Canon 100-400is (1 Viewer)

LeeDavis

Lee Davis Wildlife Photography

• Feb 17, 2004

• #1

Hi all,

Please can someone tell me if they have one of these lenses if they have dust inside of the main elements. if so thats ok, if not mine is faulty (Great!)

thanks Lee

 

A

Art Thorn

Well-known member

• Feb 18, 2004

• #2

No dust in mine (that I can see).

 

nigelblake

don't re member

• Feb 18, 2004

• #3

I have a few small specks of dust in mine, it does not impair its performance. As the lens zoom action acts like a bicycle tyre pump, it is not surprising that it gets dust in it. You would be surprised at just how much crap you can have on a lens before it causes noticable effect on the image, just look at a mirror lens with a reflecting element smack in the middle of it!!!!

 

P

Peter Galbavy

Member

• Feb 18, 2004

• #4

LeeDavis said:

Hi all,

Please can someone tell me if they have one of these lenses if they have dust inside of the main elements. if so thats ok, if not mine is faulty (Great!)

thanks Lee

Click to expand...

Dust is a common phenomena with these push-pull style zooms. Canon do a 'fixed price' service that may be worth it if your unit gets too rough. I find it is very much dependent both on the environment you use the zoom in (think, it has to suck air in from somewhere ...) and also the bag or whatever you keep it in.

My favorite zoom still.

--
Peter