kellymills

Ta da! I finally got it apart! Thank you very much for your assistance.

Will do, although patience is not my strong suit.

Well, I tried the 3-in-1 lock lubricant but the shade ring still won't come apart. I even heated the ring up with a hair dryer to see if I could get it to wick up into the threads. Tomorrow I'm gong to try some transmission oil. That's worked well in the past for me on frozen bolts. I've examined the shade ring closely and there's no visible distortion, dings, or cross threading. The lens came from a friend who took meticulous care of it. But I doubt he ever took the ring apart during the years he owned it. He shot mostly color film with it so all he ever did was remove the entire shade ring so he could screw on the polarizing filter.

With regard to the original post for this thread, the ProShade 6093 is a good way of using filters on this lens, assuming I get the shade ring to split. You can use 100mm sq. gel or acetate filters with it. I bought a set of Lee's B&W contrast filters to use with it. There are a good number of shades for sale out there. The trick is finding the 93mm adapter ring for it. Prior to this, I simply attached gel filters to the front of the lens with three tiny pieces of tape.

Doh! I see that was already suggested. I'll simply report back later on the success or failure of the lubricant.

With regard to the original post for this thread, the ProShade 6093 is a good way of using filters on this lens, assuming I get the shade ring to split. You can use 100mm sq. gel or acetate filters with it. I bought a set of Lee's B&W contrast filters to use with it. There are a good number of shades for sale out there. The trick is finding the 93mm adapter ring for it. Prior to this, I simply attached gel filters to the front of the lens with three tiny pieces of tape.

Before resorting to a liquid lubricant, try putting the lens, face-down, on a piece of the sticky mesh grid used for stabilizing small objects while sanding. You can get it at any hardware store. That holds the large filter ring without distorting it while you apply downward pressure and turn the lens. A piece of rubber gasket materialmight work too, found in any automotive store.

The entire shade ring unscrews in the same direction as the front ring. Trying to unscrew the front ring with it mounted on the lens just unscrews the entire assembly from the lens. I'll test the lubricant on a small section to make certain it doesn't harm the finish before going full tilt.

Bless you. I'll give it a try.

My problem is I can't get the front of the "shade" ring to unscrew. I bought a 93mm adapter ring for my Pro Shade so I could use it on the 40 but can't split the shade assembly so I can screw it on. I've tried a large set of filter wrenches with no luck. Have heated up the ring in hot water, too. Any suggestions?