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08-17-2009, 09:00 AM   #16
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There is a sticky felt type material surrounding the mirror and shutter "cave" that is supposed to allow the dust to stick to it and stay. As far as blowing dust around on the inside of the camera body, I wouldnt care about that. Not only is it sealed so the dust can just settle and stay put (no air movement back there to blow it around) but the electronics are most likely coated to resist moisture (humidity) and dust anyway.

08-17-2009, 09:02 AM   #17
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QuoteOriginally posted by jimH Quote
If they were as sensitive as you indicate, it wouldn't be practical to take them outside. However if you feel compelled to spend over $100 for a dust removal system, I guess that is your prerogative. I'd rather put that money toward a new lens.
Also if they were that sensitive to dust they wouldnt allow you to change lenses and risk getting the sensor dirty.
08-17-2009, 12:41 PM   #18
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Looks like most here prefer Gitzo type blower. Wheatfield is the only one using "canned gas," compressed or otherwise. That Arctic Butterfly isn't a bad idea, but seems overpriced. It's not hard to get a grooming brush to get charged up with static. It's probably best to avoid touching the sensor in any way while the camera is still under warranty.
08-17-2009, 04:26 PM   #19
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QuoteQuote:
Looks like most here prefer Gitzo type blower. Wheatfield is the only one using "canned gas," compressed or otherwise. That Arctic Butterfly isn't a bad idea, but seems overpriced. It's not hard to get a grooming brush to get charged up with static. It's probably best to avoid touching the sensor in any way while the camera is still under warranty.
I think that about sums it up! Thanks

08-17-2009, 11:31 PM   #20
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QuoteOriginally posted by MoparFreak69 Quote
There is a sticky felt type material surrounding the mirror and shutter "cave" that is supposed to allow the dust to stick to it and stay. As far as blowing dust around on the inside of the camera body, I wouldnt care about that. Not only is it sealed so the dust can just settle and stay put (no air movement back there to blow it around) but the electronics are most likely coated to resist moisture (humidity) and dust anyway.
I think the problem is the dust gets blown onto the focus screen, mirror, viewfinder, etc.
08-17-2009, 11:51 PM   #21
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QuoteOriginally posted by Wheatfield Quote
I just use canned gas, but the thought of that seems to make a lot of people cringe.
QuoteOriginally posted by wasim_altaf Quote
You mean compressed air like dust-off? There is a lot of force behind it. I think that's why people don't like them. I use it a lot to blow dust off my vinyl records. It tends to leave a layer of condensation too, if not sprayed properly.

You got me thinking, however. I have a can of this sitting around at home: Amazon.com: Oenophilia Private Preserve Wine Preserver: Kitchen & Dining. Not as compressed as dust-off and should be safer, I guess.
I agree with Weatfield. I use canned gas also. Yes, you hve to be carefull on how you use it. It does need to be sprayed properly. I squeeze out a few puffs BEFORE I aim it at the sensor and I don't spray to CLOSE to the sensor and use SHORT bursts. It works great for me.
08-18-2009, 06:48 AM   #22
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QuoteOriginally posted by wasim_altaf Quote
Looks like most here prefer Gitzo type blower. Wheatfield is the only one using "canned gas," compressed or otherwise. That Arctic Butterfly isn't a bad idea, but seems overpriced. It's not hard to get a grooming brush to get charged up with static. It's probably best to avoid touching the sensor in any way while the camera is still under warranty.
This whole discussion might be much ado about nothing, or at least much ado about very little. I've had my K10 for over two years and it's in use nearly daily, sometimes going through lens changes outdoors and I've only had to clean the sensor about twice. (Granted, I'm not photographing rodeos or dirt track stock car races or anything like that.) I used a blower bulb both times.

I think one of the keys to keeping dust off the sensor is to turn the camera off before removing the lens. I think that I've read that the sensor is charged while the camera is on, thereby attracting dust electro statically. Another possible preventative step is to use the blower occasionally to blow our the mirror cavity with the shutter closed. Another thing I do is to (occasionally) use the dust removal sensor shake function. But overall sensor dust has not been a big issue for me.
08-18-2009, 07:28 AM   #23
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QuoteOriginally posted by jimH Quote
I suspect that if Pentax thought it necessary use an electrostatic tool to remove dust from the CCD sensor they would have included those instructions in the Pentax operating manual.
The Pentax manual is hardly the epitome of... well, anything actually. No doubt it is not necessary to use an electrostatic tool, just like it's not necessary to use a lens cloth on the front element... wipe it with your shirt. You also don't need to use a lens hood or polariser or tripod, but all of these items might make things easier or better.

Michael at Luminous Landscape said: "the Arctic Butterfly from VisibleDust is hands-down the finest sensor cleaning tool yet developed, particularly for anyone that travels by air." Though I don't have the same experience in using other methods, I agree.

QuoteOriginally posted by jimH Quote
However if you feel compelled to spend over $100 for a dust removal system, I guess that is your prerogative. I'd rather put that money toward a new lens.
Thankfully I didn't spend $100 on mine. In fact even buying direct it only costs $57. Actually, I got two simultaneously, in error, which now reminds me I should sell one. Though not to you, apparently!

QuoteOriginally posted by jimH Quote
The Digital cameras are precision tools, however they do have a certain amount of durability. If they were as sensitive as you indicate, it wouldn't be practical to take them outside.
That doesn't follow.

QuoteOriginally posted by MoparFreak69 Quote
Also if they were that sensitive to dust they wouldnt allow you to change lenses and risk getting the sensor dirty.
That doesn't follow either. Just because there is a risk doesn't make it necessarily unacceptable or acceptable risk. We all find our own level of risk. I don't change my lenses in dust storms, neither do I leave bodies exposed for longer than necessary. Though I could, of course and I might just be fine.

Those who prefer to take good care of their kit might prefer taking the electrostatic approach to sensor cleaning. I think it's worth fifty bucks.

08-18-2009, 10:17 AM   #24
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All images (c) 2008-2009 Robin Parmar. Visit my Flickr images, website, or blog.
I took a look at your images on Flickr Robin, you have some nice images there!
08-18-2009, 10:52 AM   #25
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QuoteOriginally posted by rparmar Quote
Just because there is a risk doesn't make it necessarily unacceptable or acceptable risk. We all find our own level of risk
Agreed. That of course also goes for using a blower. So far, I haven't had problems with this - any dust that remains in the camera seems to stay off the sensor, as it is usually quite a long time (and hundreds if not thousands of lens changes) between dust episodes. But I do figure that if I ever get into a situation where the blower fails me, the Arctic Butterfly does seem like it would be where I'd turn next. Although I know the Pentax cleaning kit gets good reviews too. I really haven't looked much into the various options, but I do appreciate your endorsement of the Arctic Butterfly here.
08-18-2009, 04:35 PM   #26
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QuoteOriginally posted by jimH Quote
I took a look at your images on Flickr Robin, you have some nice images there!
Thanks. I am starting to get some professional interest, a few images in travel guides and stuff. But mostly I just take photos because I like to!
08-22-2009, 11:28 PM   #27
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I have had a problem getting some dust out and after repeat attempts more than a dozen(Usually I have no trouble but with a christening coming up soon,I want to keep pp to a minimum)it still there right down the middle 3 of them and 1 on the left.I will try again with a series of short blows again and again to see if it works.Bummer that mean the K10D will do most of the work while the K20D is parked


cheers
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