On: Wed, 18 Aug 2004 Mark Sykes wrote:- > A while ago I seem to recall someone asking about the advisability of using > supposedly 'propellant free' compressed CO2 blowers for cleaning camera > sensors. I purchased one of these on the advice of my local dealer. The item > is marketed in the UK under the Kaiser brand name and consists of a black > plastic holder for a small gas cartridge with a finger trigger and small > plastic tube to direct the jet. > Before using it inside the Canon 1Ds I decided to blow any stray dust off > the rear of my lenses. A gentle blast onto the rear element of my 24-70 > produced a grey fog of the non-existent propellant all over the glass which > took 10 minutes to remove with a micro-fibre lens cloth. Had I used this > down the lens throat I suspect I would be facing an expensive repair job. > You have been warned...
Use a much bigger can, keep it warm (not hot!) and don't tilt it. I use a big can of Jessops CLEAN-AIR which sits on my lightbox, keeping warm prior to blasting off negs for scanning. Never lost a neg yet. William Curwen =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
