Severe decentering of Panasonic 35-100mm f2.8

My Panasonic 35-100mm f2.8 was normal at the  first time,but afterwards a severe decentering problem has occured as seen below.As far as I can remember,there was no shock to the lens.The only cause,in my opinion,is heavy use of it.I used it most frequently among my MFT lenses.

Panasonic required about $450 for repair.It appears they cannot solve the decentering problem by adjustment of the parts and only can repair it by changing the whole related parts.The repair price is burdensome to me.If the decentering problem of the other Panasonic lenses should be repaired in the same way,I will not buy Panasonic lenses any more.I know the decentering of Canon lenses can be solved only by adjustment,not by replacement of the whole related parts.

※To know how the decentering of Panasonic lenses are handled,I contacted LensRentals,and received an answer as follows.

That's pretty much the way it is with all Panasonic and Olympus lenses. Neither company is set up to do optical adjustments in the US, from what we can tell. They must have companies doing this for them, and in most cases, it's as your link describes. In a handful of cases we've been able to adjust certain m43 lenses, but most of the time we send them off. Hope this helps.

Joey Miller
LensRentals.com

Thank you http://www.lensrentals.com/