I've got 2 FD35/2 lenses, and both responded very well to a UVA bath. My first 35/2 took a week under a $9 Home Depot UVA blacklight bulb to lose its amber, and the backup I just scored is at this very moment under the bulb on day 4. I love this lens even before you clear it up. The lens I leave on my GF13 all the time for stills and video, unless I need more light or reach. Definitely my favorite of my FD/FL lenses.
The yellow cast never bothered me, it was quite nice actually, and Lightroom took care of it automatically anyway. But I like shooting natural light and need every last candle I can muster, so the tanning bed was a big help.
The yellow cast never bothered me, it was quite nice actually, and Lightroom took care of it automatically anyway. But I like shooting natural light and need every last candle I can muster, so the tanning bed was a big help.
Be aware that 35mm f2.0 can have yellow cast (if you get thorium radioactive version with concave from element and minimum aperture f16), so you might need to white-balance every time you change your lens. Some people say you can get rid of it by exposing the lens to UV radiation for a week or two. Other report it doesn't help. Can't confirm - mine is convex f22 version, no thorium glass inside. I have one radioactive lens in my collection (amazing 55mm f1.2 Aspherical), but for some reason its thorium element hasn't turned yellow.