ron_brown6 Posted January 12, 2014 Share Posted January 12, 2014 <p>I have a 70-200mm f4 IS and I noticed a couple of pieces of dust inside. Is there any way for me to clean this myself, and if not, can it be done professionally.</p> Link to comment Share on other sites More sharing options...
alan_bryant1 Posted January 12, 2014 Share Posted January 12, 2014 <p>The short answer is "don't worry about it, all lenses have some dust in them, it almost never matters."</p> <p>Or you can look at this,</p> <p><a href="http://www.lensrentals.com/blog/2013/05/a-few-easy-lens-dustings">http://www.lensrentals.com/blog/2013/05/a-few-easy-lens-dustings</a></p> Link to comment Share on other sites More sharing options...
Marcus Ian Posted January 12, 2014 Share Posted January 12, 2014 <p>Uh-oh, specks of dust? You should probably disassemble the lens in your clean room and thoroughly clean it, then reassemble. Don't forget to use your optical bench to align all the lens elements correctly, and relubricate the zoom and focus paths.</p> <p>Seriously though, yeah, don't worry about it unless you've packed enough dust in there to specifically impact your shooting. Number of lenses I own with dust in them? ALL, Number of lenses who's images are affected by that dust? NONE.</p> Link to comment Share on other sites More sharing options...
steven_flanagan Posted January 12, 2014 Share Posted January 12, 2014 You can see the dust because the lens of your eye is focusing on the dust. But the lens containing the dust will never focus closer than 20cm, nevermind internally within the lens. Therefore the dust is so out of focus in you lens that it will cause completely insignificant circles of confusion in your photos due to it's small size. Only worry about the dust on your sensor or on your subject, because that is where the focusing is. Link to comment Share on other sites More sharing options...
g dan mitchell Posted January 12, 2014 Share Posted January 12, 2014 <p>Short answer is that a few specks of dust are normal - virtually all lenses have them - and that they have no effect on your photographs.</p> Link to comment Share on other sites More sharing options...
PuppyDigs Posted January 13, 2014 Share Posted January 13, 2014 <blockquote> <h1>"Dust in my lens"</h1> </blockquote> <p>Is't that a popular song?</p> Sometimes the light’s all shining on me. Other times I can barely see. - Robert Hunter Link to comment Share on other sites More sharing options...
robert_turner5 Posted January 13, 2014 Share Posted January 13, 2014 <p>"all we are is dust in the lens... Oooooohh ohhh oh"<br> I agree, worry not about the specks. Should you see Jimmy Hoffa between elements, then it's time to investigate...</p> Link to comment Share on other sites More sharing options...
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