Hi everyone,
This is my first post here. I've found the forums and lens reviews a fantastic resource (thank you!) and I hope that you more experienced folks out there might be able to help with a lens issue I have.
I recently bought a Vivitar 85mm f1.8 Lens on eBay. I've heard this is a fairly rare lens, and so far has not disappointed.
Everything is in fantastic condition with it, apart from some odd marks on the glass in the front lens group. I was wondering if anyone could help identify what it might be from the photo below.
Could it be fungus? I've never seen a fungus look like that, but perhaps you have? It almost looks liquid, or like a glass defect perhaps. My best guess would be fungus that has secreted something that's eaten the lens coating, but I've never seen what that looks like, so that's a stab in the dark!
If anyone has any ideas I'd be interested to hear. I have taken out the front element to check it, but whatever it is, its on the back of the element behind which is not so easily accessible.
If it's something that can be cleaned/rectified I might look at opening it up further.