Do Compact Fluorescents contain Mercury?

Fluorescent 2 Comments »

Hi there,
Do compact fluorescents contain mercury? How do I dispose of them safely?
Your reply would be greatly appreciated
Kind regards,
Merve

Remove the flicker from these CF lamps

Fluorescent 1 Comment »

I have found a problem with the CF lamps and the digital scanning back I am using so I thought to ask your advice first.

The CF lights are producing a repeated (raster) pattern of very pale thin lines parallel to the scan direction (I only noticed them when processing delicate artwork like drawings – they’re there but not so noticeable with high contrast paintings).

I did some searching on the web and it seems that there is an interaction between the high frequency of the CF and the digital scanning back. So I was wondering if you know of any way (electronically, etc.) to remove the flicker from these CF lamps? Is there a special power supply one can use?