Hi to everyone!
Recently I have ordered stuff to start microphotography. And the hardest part to me was to choose the continuous illumination. I did not want to order IKEA lighters and was looking for ring light. But all I had found was with big inner diameter (50mm min). Finally had trapped to the following page:
https://www.seiwaeurope.com/product/ill ... ring-light
After contacting sales managers for additional information, I got the following catalogue with dimensions and brief additional information:
http://kkimac.web-books.jp/2018en/_SWF_Window.html
Today have found 2 more companies with the same/similar products:
http://moritex.com/products/mv/Illumination/index.html - Japanese
http://www.contrastech.com/list/?52_2.html – Chinese
All of them have ring lights with inner diameter 35-36 mm and with diodes/diffusers rounded or placed at an angel, that will light the model’s surface in front of the objective.
Currently I am contacting these companies regarding power supply of these lights and price.
Leaving this information here just for case if it can be useful to someone)
Round led light
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I've had good luck with the Angel Eyes COB ringlights. The smallest I've seen is 40mm OD, 31mm ID. I use them for my stitching work and general coin photography as they are easy to integrate into various mechanics. Plus, they are pretty cheap. Unfortunately, their "white" is very cool / high color temp. It's not difficult to correct with WB, but they won't win any CRI awards.