I was at Costco (USA warehouse store) yesterday and couldn’t help but notice the Sunray LED light panel for only $25. 12X48", adjustable brightness. To my eyes it looked VERY evenly illuminated.
Does anyone have experience with these?? Sunray ultra thin LED light panel 3CCT white | Artika
Peter
BPEC
Hello Peter,
Give it a try! Let us know the results!
I use a similar thingy… It is an art plastic diffuser-white… over the objective end of the OTA or DSLR lens. I usually use natural sky light as the light source but sometimes use several LED bulb sources to illuminate the panel uniformly and the diffuser does the rest. I have an illuminance light meter which helps getting the panel uniformly illuminated when using LED light sources. Amazon has many illuminance (lux) meters that should work–search “illuminance light meter”. I think my LEDs are 5000K bulbs btw, “Daylight”.
I would not use a fabric diffuser or white T-shirt.
Jim (DEY)
p.s.
The one shown is translucent so you can see things thru it. This is not what I am using and not what you would want. You want a white diffuser sheet–passes light but you can’t see anything thru it. I found a round here, various sizes up to 8-inch diameter. It must pass only diffuse light.
Jim,
I think you mean that you don’t want a transparent panel (you can see objects through it). You do want a translucent panel (transmits light, but you can’t see objects through it). I use a translucent panel of white acrylic material.
Peter, one thing to watch is sometimes these things use pulse-width modulation for dimming or a row-by-row power system. So you will get a raster pattern or rolling bars or unlit sections on the image that forms on the sensor. Try very short exposures with your camera, eg <1/100s, to see if there is a problem.
Let us know what you find.
Colin
HC0A
Colin,
Next time I’m at Costco I’ll image it at 1/1000 and see what it looks like. If good, I’ll buy one!