Problem (?) with FA 80-200 f4.7-5.6

[Jay Taylor]

I have one of the newer (silver) FA 80-200 f4.7-5.6 zoom lenses. I just 
noticed over the weekend that the majority of pictures taken with this 
lens that the RAW images seem to have a sort of a "haze" or cloudy look 
to them. Can't figure out what may cause this nor have not seen it in 
any other lenses I have. The images can be corrected in ACR by 
adjusting the shadow slider. I bought this lens on eBay for $45 so 
maybe it is defective. Anyone else experience anything like this?

Thanks,
JayT