Digital BW, The Print

Hi Paul:

There also exist LED flood lights and LED MR16's, but I haven't used  
either.

Buylighting.com has a number of them.

and here is another page full of them:
http://www.besthomeledlighting.com/led_floodlight

I'd be interested in hearing what others have to say about them. They  
tend to be very cool, but they may be cool enough to be filtered with  
a gel.

All the best,

Andrew


On Dec 27, 2008, at 11:46 AM, pr_roark wrote:

> Gene wrote:
>
> > They are only the fluorescent tubes that are
> > labeled Natural Sunshine. ...
> >
> > The CRI are not known or shown on the CF bulbs.
>
> To qualify for the "Energy Saver" (I think) label the CRI must be at
> least 80, I'm told.
>
> >... I have installed the 5000� K tubes ...
>
> There is an interesting relationship between light levels and color
> temperature that is often expressed by a curve called the "Kruithof
> Curve." As the light level becomes lower, we see warmer light as
> neutral. A higher temperature light will be seen as cool.
> See http://en.wikipedia.org/wiki/Kruithof_curve
>
> ...
> > The usual option for galleries is halogen bulbs
> > that are around 3800�K.
>
> Halogens are becoming too ineffient to be used. We're going to
> replace ours with the best CF floods or spots we can find. There are
> a few that advertise rather high CRIs, and, frankly, the artists in
> Gallery Los Olivos seem to be happy with even the Home Depot (est.
> cri = 82) samples I've installed for testing.
>
> One advantage of the CF flood is that they come in varying color
> temperatures. Because we'll have multiple floods per area, the
> artists will be able to control their own color temperature by
> swapping out, for example, some cool ones for some warm ones.
>
> Paul
> www.PaulRoark.com
>
>
> 

---------------------------------------------------
Andrew Darlow
Editor, The Imaging Buffet
http://www.imagingbuffet.com
Author, 301 Inkjet Tips and Techniques:
An Essential Printing Resource for Photographers - http:// 
www.inkjettips.com




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