Originally posted by dngr
So I have a line on a cheap K 28mm F3.5 (or what they have listed as an SMC 28mm F3.5 in their inventory database, I don't know anything about K-series lenses but from what I've read they're the same thing) from the local camera chain. According to the guy I'm dealing with, the "exterior shows well with minimal scratches, aperture blades open and close with distinctive stops, no oil on the blades, clean over all with rear cap however there is a visible spec of dirt or dust inside the lens, it is noticeable". Unfortunately, I'm too far away to go see the lens in person, so I'll have to take his word for granted.
For those interested, the lens is going for $60
So, the question is: judging by his description of the anomaly inside the lens, is it worth my time and energy to open the lens and remove the dirt? What are my options here?
Dust inside the lens usually doesn't have any effect whatsoever on the image quality, as it's normal to see it accumulate over time. But I'd say it would still be worth it to see the lens in person, or at least to obtain some detailed pics.
Adam
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