235 Studios
Veteran
HansK said:
Thanks for the link. This light looks cool - it is a cluster of 40 LED's for $55
http://www.ledtronics.com/ds/B640/
235 Studios
Veteran
vidled said:
Sure, sounds good to me, looks like it would be fun to play with. I'll PM you my address.
Brett Erskine
Member
led light
led light
I would recomend you go with a lot more than 40 LED's if your trying to replace anything except those tiny 20w camera lights. Heres what I did and I feel it still isnt enough. If I were to double it up - I would be able to match the light output of maybe a 75w on camera light. That way you nearly never run into a problem of not having enough for exposure.
Brett Erskine
led light
I would recomend you go with a lot more than 40 LED's if your trying to replace anything except those tiny 20w camera lights. Heres what I did and I feel it still isnt enough. If I were to double it up - I would be able to match the light output of maybe a 75w on camera light. That way you nearly never run into a problem of not having enough for exposure.
Brett Erskine
J.R. Hudson
Spirit Animal
x-angel said:
And not draining your battery life down like a Vampire
Here are some interesting ones
http://www.clouddome.com/specs/led.html
brandon_mc
Member
Let's See this Work Once and For All!
Let's See this Work Once and For All!
OK, so I have read through every post of all 21 pages of this thread, and i have heard a lot of big promises about really cool diy on camera led lights, and I have yet to see any of them that are truley what the maker says they are. And if they are the person that built them is still too lazy to put out a detailed schmatic, vendor list, part list, and instructions; even though multiple people have offered to pay for this.
The most successful people it seems in this pursuit so far have been jared and brett, but alas they are still plagued by problems: color temperature, low light output, no dimmable option, power issues.
It seems to me that the best led's, altough they are a few hundred bucks are at:
http://www.lumileds.com/
And the most economical are at:
http://www.ledtronics.com/
Could someone please publish or sell a final set of instructions for this project once and ofr all or simply tell me that it should be put to rest?!
I really would love to have a daylight-balance, dimmable, gel-able, ringlight that i can use both on camera or off on both my dvx or my digital slr. Is this possible?
If not i would settle for a rectangular or circular array of led and maybe scrap the dimming option, but regardless a solution must be practical and usable in a real working situation.
I appreciate all the work that has been put forth by all the led diy-er's so far and hate to be the guy complaining at the end, but I have yet to see practicality in this project.
Instructions and pictures. Most of the pics that were posted previosly in this thread are no longer up.
Thank you so much. Someone tell me that this works!:beer:
Let's See this Work Once and For All!
OK, so I have read through every post of all 21 pages of this thread, and i have heard a lot of big promises about really cool diy on camera led lights, and I have yet to see any of them that are truley what the maker says they are. And if they are the person that built them is still too lazy to put out a detailed schmatic, vendor list, part list, and instructions; even though multiple people have offered to pay for this.
The most successful people it seems in this pursuit so far have been jared and brett, but alas they are still plagued by problems: color temperature, low light output, no dimmable option, power issues.
It seems to me that the best led's, altough they are a few hundred bucks are at:
http://www.lumileds.com/
And the most economical are at:
http://www.ledtronics.com/
Could someone please publish or sell a final set of instructions for this project once and ofr all or simply tell me that it should be put to rest?!
I really would love to have a daylight-balance, dimmable, gel-able, ringlight that i can use both on camera or off on both my dvx or my digital slr. Is this possible?
If not i would settle for a rectangular or circular array of led and maybe scrap the dimming option, but regardless a solution must be practical and usable in a real working situation.
I appreciate all the work that has been put forth by all the led diy-er's so far and hate to be the guy complaining at the end, but I have yet to see practicality in this project.
Instructions and pictures. Most of the pics that were posted previosly in this thread are no longer up.
Thank you so much. Someone tell me that this works!:beer:
There was a great story on LED lights on PBS's Newshour last night (11/10/05).
The story went into scientific detail about the manufacture of the LED's and interviewed a couple of the leading companies and scientists. Very interesting.
For practical applications, it was mostly about architectural use. Apparently, it's most difficult to produce a white LED and LED's that are bigger than pea sized. It's coming though ...
The story went into scientific detail about the manufacture of the LED's and interviewed a couple of the leading companies and scientists. Very interesting.
For practical applications, it was mostly about architectural use. Apparently, it's most difficult to produce a white LED and LED's that are bigger than pea sized. It's coming though ...
LED Ring Light
LED Ring Light
I have a prototype of a ringlight complete and I am now in the process of refining the mechanical design and fine tuning the electronics.
The light is dimmable and powered by a battery pack that can be worn on a belt or velcroed to something.
The light uses 66 LEDS and is housed in a CNC machined housing.
The light is designed to fit on a DVX camera but it will fit most cameras with appropriate adapter rings.
Unfortunately I do not have permission to post a pictures to this forum, but I will set up a Web Page in the next few days so that you can at least see what it looks like.
Warren
LED Ring Light
I have a prototype of a ringlight complete and I am now in the process of refining the mechanical design and fine tuning the electronics.
The light is dimmable and powered by a battery pack that can be worn on a belt or velcroed to something.
The light uses 66 LEDS and is housed in a CNC machined housing.
The light is designed to fit on a DVX camera but it will fit most cameras with appropriate adapter rings.
Unfortunately I do not have permission to post a pictures to this forum, but I will set up a Web Page in the next few days so that you can at least see what it looks like.
Warren
brandon_mc
Member
That would be awesome warren. I'm very much looking to checking it out. Any chance that it could be powered by an on camera battery or the camera itself?
Like yourself I wanted something that can be used on the DVX, SLR and another video camera that I have. These cameras all run on different voltages and are not easy to interface to the ringlight.
For me I found that having a dedicated battery pack was more effective as the light could be used all the above equipment and any almost any other camera.
Warren.
For me I found that having a dedicated battery pack was more effective as the light could be used all the above equipment and any almost any other camera.
Warren.
brandon_mc
Member
That makes sense. Let me know as soon as you have something. Are you building it for the purpose of selling them? If so what price are you aiming for?
Norm Sanders
Script Wrangler
Warren, what do you mean you don't have permission to post pics on here? Sure you do ... just go "advanced" in your posting settings, then click on the "insert image" icon you'll see on the second row (bottom row) of icons.
From there, just type in the address you have for the pic on your server, and it'll post directly into the thread! :thumbsup:
That, or just throw the pics into any folder & give us the address. Love to see what you have!
From there, just type in the address you have for the pic on your server, and it'll post directly into the thread! :thumbsup:
That, or just throw the pics into any folder & give us the address. Love to see what you have!
twocik23
Veteran
HELP!!!!
I bought a Sony NP-FM50 charger (to use with a sony NP-FM50 battery). I ripped the back off of the charger and wired all the leds on the pc board. Then I stuck the battery in the charger and the leds flashed for a split of a sec. and that's it. I checked to see if the leds where fried (there OK) its just the battery. It seems like it has a fuse or something inside. Is the dvx battery and charger different in some way besides the brand then the Sonys.
Any suggestions????
I bought a Sony NP-FM50 charger (to use with a sony NP-FM50 battery). I ripped the back off of the charger and wired all the leds on the pc board. Then I stuck the battery in the charger and the leds flashed for a split of a sec. and that's it. I checked to see if the leds where fried (there OK) its just the battery. It seems like it has a fuse or something inside. Is the dvx battery and charger different in some way besides the brand then the Sonys.
Any suggestions????
twocik23
Veteran
ENGR:
Do u have current limiting resistors in series for your LEDs?? U must not connect the LEDs directly to the battery,they will fry almost immediately.
I'm not an electrician and this is my first soldering job. So its kind of messy.
http://homepage.mac.com/twocik23/PhotoAlbum19.html
If the leds maximum voltage is 3.5v for every single one and if they are soldered in 2 rows of 3 leds in a chain & 6 rows of 4 leds in a chain, does that mean that I need a power supply of 105volts. Because I wired them in 4 & 3 instead of twos. Is that why its popping?
30 leds x 3.5volts = 105volts
Do u have current limiting resistors in series for your LEDs?? U must not connect the LEDs directly to the battery,they will fry almost immediately.
I'm not an electrician and this is my first soldering job. So its kind of messy.
http://homepage.mac.com/twocik23/PhotoAlbum19.html
If the leds maximum voltage is 3.5v for every single one and if they are soldered in 2 rows of 3 leds in a chain & 6 rows of 4 leds in a chain, does that mean that I need a power supply of 105volts. Because I wired them in 4 & 3 instead of twos. Is that why its popping?
30 leds x 3.5volts = 105volts