Internal dust

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FastGlass

Senior Member
So I had all my lens's out the other day to just clean them up. Noticed at least two of them had some minor internal dust behind the front element. How many of you have tried to clean it? Saw a video with someone dismantling an 85 1.4. Looked pretty straight forward. Not sure if I'm ready to do it though. No the dust doesn't seem to effect the images but knowing it's there just bugs me. Anyone of you tried this? Did it work?
 
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480sparky

Senior Member
Fuggedabowdit. A little bit of dust, especially near the front, won't affect your images one bit.

One of my sharpest lenses, an old 135/2.8 Ai-S Nikkor, has enough dust in it I joke I could plant crops in there. This 30-year-old relic beats the pants off my 70-200/2.8 VRII at 135mm.
 
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STM

Senior Member
A little internal dust is not going to affect IQ. Today's lenses are very complex assemblages of metal, glass and plastic. I would not go about taking them apart unless I knew good and well what I was doing. I dismantled my 50mm f/1.4 AI'd a few years ago to remove some fungus but that is a very simple lens compared to most.
 
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