If you need optical power from an LED, we did some work with the Godox 150 last year.
https://www.photomacrography.net/forum/ ... =Godox+LED
Or higher power LED COBs.
https://www.photomacrography.net/forum/ ... D&start=45
Anyway, think there are many options available, and here's a couple more.
Best,
My setup - need some lighting advice
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Re: My setup - need some lighting advice
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Re: My setup - need some lighting advice
Someone in the forum linked to these DIY Bauersfeld light domes recently: https://journals.plos.org/plosone/artic ... ne.0153426
"A Scalable and Modular Dome Illumination System for Scientific Microphotography on a Budget."
"A Scalable and Modular Dome Illumination System for Scientific Microphotography on a Budget."
Re: My setup - need some lighting advice
Well, I modified the USB Jansjo lights today. Instead of ordering a set of COB leds I purchased a set of 5 penlights which use a Cree XP-E R3 chip. I was able to unscrew the top of the penlight containing the led, reflector, lens, and heat sink. Basically everything above the batteries. I then desoldered the LED board in the Jansjo and soldered in the top of the penlight. It fit down inside the top of the Jansjo and I then used electrical tape to hold it in tight.
I tried using the USB power supply I had but it obviously allowed too much current to flow as it started smoking. So I have soldered wires to the USB plug and am now using my power supply which can limit amps. This gives about 200 lumens per light if I set it at about 1 amp and it stays cool enough to be ok in the Jansjo plastic head.
Not bad for a $24 investment and I still have two more flashlights to play with.
Ichthyophthirius - thank you for that article. That could be interesting to build. I was actually thinking of buying more penlights and building the reverse of that. I.e. a platform with 3-5 penlight heads mounted on it pointing toward a diffuser such as the ping pong ball. Each lamp would be on a small swivel. That way I would not have all of the goosenecks all over the place. And the light sources would move up and down with my stage to maintain consistent lighting.
Who knows, I might build one of each.
I tried using the USB power supply I had but it obviously allowed too much current to flow as it started smoking. So I have soldered wires to the USB plug and am now using my power supply which can limit amps. This gives about 200 lumens per light if I set it at about 1 amp and it stays cool enough to be ok in the Jansjo plastic head.
Not bad for a $24 investment and I still have two more flashlights to play with.
Ichthyophthirius - thank you for that article. That could be interesting to build. I was actually thinking of buying more penlights and building the reverse of that. I.e. a platform with 3-5 penlight heads mounted on it pointing toward a diffuser such as the ping pong ball. Each lamp would be on a small swivel. That way I would not have all of the goosenecks all over the place. And the light sources would move up and down with my stage to maintain consistent lighting.
Who knows, I might build one of each.
Re: My setup - need some lighting advice
Okay, here are some pics of the modified Jansjo lights in action. Running them at about 2 amps with the three lights wired in parallel (the picture shows 1.2 amps because that was my first run through). As you can see on the monitor and the stacked picture the lighting level and color are much better.
This image was produced with a stack of 47 pictures run through Helicon.
This image was produced with a stack of 47 pictures run through Helicon.