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02/10/2005 11:34:24 PM · #1 |
I just noticed a few days ago that in between the glasses of my lenses (Canon 28-135), dust has accumulated. The guy in the store where I bought the lense, claims that it doesn't affect the quality of pictures, which to me, doesn't sound right. He also said that this kind of problem is not covered by the guarantee. I am trying to contact Canon in this matter. Has anyone had this problem as well?
I am considering returning this lense and getting a new one, but this time a Canon 17-85 or Canon 17-40 F 4.0. Does anyone have a comparison of those two lenses (pictures), or where I can find one?
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02/10/2005 11:46:07 PM · #2 |
I have a 28-105 with a speck of dust on the inside. This is common with lenses that aren't sealed, as the zooming action pumps air in and out of the lens. I few specks probably wouldn't be visible at all unless you were shooting with a really small aperture (f/22+).
The Canon 17-40 is an outstanding lens and it's sealed, with an internal focusing mechanism that isn't likely to allow dust inside. The 17-85 isn't as sharp, nor is it sealed- it's basically a higher-end kit lens with image stabilization. A quick search on Google should lead you to many reviews of each. |
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02/11/2005 12:18:46 AM · #3 |
Originally posted by artvet:
I just noticed a few days ago that in between the glasses of my lenses (Canon 28-135), dust has accumulated. The guy in the store where I bought the lense, claims that it doesn't affect the quality of pictures, which to me, doesn't sound right. He also said that this kind of problem is not covered by the guarantee. I am trying to contact Canon in this matter. Has anyone had this problem as well?
I am considering returning this lense and getting a new one, but this time a Canon 17-85 or Canon 17-40 F 4.0. Does anyone have a comparison of those two lenses (pictures), or where I can find one? |
I few specks of dust probably will not effect the image as much as it affects the photographer. Evidence of dust between the elements can however be a precursor to fungus growth if the lens is used or stored in less then arid conditions. Dust is covered by the Canon Factory Service warrenty, but if you send it in expect that it quite possibly will be returned to you in worse condition then before you sent it in. That has been my experience. The warrenty will not replace the lens because of dust.
Again this yet one more problem inherent in wide ranging zoom lenses. The 17-40 is a safer bet if you are worried about this happening again.
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