I would like to shoot short close up video clips and thought that I may be able to make a LED ring light runs on batteries and contans around 40 LEDs. Problem is that I am ignorant of how to design a LED circuit. Are there any curcits that I can buy or easily build that would allow me to build my light?
LED ring light for camera
- Thread starter kayos
- Start date
IlluminatingBikr
Flashlight Enthusiast
- Joined
- Feb 26, 2003
- Messages
- 2,320
Kayos,
Welcome to CPF!
I was at the gum specialist's office yesterday, and got a picture of my gums taken. The picture was for the insurance company, because we are trying to get them to cover all/part of the cost of a gum graph I will be getting in January.
They had a Canon digital camera which they used to take the picture. I believe it was the A75, but didn't get a good look at it. Well anyways, they held it up close to the area where I need the graph, and took a picture. They had a ring around the lense of the camera, with probably about a dozen 5mm LEDs around it, that were on the whole time. I'm pretty sure they ran off of the camera's battery, rather than some external source.
I have a feeling that if a normal doctor's office has one of these, that they are probably being sold by a company. Perhaps you could try and aquire one, rather than having to make it.
Just thought I would share my personal experience with you.
Welcome to CPF!
I was at the gum specialist's office yesterday, and got a picture of my gums taken. The picture was for the insurance company, because we are trying to get them to cover all/part of the cost of a gum graph I will be getting in January.
They had a Canon digital camera which they used to take the picture. I believe it was the A75, but didn't get a good look at it. Well anyways, they held it up close to the area where I need the graph, and took a picture. They had a ring around the lense of the camera, with probably about a dozen 5mm LEDs around it, that were on the whole time. I'm pretty sure they ran off of the camera's battery, rather than some external source.
I have a feeling that if a normal doctor's office has one of these, that they are probably being sold by a company. Perhaps you could try and aquire one, rather than having to make it.
Just thought I would share my personal experience with you.
Negeltu
Enlightened
I made my own 5mm led macro light ring. I used some velcro strips. Unfortunately, I didn't get good results. It just wasn't bright enough for my purposes...so I took it apart and used the leds for something else.
reefphilic
Enlightened
I was searching for LED ring light a few months ago.
Most places want a few hundred dollars for a bunch of 5mm LEDs and a pcb assembled.
With the Luxeon LED, you might be able to built one with say 3LEDs. Save you the trouble of the wiring up all the 5mm LEDs.
Most places want a few hundred dollars for a bunch of 5mm LEDs and a pcb assembled.
With the Luxeon LED, you might be able to built one with say 3LEDs. Save you the trouble of the wiring up all the 5mm LEDs.
markus_i
Enlightened
If you want to go for serious illumination, you might consider the Luxeon rings. But prepare for serious $.
Bye
Markus
Bye
Markus
Negeltu
Enlightened
My next try is going to be with luxeons. The 5mm just didn't put out enough light for my camera.
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PhotonWrangler
Flashaholic
greenLED
Flashaholic
If you're going to build a LED ring light for your camera, make sure you use a diffuser for it. Otherwise, you will get uneven lighting on whatever you're shoothing. This might be worse if you'll me doing macro photography.
The LS-rings might be too bright.
The LS-rings might be too bright.
LED-FX
Enlightened
Leave long leads on the LEDs the you can focus them on the point of interest.
Get some perf board , radio shack, some LEDs possibly banner Ad here, presume white use this to find your resitor value, if your using 12V for instance wire 3 LEDs in series then use a 150 Ohm resistor:
http://linear1.org/ckts/led.php
Bit of hacksawing or use couple of hole saws to make the ring.
Solder LEDS to board , illuminate object, post some pics back ;-)
Adam
Get some perf board , radio shack, some LEDs possibly banner Ad here, presume white use this to find your resitor value, if your using 12V for instance wire 3 LEDs in series then use a 150 Ohm resistor:
http://linear1.org/ckts/led.php
Bit of hacksawing or use couple of hole saws to make the ring.
Solder LEDS to board , illuminate object, post some pics back ;-)
Adam
radellaf
Flashlight Enthusiast
Digi-Slave makes one with 24 5mm LEDs, $150, and inexplicably powered by a 9V battery.
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=305937&is=REG
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=305937&is=REG
Thanks for all the replys. I contacted Digi-Slave and was told that they will be coming out with a more powerful LED ring flash in a month or so. I think I will wait for that rather than going through the hassle of wiring something up myself.
