"Allow" lol
I mean, come on.
Don’t you mean, c’mon man….

"Allow" lol
I mean, come on.

Interesting if true. Fahrvergnügen means driving pleasure and featured in VolksWagen ads.
What were you thinking of?

I know this isn’t an issue exclusive to Schneider, but Schneider seemed to specialize in ‘known issue’ type problems.
My early serial number Super-Symmar 110xl was purchased by me, new from Robert White around 2003. The most expensive lens I ever bought.
I used it for 10 years, and then not so much for another 5-6 years, and subsequently upon returning to LF noted a sort of internal ‘milkiness’ when inspecting the lens. It’s not fungus. The internet revealed it to be another ‘known issue’ courtesy of Schneider. Some solvent used in the manufacture seems to gas-off over time, gradually fogging the lens.
So, have you disassembled the lens groups to clean the air-spaced surfaces? It’s very common for volatile components to settle on these surfaces, and it’s easily cleaned off. I have to do it with about 70% of the Schneider lenses I service (on various Kodak cameras).
Don’t you mean, c’mon man….![]()
There was a lot of discussion on forums on this issue, Large Format Photography Forum is the one I'm most familiar with, going back to about 2003 and repeating periodically. Sadly, folks who talked to Schneider engineers and/or sales reps reported a number of different causes ranging from the way the lenses were coated, to adhesives, to condensation from storage conditions, and even the composition of the glass itself. Seems like even Schneider had a difficult time achieving consensus on the cause. While at least one person reported having their lens serviced by Schneider an overwhelming were faced with "we do't service lenses for that condition anymore" repsonses. It was a sad time for Schneider it seems.
So, have you disassembled the lens groups to clean the air-spaced surfaces? It’s very common for volatile components to settle on these surfaces, and it’s easily cleaned off. I have to do it with about 70% of the Schneider lenses I service (on various Kodak cameras).
Disassembling lens groups to clean the air-spaced element surfaces does not require the assistance of a trained technician.Thanks for the perspective Retina. I may at some point endure the expense of sending the lens to Belgium to a repair guy I trust. But it may be a waste of time & money.
I bought a Schneider APO Symmar MC 150mm f/5.6 shipped from Japan dealer in 2020 without Schneideritis. $520. Still looks OK today. Maybe I got lucky.
Disassembling lens groups to clean the air-spaced element surfaces does not require the assistance of a trained technician.

With the fog it's life is over, and so ends the warranty!I might void my lifetime warranty![]()
I’m sure you’re right. But you’re also making some assumptions there that cleaning the lens groups will improve the situation. As Brian detailed above - this is a known issue. If it was as straightforward as you seem to suggest, I think Schneider would have suggested as such to the many photographers who have been affected by this issue. I don’t want to fiddle about disassembling a very expensive lens with no clear purpose. I might void my lifetime warranty![]()
Now you've got me to thinking, and I'll spend the rest of the day wondering if everything, 'just is'? And if so, do we have free will to change what just is, or is it preordained? Can we even see what just is, or only the flickering shadow of it on our cave wall?

i love Scneideritis--it gives me discounts on great lenses because people are afraid of it..
Issues with my Schneider lenses? No problem...I have these [useless documents] ...Ha ha...
View attachment 417451
What are the details on the reverse side? Probably could help us better understand the "limited" nature of the lifetime warranty.![]()
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