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- Neil
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http://farm4.static.flickr.com/3463/3937995288_cb89a9988e_b.jpg
i'll be giving the 20D a clean tomorrow then..
i'll be giving the 20D a clean tomorrow then..
I'm scared to take a pic of the sky in case I see how bad mine is.

i'll be giving the 20D a clean tomorrow then..![]()


Blimey yeah, you've got a bloody great airplane slap bang in the middle of your sensor![]()
![]()
Blimey yeah, you've got a bloody great airplane slap bang in the middle of your sensor![]()
![]()



any idea how much itll cost me to repair that?
I've got a can of compressed air sitting waiting to be used.

Compressed air, missus make up brush (cleaned on a piece of cloth) and a blower brush! :thumbsdown:
O.M.G....
Some of you are on a one way ticket to buggering things up.
Compressed air = moisture and you don't need that in a camera. :nono:
:nono: not in my test, :shrug:
The potential is there, I'm not saying it's guaranteed but it's a risk you take.
There's also the guarantee that never taking risks will mean you never learn and will not be able to convey your experience to others :shrug:
Bad decisions come from lack of experience, and experience comes from making bad decisions![]()
Common sense tells me it's a bad idea, experience tells my otherwise.It has nothing to do with a good or bad decision, it's just common sense.
Never asked you too :shrug: and because of my test it's not a theroyPersonally I'm not prepared to make a decision based on your theory
So your offering me advice and telling me it's a bad idea without any personal experience of what your talking aboutwhen I have read the views of many professional photographers and spoken to people within the industry.
It's you way of doing things and I am just pointing out the risk to other people.
http://farm4.static.flickr.com/3463/3937995288_cb89a9988e_b.jpg
i'll be giving the 20D a clean tomorrow then..![]()
re compressed air - it will contain moisture due to the nature of the way it is pressurised into the can. whether you get it on the first burst or the 7, 8, 9th burst no one can say.
personally id never put compressed air around anything sensitive to moisture (camera, PC etc).
Depends on the propellant in the can - some really are just pressurised air, others call themsleves compressed air but use a propellent.
One of the other hazards is the temperature drop due to the sudden pressure change - so you get damage caused by sudden freezing - you will feel this as you do it by the can getting very cold. I have some cans that have actually got covered in ice to the point you can't hold them anymore.
Provided people are aware of the pitfalls they can avoid them - just be advised that not all cans are the same. True compressed air is fine, masquerading compressed air cans aren't!
Personally I just lick my thumb and drag it across the sensor........

Sorry neil I don't want to seem argumentative.
Just nearly emptied my can doing a series of 4 to 6 second bursts on a mirror, nothing, not a drop of moisture.
Idiot proof way of blowing a mirror :shrug: not sure.
But I've put to rest, for me anyway, all the scare mongering of people who take it as gospel because they read it or heard it from a friend of a friend.
Steve
its more apparenty usually when you dont hold the can straight and upright.
Which can/make did you use. We have compressed air cans at work, but the propellant in them is damp.