lid, then trace around it with a pencil. Use a carpet knife and yardstick to cut along...