FD 50 1.4 Disassembly help!

Hey guys...

Please refer to http://rick_oleson.tripod.com/index-161.html for reference.

I'm try to clean my aperture blades as they do not close down anymore. How do I get that top section off? For the life of my I can't get it off. I assumed where it said "use rubber pad wrench" i assume that its a threaded part but I can't get that darn thing off. Any advice as to I do not have a rubber pad wrench. Thanks.

Justin

jgoeden said:

Hey guys...

Please refer to http://rick_oleson.tripod.com/index-161.html for reference.

I'm try to clean my aperture blades as they do not close down anymore. How do I get that top section off? For the life of my I can't get it off. I assumed where it said "use rubber pad wrench" i assume that its a threaded part but I can't get that darn thing off. Any advice as to I do not have a rubber pad wrench. Thanks.

Justin

Click to expand...

Justin,

As you probably know, they are advising you use this: Dead Link Removed

but anything that is fairly grippy and firm should be able to spin it off.

A firm rubber sink stopper of the right size might work as long as it doesn't touch/abrade the lens surface. Might try making it a bit more "grippy" by wiping it down with alcohol and drying it off just before you try to unscrew the ring.

Have a look at the threads on the inside of the barrel and make sure they are not gunked-up. If they are, you might be able to squirt a few drops of alcohol in there to try to free it up.

Worth a try...

You can use a rubber stopper from the hadware store. Take the lens with to check the size. I've got around a half dozen of different diameters.
You will have to be careful of the front element. Some of the 1.4's have a more protruding front element. You will find that it may be possible to cant the stopper at an angle & just use the edge to get a grip.