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DPChallenge Forums >> Tips, Tricks, and Q&A >> Dust in the lenses?
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Showing posts 1 - 16 of 16, (reverse)
AuthorThread
 03/17/2007 01:01:41 PM · #1

What is this about? How in the world is it getting in, and is there a way of getting it out?

It really sucks. Its not that hard to fix in Photoshop, but its aggravating. Especially in Basic.
 03/17/2007 01:02:50 PM · #2
How do you know it's in the lens? Not the sensor? Post some examples??
 03/17/2007 01:05:59 PM · #3
Thats easy Strangeghost, because I see it in the lens before I put it onto the camera.

Hey its good to hear from you BTW. How ya been, and are you going to be at the STL GTG?
 03/17/2007 01:32:46 PM · #4
Originally posted by sacredspirit:
Thats easy Strangeghost, because I see it in the lens before I put it onto the camera.

Hey its good to hear from you BTW. How ya been, and are you going to be at the STL GTG?

But you indicated that you could see it in your pictures - which I doubt (but don't know for sure).

I wasn't in on the STL GTG (St. Louis?). Only Chicago and/or Minneapolis.
 03/17/2007 02:30:52 PM · #5
I have been wondering that question myself. How does it get in there? I have some dust inside my 200-500. I think it was in the lens from the factory and just made its way onto the glass after I banged it around for awhile. It doesn't have any effect on the photos just bugs me when I look at it. Kind of like a picture hanging crooked on the wall.

Edit to add, SG, Any Word on a Spring Time Wisconsin GT?

Message edited by author 2007-03-17 14:32:20.
 03/17/2007 04:33:37 PM · #6
Originally posted by Bugzeye:


Edit to add, SG, Any Word on a Spring Time Wisconsin GT?

Kirbic and I were thinking about the Milwaukee Zoo. Maybe sometime in April or May, when it warms up a bit for real??
 03/17/2007 04:59:07 PM · #7
My new 50mm F.18 lens has a couple of dust specks in it, but they don't show up in the pictures. of course, the lens only cost $70 bucks so I can't really complain.
 03/17/2007 05:54:10 PM · #8
No lens is truly sealed. They can't be, really. With moving elements inside, they have changing volumes between element groups (zooming, focusing), so they need to move air around. Where there is air movement, there can be dust entry. A little dust in a lens will never be detectable in photos. Dust that shows up on photos is almost always on the sensor (well, on the filter over the sensor, to be exact). A severely dusty lens might show decreased contrast, but you'd have to have outlandish amounts of dust in there for that.
 03/17/2007 05:56:05 PM · #9
Originally posted by strangeghost:
Originally posted by Bugzeye:


Edit to add, SG, Any Word on a Spring Time Wisconsin GT?

Kirbic and I were thinking about the Milwaukee Zoo. Maybe sometime in April or May, when it warms up a bit for real??


I'd sure be up for a GTG a little later in the Spring. May might be a good month; good weather is pretty common by then.
 03/18/2007 06:10:10 AM · #10
I clicked a frame
to capture a moment before the moment's gone
All my shots
Pass before my eyes, a curiosity
Dust in the lens
All we have is dust in the lens
Same old spots
Just some dots i try removing endlessly
All we do
is chase lent around to set our sensors free
Dust in the lens
All we have is dust in the lens, oh Now, don't hang on
Nothing you can do and nothing you can try
(except 2-8)
And all your money won't a dust-free lens buy
Dust in the lens
All we have is dust in the lens
All we have is dust in the lens
Dust in the lens
Everything is dust in the lens
Everything is dust in the lens
The lens

thanks to Kansas ;-)
 03/18/2007 06:14:43 AM · #11
Perhaps it's on your mirror, use a some type of dust removal (i.e. Giotto rocket blower)
 03/18/2007 07:30:50 AM · #12
Originally posted by ben4345:
Perhaps it's on your mirror, use a some type of dust removal (i.e. Giotto rocket blower)


Dust on the mirror will not show up on a photograph so longas the dust stays on the mirror. Once it shakes of the mirror and works its way around then itll get on the sensor and show up.

You could paint the mirror black and it wont affect what the sensor see's.

Besides hes convinced the dust inside the lense is the problem so i think sensor/chamber dust isnt even within the question.
 03/18/2007 07:59:11 AM · #13
Originally posted by Skip:
I clicked a frame
to capture a moment before the moment's gone
All my shots
Pass before my eyes, a curiosity
Dust in the lens
All we have is dust in the lens
Same old spots
Just some dots i try removing endlessly
All we do
is chase lent around to set our sensors free
Dust in the lens
All we have is dust in the lens, oh Now, don't hang on
Nothing you can do and nothing you can try
(except 2-8)
And all your money won't a dust-free lens buy
Dust in the lens
All we have is dust in the lens
All we have is dust in the lens
Dust in the lens
Everything is dust in the lens
Everything is dust in the lens
The lens

thanks to Kansas ;-)


hehe!
 03/18/2007 09:11:03 AM · #14
See the link below for my expert easy sensor cleaning tip.

Easy Expert Sensor Cleaning !
 03/18/2007 10:17:21 AM · #15
Usually if it is in the lens it will not show in any photos because of the depth of field focua length between the sensor and the dust, same goes for minoe dust on the outer end of the lens. If it is on the sensor it will show especially at ssettings like f/20 to f/32.
.
I just bought a new Canon 70-200 f/2.8 L IS and it is full of dust. If I hold it up and look through just the lense I can see several large pieces inside the lens. It does not show in photos but frives me crazy thinking about a $1800 lens that comes dirty inside. Best of luck.
 03/18/2007 11:21:57 AM · #16
The Zoo would be a great place to have a meet. Keep me in the loop.

Originally posted by strangeghost:
Originally posted by Bugzeye:


Edit to add, SG, Any Word on a Spring Time Wisconsin GT?

Kirbic and I were thinking about the Milwaukee Zoo. Maybe sometime in April or May, when it warms up a bit for real??

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