Archived posting to the Leica Users Group, 1998/02/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]John McLeod wrote: >Dear Doctors of Leica - >I have had a custom made 19"x25" lightbox for the past few years (5000 Kelvin >rating) with 2 fluorescent tubes and a (non-electronic) ballast/transformer >inside the box. When I use this thing for more than about 10 minutes I begin >to experience a headache and nausea (no, it's not from the poor quality of my >slides). I think the problem is either the flickering of the tubes (60 Hz) or >the ELF radiation from the transformer, but I'm not sure which it is. Hopefully one of the actual eye doctors will respond: I would wonder if the adjustable diopter of your loupe is set wrong or perhaps if you need to get your eyes or glasses re-checked for near focus. About the time I need an updated prescription, I get headaches from staring at the light table as well as shooting. (My tennis game slips too) The other tip is to keep both eyes open while you are looking through the loupe, (as well as a camera) to reduce eye strain. On the other hand I suppose you could try to move the transformer farther away or put a piece of sheet metal over it to help block some of the EMF. You wouldn't per chance be living on a boat???? In which case I recommend Dramamine and Tylenol ; - ) Duane