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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 11 Apr 2010 (Sunday) 11:05
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what are these dots?

 
sd850is
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Location: 91702
     
Apr 11, 2010 11:05 |  #1

some of my lens, when I look at them hard enough I can see these small dots... I tried removing them with the lens pen or the lens solution cleaner but they won't go away... what are they? they're like the size of a needle pin

It doesn't show up in pictures or anything, it just bothers me knowing that its there lol


7D and T1i |17-55mm f/2.8|50mm f/1.4|Sigma 30mm f/1.4|70-200mm f/2.8L IS|55-250mm|580EXII
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7Ddame
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Apr 11, 2010 11:11 |  #2

are they inside the lens? could be dust.. I hate when that happens but can't get to it without taking the lens apart. Do not use air in a can whatever you do! sometimes I 'get lucky' with my regular blower though, but I'm a chicken at cleaning my camera equipment.


CANON7D ηifty-fifty | Σ 85 ƒ/1.4 | Σ 30 ƒ/1.4 | Tokiηa 11-16mm ƒ/2.8 | Kεηko tubεs | Cαnoη Spεεdℓitε 430εx II | αb b800 |
wishlist : Canon 100mm 2.8L IS, vagabond mini, mola demi bd
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sd850is
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Apr 11, 2010 11:28 |  #3

no, they're on the outside.... they don't look like dust, it looks like if someone took a needle pin and dropped it on the lens, so there are these small dots... you can barely see them, but it still bothers me


7D and T1i |17-55mm f/2.8|50mm f/1.4|Sigma 30mm f/1.4|70-200mm f/2.8L IS|55-250mm|580EXII
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spacetime
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Apr 11, 2010 11:51 |  #4

Sounds like imperfections in the coating of the lens.




  
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Erik_L
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Apr 11, 2010 12:30 |  #5

is it on the Sigma? my Sigma lenses that I had at one point all had those little specs on the front elements.


Canon EOS 1D III
Manfrotto 190X Pro B w/324RC2 "Action Head" | Canon 580EX II
Sigma 20 f/1.8 | Canon 35 f/1.4 L | Sigma 50 f/1.4 | Sigma 85 f/1.4 | Canon 135 f/2 L
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sd850is
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Apr 11, 2010 14:06 |  #6

Erik_L wrote in post #9974117 (external link)
is it on the Sigma? my Sigma lenses that I had at one point all had those little specs on the front elements.

Yup it's on the sigma.... :(

Pictures are still clear as heck tho


7D and T1i |17-55mm f/2.8|50mm f/1.4|Sigma 30mm f/1.4|70-200mm f/2.8L IS|55-250mm|580EXII
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Madweasel
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Apr 11, 2010 14:11 |  #7

sd850is wrote in post #9974501 (external link)
...Pictures are still clear as heck tho

Then why worry?


Mark.

  
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tekkie
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Apr 11, 2010 14:15 |  #8

alot of lenses have these imperfections, if its not hurting your pics dont worry about it :)


Canon 1DMKII, 7D, 5DMKII, 1D MKII
Canon 500L, 100-400L
, 70-200 2.8L, 17-40L, 24-105L, 24mm 2.8,50mm 1.4, 85mm 1.8, 135mm 2.8 SF, 100mm Macro
Canon 430 & 580 flashes

  
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what are these dots?
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