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jk
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LED lights seem like an obvious way to go but do they have enough power even when in banks of LEDs.
Does anyone have any experience of using these?
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Doug
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link
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jk
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Thanks Doug.
Very good article.
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richw
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Thanks, JK, Doug, I now have another book to add to my list!
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Doug
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jk wrote:
Thanks Doug.
Very good article.
Yes, we should repost some of these better finds in blog form - might help to get the numbers up
btw, what about an iOS/Android forum with sub headings of tablet/phone photography tools and techniques along with other mobile stuff
For example, I wanted to mention the quite amazing Instant Heart Rate app, but other than off topic didn't know where to post
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jk
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Doug wrote:btw, what about an iOS/Android forum with sub headings of tablet/phone photography tools and techniques along with other mobile stuff
For example, I wanted to mention the quite amazing [url=http://itunes.apple.com/us/app/instant-heart-rate-by-azumio/id395042892?mt=8]Instant Heart Rate{/url] app, but other than off topic didn't know where to post
Put it in the Everything Else section.
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Iain
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jk wrote: LED lights seem like an obvious way to go but do they have enough power even when in banks of LEDs. Does anyone have any experience of using these? I bought a cheap one from the 7 day shop some time ago and was surprised how good it turned out to be and have used it quite a bit.
http://www.7dayshop.com/catalog/product_info.php?cPath=777_1&products_id=109451
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Ray Ninness
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I have flirted with grabbing one of those as a shadow filler, but just haven't found the one I want yet???
:waiting:
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amazing50
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Had good results with an LED ring light. It is switched on rather than flashing and runs on AA cells. I did some video of a band that had powerful multi color LED's. They introduced flicker into some of the shots, which was a pain to remove later. The flicker comes from the controllers that run on AC power. The battery powered portable video lights do not have this problem.
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Constable
| Joined: | Fri Apr 6th, 2012 |
| Location: | |
| Posts: | 224 |
| Status: |
Offline
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I'm using a Manfrotto unit with 36 LEDs and a dimmer and camera mount.
it is Ok for fill lighting BUT (and this is a big but) you need to remember that it is not really white light. The spectrum is very different to sunlight. The colour temperature is all over the shop (no problem if you shoot RAW in principle). In practice, it is a problem because the colour temperature is hard to match because the spectrum shape is rather different to anything we are usually used to. In other words ... take care, colours may not be true.
For those who care about such things, the CIE chromaticity values are typically x = 0.27-0.3, y = 0.23 -0.28
Ed
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jk
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Constable wrote:
I'm using a Manfrotto unit with 36 LEDs and a dimmer and camera mount.
it is Ok for fill lighting BUT (and this is a big but) you need to remember that it is not really white light. The spectrum is very different to sunlight. The colour temperature is all over the shop (no problem if you shoot RAW in principle). In practice, it is a problem because the colour temperature is hard to match because the spectrum shape is rather different to anything we are usually used to. In other words ... take care, colours may not be true.
For those who care about such things, the CIE chromaticity values are typically x = 0.27-0.3, y = 0.23 -0.28
Ed
Useful to know so a bit bluey/purpley!
Are the fluctuations due to small voltage varitions or just between the different LEDs in the array?
Can it be corrected with a gel ?
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Eric
| Joined: | Thu Apr 19th, 2012 |
| Location: | United Kingdom |
| Posts: | 4428 |
| Status: |
Offline
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jk wrote: Constable wrote:
I'm using a Manfrotto unit with 36 LEDs and a dimmer and camera mount.
it is Ok for fill lighting BUT (and this is a big but) you need to remember that it is not really white light. The spectrum is very different to sunlight. The colour temperature is all over the shop (no problem if you shoot RAW in principle). In practice, it is a problem because the colour temperature is hard to match because the spectrum shape is rather different to anything we are usually used to. In other words ... take care, colours may not be true.
For those who care about such things, the CIE chromaticity values are typically x = 0.27-0.3, y = 0.23 -0.28
Ed
Useful to know so a bit bluey/purpley!
Are the fluctuations due to small voltage varitions or just between the different LEDs in the array?
Can it be corrected with a gel ?
Its the reduced CO2 in them! 
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