White dots / filament at the edges of a lens

[alex_fan1]

Hi, I found that there is some small white dots / filament near the

edges of the inside elements. What are they ? Do I need to do

something about it. It seems has no effect on the image.

 

Thx

Alex<div></div>

[alex_fan1]

<img src=http://www.photo.net/bboard/image.tcl?bboard_upload_id=20408984>

[shambrick007]

Looks like separation of the elements from the barrel. <p>"Do I need to do something about it." <P> No, like you said, this tiny bit would have no effect. No much that could be done besides a reconstruction.

[dan_fromm1]

"Schneideritis." The black paint on the rim of the element is separating from the glass. Harmless except to resale value. Schneider lenses often have this problem, hence the name. FWIW, my Boyer lenses have it worse than my Schneiders.

 

Cheers,

 

Dan

[les_lammers]

It's contaminated. Send it to me and I will properly use, er, dispose of it.

[james_.1]

Who knows, but I've seen them on a couple of new 75mm summilux lenses. I'm sure that

portion of the lens has no affect on the image, so don't worry about it. I don't think it'd

affect resale value either- a lot of transactions are done online nowadays and who would

see that? Plus, it wouldn't matter to the imaging anyway.

[back_alley_.]

"Schneideritis" ...is that what my lens has?<div></div>

[eliot_rosen1]

I agree that it looks like paint loss from the edge, it's of very little consequence. You do not need to do anything about it except if big flakes of paint fall off and onto lens surface. It will not affect the image quality and should not affect the value of the lens either.

[capocheny]

Alex,

 

Dan's absolutely correct... I've found similar artifacts in a number of my large format

lenses ranging from a 210 to 360 Symmar. It's not a problem so don't worry about it.

 

Cheers

[henry_ting2]

As other noted, its paint falling off.

The chrome and the titanium lens are prone to this when Leica coated the barrel with matt black paint on top of either chrome or titanium. I have a 35mm titanium Summilux with the black paint almost all gone. Shame that this could happen to such expensive lens.

[icuneko]

Acne. It'll go away as the lens ages. Don't worry about it unless it keeps you from getting dates, assuming you're single.