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General photography questions and answers: Discuss Where's The Dust?...I can't see dust in the viewfinder, but I can see it on every pic that's downloaded onto pc ... ...
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Old 02-05-2008, 13:37   #1 (permalink)
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Where's The Dust?

I can't see dust in the viewfinder, but I can see it on every pic that's downloaded onto pc ... so whereabouts on the camera is it
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Old 02-05-2008, 14:46   #2 (permalink)
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Re: Where's The Dust?

On the sensor.
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Old 02-05-2008, 14:49   #3 (permalink)
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Re: Where's The Dust?

Thanks Stepheno
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Old 02-05-2008, 14:51   #4 (permalink)
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Re: Where's The Dust?

Needs a clean.

Arctic butterfly works really well.
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Old 02-05-2008, 16:09   #5 (permalink)
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Re: Where's The Dust?

If you have never done it before, take heart, it's not as bad as it seems. There are many different ways of doing it - I just prefer Pecpads and Eclipse. There's a good article here which explains all.
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Old 02-05-2008, 18:12   #6 (permalink)
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Re: Where's The Dust?

If it's only a bit of dust you can use a 'blower bulb' like the Giottos rocket blower, which you can get in Jessops, or online, I know Warehouse Express sell it
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Old 02-05-2008, 18:23   #7 (permalink)
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Re: Where's The Dust?

SRB charge 3.20 for the med and 4.15 for the large Hurricane Blower.
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Old 02-05-2008, 19:13   #8 (permalink)
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Re: Where's The Dust?

Used eclipse a couple of times & it was a bit smeary. Tried the intemos swabs, which seemed to remove dust more and also dried the sensor & left fewer smears, but the butterfly after a good blow out with the rocket works best for me.
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Old 02-05-2008, 19:24   #9 (permalink)
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Re: Where's The Dust?

Graham it says NOT suitable for cleaning digital camera sensors!!!!!!!!!!
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Old 02-05-2008, 19:34   #10 (permalink)
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Re: Where's The Dust?

Quote:
Originally Posted by JMitchell View Post
Graham it says NOT suitable for cleaning digital camera sensors!!!!!!!!!!
And the Rocket blower is?????

Quote:
If it's only a bit of dust you can use a 'blower bulb' like the Giottos rocket blower, which you can get in Jessops, or online, I know Warehouse Express sell it
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Old 02-05-2008, 19:55   #11 (permalink)
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Re: Where's The Dust?

Yeah but I guess they are for different things...I dunno why it would say that about that one, but I've heard the rocket blower recommended for such things...
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Old 02-05-2008, 20:08   #12 (permalink)
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Re: Where's The Dust?

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Originally Posted by JMitchell View Post
If it's only a bit of dust you can use a 'blower bulb' like the Giottos rocket blower
Trouble is....where are you blowing the dust to?
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Old 02-05-2008, 22:12   #13 (permalink)
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Re: Where's The Dust?

Thanks for the how-to link Stepheno, that's a big help

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Trouble is....where are you blowing the dust to?
It might bounce its way out?

Have ordered a "Q Ball Rocket Blower" + see how that fares, in the first instance.

Anyone ever tried hoovering their camera
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Old 02-05-2008, 22:15   #14 (permalink)
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Re: Where's The Dust?

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Anyone ever tried hoovering their camera
Remember to use a new dustbag so you can retrieve the mirror easily.
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Old 02-05-2008, 22:34   #15 (permalink)
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Re: Where's The Dust?

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Old 02-05-2008, 22:45   #16 (permalink)
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Re: Where's The Dust?

You Really Arnt Supposed To Use Rocket Blowers On Sensors, But If You Do Make Sure You Hold The Body Upside Down While Blowing It, It Then Falls Out,.
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Old 02-05-2008, 23:53   #17 (permalink)
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Re: Where's The Dust?

Quote:
Originally Posted by lifethrualens View Post
You Really Arnt Supposed To Use Rocket Blowers On Sensors
Why not?
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Old 02-05-2008, 23:53   #18 (permalink)
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Re: Where's The Dust?

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Anyone ever tried hoovering their camera
No, but I've got a pressure washer in the shed if you want to borrow it......
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Old 03-05-2008, 00:01   #19 (permalink)
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Re: Where's The Dust?

You can use bulb-type blowers but be careful not to let the nozzle touch anything. That method is recommended by Canon - not sure about the other manufacturers. Whether it achieves anything other than blowing the dust to another part of the sensor is another matter.

What you mustn't use is 'canned air' - the aerosol dusters - because the propellant can contain impurities which create droplets on the sensor. Also the air from aerosols exits the nozzle at a very low temperature, and can cause thermal shock.
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Old 03-05-2008, 00:04   #20 (permalink)
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Re: Where's The Dust?

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No, but I've got a pressure washer in the shed if you want to borrow it......
Got my own thanks Which spray setting d'you recommend - small aperture (as it were) or large
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Old 03-05-2008, 00:07   #21 (permalink)
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Re: Where's The Dust?

Thanks for clarifying re: using blowers on a sensor Silky
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Old 05-05-2008, 18:22   #22 (permalink)
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Re: Where's The Dust?

Quote:
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What you mustn't use is 'canned air' - the aerosol dusters - because the propellant can contain impurities which create droplets on the sensor. Also the air from aerosols exits the nozzle at a very low temperature, and can cause thermal shock.
Well I have a couple of the RS air cans which are fine. They don't go cold (and thus spit) and are solvent free. Not cheap though.....

Never really got on with my sensor brush and therefore use Eclipse and sensor swabs / pec pads.
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Old 05-05-2008, 20:57   #23 (permalink)
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Re: Where's The Dust?

Looked in my manual. Nikon say :

Cleaning - Lens, Mirror + Viewfinder: These glass elements are easily damaged. Remove dust and lint with a blower. If using an aerosol blower, keep the can vertical to prevent the discharge of liquid. To remove fingerprints and other stains, apply a small amount of lens cleaner to a soft cloth and clean with care.
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Old 05-05-2008, 22:21   #24 (permalink)
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Re: Where's The Dust?

Not sure I would touch the mirror with anything other than a puff of air.
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Old 05-05-2008, 22:32   #25 (permalink)
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Re: Where's The Dust?

I'd be wary as well Graham. However, if Nikon have said this in their manual, then I would imagine that they would have to cover the sensor (which they have referred to as "lens" in this instance), mirror + viewfinder if they got damaged because of cleaning using the method as directed by them. This indicates to me that it should be ok to clean these parts like this, assuming that Nikon are not keen on replacing potentially thousands of sensors etc. Or would they in fact cover these under warranty re: cleaning
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Old 05-05-2008, 22:50   #26 (permalink)
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Re: Where's The Dust?

I think that the mirrors are made by evaporating a VERY thin layer of metal on the glass - probably around 1 micron (1/1000 of a millimetre). This layer is VERY VERY fragile, and personally, I would not physically touch it.

BTW, in my previous job, one of the things we did was evaporate metal onto glass. Not to make mirrors, the layer would be etched away to leave a scale, 'crosshairs' or something similar, but the layer itself was very easily damaged.
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Old 05-05-2008, 23:17   #27 (permalink)
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Re: Where's The Dust?

Here's some more on cleaning from the manual, if anyone's interested :

Low-Pass Filter :
"The image sensor that acts as the camera's picture element is fitted with a low-pass filter to prevent moire. If you suspect that dirt or dust on the filter is appearing in photographs, you can clean the filter as described below. Note however that the filter is extremely delicate and easily damaged. Nikon recommends that the filter be cleaned only by Nikon-authorized service personnel."

Shutter Curtain:
"The shutter curtain is extremely thin and easily damaged. Under no circumstances should you exert pressure on the curtain, poke it with cleaning tools, or subject it to powerful air currents from a blower. These actions could scratch, deform or tear the curtain."

See now this is exactly why I'm too scared to clean anything inside the camera, 'cos I don't know where the no-go bits are, in order to avoid them. S'pose it's time I found out, hey.
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Old 05-05-2008, 23:27   #28 (permalink)
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Re: Where's The Dust?

hmmmmmm well all this thread has only convinced me to wait and get the camera into a shop to get it cleaned.............the 30D is COVERED in dust bunnies.,....... shows how well the sensor cleaner works on the 400D cos that aint got a single one!
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Old 06-05-2008, 07:06   #29 (permalink)
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Re: Where's The Dust?

My comments are only aimed at the mirror - not the VF or the sensor. A gentle puff usually will be sufficient, stubborn dust could be caressed with a very fine soft brush, but I would not use a cleaning cloth, wet or dry.
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Old 06-05-2008, 09:19   #30 (permalink)
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Re: Where's The Dust?

My fear, Graham, is that the parts are all so close together that if you give one element a certain treatment (be it blower or brush) then the others are likely to receive a little of the same, owing to their close proximity, unless you had an extremely minute (minoot) brush for total precision
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