using your method I've just cleaned a copy of this lens that I bought second hand recently and had fungus - result: front element totally clean! but I can see the back of the lens has fungus too so I'll have to return it
it would have been interesting to see before-clean and after-clean photos of the same subject in the same lighting conditions so as to decide if that fungus was in fact affecting the photographic quality.
I'll think of that in the future, however, I made that for haze, check the results on this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-LJuwI4x6Cpg.html
Yeah, front is easy. Rear elements are encapsulated in plastic, 2 glasses in one plastic capsule and I have no idea how to pop them out without damaging.
Hello, got that for another lens. Had to damage the plastic (gently using a scalpel and magnifying glass) clean and the re-glue the lens in position. Cheers.
@@andyboa8107 Not on this lens, but i cut the plastic around one of the lenses, like in this one ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-qFfH3-gp2y0.html, or this one ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6jiIuf1Siso.html. Cheers.
Thanks. I finally clean it after try to remove a top ring. It's very easy to take lens off. But not easy to clean. Actually if I have Ether: Methanal (80:20) it work good, it's use in production line. Any other way to clean is use len's cleaning paper with your index finger+a little alcohol swirl from center to outer. Then finishing with Lens Pen.
У меня грибок на линзах близко к диафрагме с обеих сторон( перед ней и за ней). Как дальше разобрать объктив, чтобы добраться до грибка? Спасибо за видео!
The only thing I can think about is that the guiding is probably a bit wore at 28mm position, had the same issue with an 80-200 f/2.8D, after opening the lens and forcing just a bit, the problem went away.
That's surprising, Getting that part loose is not easy feat as far as I remember. Anyway, I have one of those that needs a full overhaul, so if you're willing to wait. I'll try to show how to fix that. Cheers.
