Digital Dust

Or I’ll be blowed!

Mooching around some of the Canon digital fora out there one recurring complaint seeems to be how much dust the EOS 5D attracts to its viewfinder.

Now while most of my pictures over the years have been snapped on rangefinder 35mm film cameras, with few dust bearing surfaces between subject and film, every SLR I have used has been plagued with the occasional speck of dust or a hair in the viewfinder. The 5D is no different. I suspect the increased use of plastics in modern cameras makes matters worse as they seem to retain static charges more, but when I did get some dust in the 5D’s viewfinder the last thing I was going to do was blow it away.

When the maid vacuums the carpet she does just that – she vacuums. She does not blow. Blowing on dust in your camera seems the exactly wrong thing to do. You are a) Hoping to dislodge it, and b) Praying it magically exits the camera rather than getting embedded or relocated elsewhere inside. Ideally what is called for is something like those suction gadgets dentists use to remove waste water from the patient’s mouth. Until something smart like that comes along – and imagine the liability issues in a country whose residents have long ago ceased taking responsibility for their actions – you can blow (!) your money on one of the Digital Camera Cleaning Kits. For your eighty dollars you get a small bottle of Miracle Solution, probably 2 cents worth of isopropyl alcohol, a 5 cent rubber tipped blower and a Digital Brush. The latter, you should understand, grows on Digital Camels only, hence it’s price.

Me? I’ll continue using the $5 anti-static film cleaning brush I have used for years when scanning film, holding the camera just so to let gravity do its thing with the dust, and I’ll continue to avoid changing lenses in the middle of the Sahara in a sandstorm. I hate to admit it but the dust in my 5D didn’t know any better and exited stage left after I gave it a gentle shove. Oh! yes, and I’ll keep the change.

For some new thoughts on the causes of sensor dust, please click here.