40D dusty sensor 'problem'?

Hi All

There was another thread of someone not very happy about a dusty sensor from new.

Well I finally got round to seeing how dusty mine actually is - sadly no blue skies just dull grey - took the usual 'defocused' sky shots and yes I have dust which will not shift with a rocket blower. For the record my 350D had a little dust which blew out but have no dust bunnies show in my small aperture blue sky aviation shots and this is two years old.

But now I have the 40D and have found dust(dirt?) showing up, just visible, at f9 not surprisingly more pronounced at f11 and smaller. Now bearing in mind I like to take pictures of aircraft when I can using small apertures are a must to get the prop blur just right

I have to hand a Copperhill Sensor Brush )bought as a travel cmpanion fo teh 350D) but if the dust is really lubricant debri I feel I need to go straight to a wet clean afterall I do not want to crud the brush up on its very first usage!

So where in the UK can one buy the right liquid and pads suitable for the 40D?

My old 350D remaining clean has rather spoiled me for the day when I need to wet clean but to 'swap it' for another (just as likely to get a dirty one?) or get Canon to clean it are IMO not logical options. Having said that has anyone used Fixation walkin service and how long did they take? Indeed do they offer the service for non Pros?

Edit:- How good is the Dust Delete Data function? I know one has to use DPP to make use of it but if you save as/export from DPP as TIFF that should be a good sized un adulterated file for PPing in say CS2.

Warehouse Express will see you right, BB...

You might want to do a bit of reading around about wet-cleaning the 40D sensor though - there are conflicting reports about which liquid to use, and a new thread on the subect has just been created on here: https://photography-on-the.net/forum/showthre​ad.php?t=391411.

Thanks for the pointer!

In the meantime I had emailed Just Ltd and got a reply along these lines -

Blower in first instance , then as needed a dry contact method either a brush which I still think could get cruddy unless the sensor is fairly clean i.e. dust only present or use DustAid the 'sticky' pad method. I think I recall reading that DustAid works well but is somewhat worrying that it uses a sticky pad, however it would seem the ITO coating on the 40D sensor is likely tougher than is believed

Then lastly use a wet method using E2 and Sensor Swabs Type 2.

That is deal with loose dust and particles first then wet clean to get rid of smears etc.

I hope 'he' does not mind me copying this last bit of guidance and bear in mind 'they' sell sensor cleaning kit and as I read it this is good advice:-

"Sensor cleaning is quite an easy procedure, but many people are nervous and put it off as long as possible. So, their first cleaning is on a very dirty sensor, with a lot of stuck-on contamination. i.e the first cleaning is the hardest because you are dealing with lots of contamination and learning how to do it at the same time. Subsequent cleanings are usually much easier. It is then easy to become a little obessed with cleaning, wanting to clean away every mark as it appears. This tendency should be resisted as dust is everywhere and as soon as you clean, some more dust will come along anyway. Only clean when the number of marks becomes a nuisance and require too much effort retouching."