@Patrik, I photographed them all with diffusers, but they were still a little darker at the edges, especially that solo 1W LED! I think LEDs are a great choice in general, but I think like this or this, might work better which are boxes designed to make "optical flats" for lens corrections in astrophotography. For those not interested in the link, they basically take four leds or so and blast them into a white box, and then diffuse the output with some kind of translucent perspex. This kind of bright lighting is perfect for taking pictures of plates, but it might be a pain to store if you don't have a lot of room, or if you want to keep a lot of gel boxes around, so I am going with EL panels for my design the moment.
At the lab we call the diffused setup a "bucket of light" because we literally make the diffuser out of one of those big plastic buckets. It makes it WAY easier to take pictures of teeny colonies!
On Sun, Aug 4, 2013 at 4:47 AM, Patrik D'haeseleer <patrikd@gmail.com> wrote:
Wow, $3.45 is a damn nice price for that iPhone backlight! Is that just LEDs with a diffuser?
Avery - all the LED options you tried will look 100% better with a decent diffuser as well. Here's some option in Inventables - there's probably cheaper sources to be found too:
https://www.inventables.com/categories/electrical-lighting/light-diffusers
Patrik
On Saturday, August 3, 2013 10:57:16 AM UTC-7, Simon Field wrote:You might try one of these instead of the cellphone:Without the LCD and polarizer in the way, it should be much brighter.And for three and a half bucks, the price is right.Nice and thin, even illumination. Use a blue gel filter if you really need just blue light.On Sat, Aug 3, 2013 at 8:44 AM, Avery louie <inact...@gmail.com> wrote:--As you guys probably know, I have been working on a super low cost gel system. As part of my research on the box, I tested as many types of gel illumination as I could afford. Among the tech used were:
1W blue led
8x8 rgb led matrix
12 v blue led strip (intended for cars)
3x4 blue led matrix
4x4 electroluminescent Panel
Cell phone screen (samsumg Galaxy note ii)
Computer screen (dell e6410)
2x regular (through hole) LEDs.
I have written up my findings and comparisons on my blog, here. I is quite image heavy.
-sent from my transluminator
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