hey Kino (any relation to Kino Flo? :O)) ),
I heard of Kleig Eye...it is an inflammation of cornea or a small burnt hole in the retina caused by looking at very intense light source... I suffered " Kleig eye" myself from observing the Sun Eclipse in London years ago with insufficiently strong sun protection filter! My trouble is I have to shoot in an incredibly small space while the Technicolor film set guys shot in a studio had the ceiling height and size of a small aircraft hanger. Carbon arc went out of fashion quickly, it was quite possible that actors/actress worked in much better conditions with popularity and advancement of tungsten spots from 1940s.
Tungsten bulb converts electrical power into about 70% radiation in the infra red wavelength and the rest into visible light spectrum. It is not energy efficient (except Dedo). HMI light is the opposite, converting most energy into visible light spectrum similar to sun light. I used to own an old Strand 575W HMI fresnel running on magnet ballast (which weighted a ton). It is much less hot and brighter than a 1KW quartz junior. But its light flickers and rich in UV. You can get kleig eye by staring at the HMI light directly. I didn't like to use old HMI light because you have to handle it with great care or it could kill you during a strike if there is a short with the EHT, so I got rid of it in the end. Obviously the modern HMI fresnels running on electronic ballasts are great but very few people can afford one.
Last edited by singlo; 04-24-2007 at 08:33 PM. Click to view previous post history.