Fungus

>>3001644
Never hurts to try if the rear lens group is easily accessible. You could also try leaving it in direct sunlight for a few hours. Fungus isn't a fan of UV light. I'd try to get all of my money back honestly, if there was no indication whatsoever of the condition that's pretty shitty of them to do, especially since this isn't a single colony. I wouldn't take anything less than half.

>>3001650
I'd ask a $190 refund, otherwise I'll send it back.

As far as I know I think that Hasselblad Distagon's rear lens group is kind of difficoult to reach. And also I know that UV light is only useful to kill the colonies but not to eliminate their presence.

>>3001653
Right, if you can't separate the group then all UV will do is stop it from getting worse.
I have a 120mm Zeiss Planar that has pretty significant hazing on the front element but unfortunately it's cemented to another element so I can't get in between them to clean it. From what I can tell it doesn't have too much of an impact on image quality luckily but it sure doesn't look nice.

Best of luck to you, I know how frustrating it is to have such a nice lens seemingly compromised because of the conditions it was stored in.

>>3001665
Yep, It's tremendous. It was a huge disappointment, it came in perfect cosmetic contitions, it even has its original rear and front caps. But when I looked at the lenses...

By the way, I'll try to manage to solve the whole situation, it really bothers me to have a ruined lens, that fungus infection will surely affect the quality of the negatives. I always try to buy perfect stuff.

>>3001665
How can the fungus grow in the glue in between two elements wtf you saying

>>3001720
They can, the glue is the yummiest part of the lens.

>>3001720
Not fungus, I have hazing in between the elements in the front group. Although I know that fungus really likes to eat the glue that's used to bond the glass.
I was just trying to tell OP that I am dealing with another situation somewhat similar to his with having a lens that seems totally inaccessible to clean

I hate writing on the phone. Someone else post the story about ayya and the fungus, please

>>3002045
Cemented lens elements are stuck together with Canada Balsam. Very new lenses are some synthetic that's cured with UV light, and not canada balsam. But actual canada balsam is the purified sap from a tree.
So yes, sooner or later it's possible that shit will begin to grow into the incredibly thin layer of organic cement. Or it will 'separate', which is usually also caused by growth, but doesn't generally look like fungus.