whiplash23
TPF Noob!
- Joined
- Feb 21, 2009
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I just picked up my first used lens via ebay (Nikkor 105mm f2.8 Micro) and there is a problem with the rear element. The seller has a good rep and offered a refund so I am not concerned about losing money.
With that said, upon close inspection of the lens there appear to be a number of round-ish spots in the coating on the rear element. The don't have any color to them and are only visible if the light is at just the right angle. Despite my best efforts with a lens cloth and lens cleaner, they won't come off.
Can anyone tell me what they think this may be? I assume that the coating has been damaged by mold or fungus, which has since been wiped off, but I have no real idea what I am dealing with.
With that said, upon close inspection of the lens there appear to be a number of round-ish spots in the coating on the rear element. The don't have any color to them and are only visible if the light is at just the right angle. Despite my best efforts with a lens cloth and lens cleaner, they won't come off.
Can anyone tell me what they think this may be? I assume that the coating has been damaged by mold or fungus, which has since been wiped off, but I have no real idea what I am dealing with.