whatlightdoes

Thanks for the head's up on that. I watched a YouTube video of a guy taking this lens apart, and it seemed pretty tricky to get things back together without breaking something. I've dismantled, ...

Interesting. I've had vintage lenses with balsam separation, but I haven't had a more modern lens with it. On the vintage lenses I've had with separation, I've always had larger portions separate ...

Thanks for the links. Those are great. I had found a YouTube video of a fellow dismantling this lens, but he had already broken the front piece of the lens, and it looked tricky to take it apart & ...

Hi. Thanks for the reply. It isn't on the front surface of the lens. I'd need to dismantle the lens to try to clean it. When I look at it closely, it does resemble water deposits.

I just received a used Sony a6000 I bought on eBay, and one of the lenses--the SEL55210, which is a 4.5 - 6.3/55 - 210, has a bunch of bubbles in or near the front element. It reminds me of ...