Dust inside my 70-200 f2.8L IS!

[luc_asbury]

While snapping some senic shots I kept seeing a dark fleck, naturally I looked

at my filter and the front lense, then at the body side lens... that is when I

was able to see the the offending fleck of dust inside!

 

Have others had simmilar experience, how did you clean it out? Disassemble the

lens yourself or take it in to a shop for service?

 

I am leaning toward the service method rather than bunging up the internals on

my lense, any reccomendations for excelent camera service shops in the San

Francisco Bay area?

[shambrick007]

In the viewfinder or on the image? Digital? If so, it's probably dust on the sensor, and not the lens that's causing the problem. Dust in the lens would be pretty out of focus on the image.

[John Crowe]

You would never see dust in a lens in the viewfinder or in an image except possibly in a superwide angle lens. I can see water spots on the front of my 14mm lens when stopped down to f22.

 

 

The dust is either on your mirror, if you see it in the viewfinder, or on the sensor, if you see it in the image.

[mark_chappell]

<I>The dust is either on your mirror, if you see it in the viewfinder...</i><P>

 

Probably on the focusing screen in that case (not the mirror).

[luis alvarez torres]

Dust on a 70-200 "L" lens, isn't it suppouse to be a waterproof lens? how the he** a speck of dust got inside?

[PuppyDigs]

All lens have dust inside, even when new. As you use them the focus and zoom mechanisms

drive optical elements back and forth, thereby displacing air and sucking dust inside the lens.

Of course internal zoom and focus designs have the least problems. Those with front

element extension and nested barrels are virtual vacuums. For a real thrill, shine a penlight

down the barrel and look inside. Shocking...

 

Live with it. That's how it is. If you had it serviced every dad burn time a piece of dust settled

inside you'd rarely see your gear.

[phoneguy]

"Live with it"...Agreed, it's a fact of life with zooms. Also, your lens is not "waterproof" It's weather sealed. There is a big difference. You can't toss it in a bath tub full of water, but you can use it outside in the elements.

 

Mike

[les]

Clean your sensor. Any dark spots you see in the image are very unlikely to be caused by anything located inside the lens. Unless of course it is as big as a dead mouse.

[yakim_peled1]

>> All lens have dust inside, even when new.

 

Agree.

 

>> it's a fact of life with zooms.

 

It's also a fact of life with primes as well. Even my L primes - 200/2.8 L and 300/4 IS - had them. These were bought new and have IF. No problems. Picture quality was never affected.

 

Happy shooting,

Yakim.

[ben_jamin]

bought my 70-200 2.8L IS brand new and it came with few dust particles on the front elements, after using it for a month I got few more tiny lints/dust....I learn to ignore them. my 17-55 IS is even worst, it's a dust pump!