spray duster (can of air)

[cosmicma]

Originally Posted by chris-p

What cans do you use? We have them all over the place at work and they literally chuck out propellant almost as much as they do air. If I get time, I'll video one and upload it so you can see.
We were hoping to use them on our flow cytometer but we were worried about the volume of propellant coming out so we measured it. From one can (a 400ml) one, we collected over 150ml of liquid propellant, and that was with the can in an upright position.

this stuff

http://www.office365.co.uk/Computer-...per-Duster.htm

[nikonian]

http://cdn.mos.photoradar.com/files/...ian/blower.jpg
This is what I use , it`s a blower/sucker . Susk the bits out or blow `em out. If I use the blower I cover the input with some light cloth to act as a filter.

[nikonian]

http://www.photoradar.com/sites/all/...es/transpx.gif

Where did I go wrong ?

[KeithT]

Never let them near my cameras to be honest - inside or out side. The most I use is a Giotto Rocket Blower.

Mind you, they are useful for getting biscuit crumbs out of keyboards...

[nikonian]

http://cdn.mos.photoradar.com/files/...ian/blower.jpg

[nikonian]

http://cdn.mos.photoradar.com/files/...ian/blower.jpg

That looks better

[chris-p]

Originally Posted by cosmicma

this stuff

http://www.office365.co.uk/Computer-...per-Duster.htm

Well there you go. Dunno what the propellant is in this one specifically but they could certainly be different.

I tested one of the ones in my lab today and it's awful. If you hold the button down so it's spraying you get large visible lumps of freezing cold propellant every 5 or 6 seconds.

I suppose it's personal preference but I would stick with my Giottos rocket blower and a sensor pen. It's quick, easy and it works.

[KeithT]

Amen to the Sensor Pen and the Rocket Blower that Chris mentions. They are all I have ever used with my 5d, and will do so with the MKII if necessary. They are both amazingly simple to use and inexpensive to buy.

[cosmicma]

@chris-p

you wouldn't catch me putting any kind of compressed air aerosol near the insides of my camera like i said the last can i used was for freezing a wheel bearing ( whilst heating the hub up ) to get the thing to go in

i have to say i wasn't so gentle getting the old wheel bearing out

[Fabienne]

I have used spray air for years and never had a problem. I use Kenair (don't know if i am aloud to mention brands if i'm not then i am very sorry! I'm new here!). I just give it a quick few sprays before pointing at anything, hold the can completely upright and spray at a distance of no less than about 15 cm. This means that the air pressure is not too strong and the temperature is not too cold. I have always used it on the Hasselblad and Canons and its always worked perfectly, although i think you do have to be careful when doing it!!