Dr. Flash asks: What are compensating phosphors? Not the definition but
describe the physical hardware.
Dr. Flash
On 1/5/2015 7:13 PM, Mike Gordon via olympus wrote:
Dr. No Flash fan writes:
<<I am likely no never buy another flash, but will transition
<<to LED panels instead.
tungsten on left, "white" LED with compensating phoshors on right.
http://www.screenlightandgrip.com/images/generators/LED_Model_Comp.jpg
Loss of cyan balls up the dress rendition.
http://www.screenlightandgrip.com/images/generators/LED_Effect_on_Skin_Color.jpg
Skin renditon upset by steep drop off in long wavelength light---if the
color is not in the light it can't be reflected at all. This can make
it very difficult to fix in post even shooting a target.
I don't know how long it takes the phosphor light to decay but suspect
dramatically longer than usual strobe thus no help stopping motion
for macro flash with critters. If using continuous LED light though, no
worry about sych speed and can bump up shutter speed to a degree.
Bottom line--unless the phoshors have improved (perhaps they have) not
sold on LED. Suspect the manufacturers just might be spinning the
data on the LED panels. I bet Tim knows the scoop on this.
Student of Dr. Flash, Mike
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