What is Schneideritis?

[mark]

I have seen this mentioned from time to time and I can't figure out what it is. I only have two schneider lenses and there is nothing wrong with either.

[David A. Goldfarb]

It refers to the flaking of the black paint used on the bevels of elements in lenses. The purpose of the paint is to reduce internal reflections in the lens. I don't think it is particular to Schneider lenses, but the construction of the Super-Angulon and some of the other Schneider wide lenses makes this problem more visible than it is on other lenses that have more cylindrical elements.

It is largely a cosmetic issue. At worst it slightly reduces the contrast of the lens.

[Paul Sorensen]

I will steal the line that someone else here (probably blansky) used before. Inflammation of the Schneider. :o

It usually looks more like bubbles than flaking paint in my experience. I have two Schneider lenses and a Fuji and the Fuji is the only one that has Schneideritis. Go figure.

[John Kasaian]

Its just something to while away the time discussing with other lf'ers on afternoons when the wind is too stiff to set up your bellows camera!

[Petzi]

[Dan Fromm]

I have seen this mentioned from time to time and I can't figure out what it is. I only have two schneider lenses and there is nothing wrong with either.

Should be called Boyeritis. I have a heap of Boyer lenses and they all have it. Possible exceptions are recent purchases still in transit, but I wouldn't bet that they they don't have it. The Boyers in my travel kit shoot very well in spite of their ailment.