Removing stripped OLPF screw?

[Marcus Friedlander]

Hey everyone,

I'm in a jam and need some help. One of the screws that's holding my OLPF in is stripped and I can't for the life of me get it out. Any suggestions from someone who has dealt with this before? Thanks!

 

[Steve DiMaggio]

have you tried to put a rubber band in the stripped out part and turn using tool

 

[Marcus Friedlander]

Hey Steve. Yes I did but I still couldn't get any tension on the screw

 

[Kyle Kelley]

This happened to me recently and I tried a million different solutions -- eventually I just took it to AbelCine and they removed the stripped screw. I'd recommend just taking it to whatever local rental house you have that also has a service department.

 

[Björn Benckert]

This might sound crazy but I done the this on the red one EF mount, when some had over tighten the screws on it and it works like a charm.

Do this take gaffer tape tape up the olpf hole and all other parts around the olpf etc where dust can get in. If you want to be super carefull then tape up the whole front of camera and only le the stuck little screw be visible.


Then get a Hand electric drill and a drill bit that is small but still thicker than the threaded part of the screw.
Put the camera on a table or such with down side down etc so sensor is facing horizon. (just so when you drill the dust does not fall into the camera but down to the table)

Then really slowly and carefully drill on the head of the screw, and very important run the drill in reverse, i.e so the drill bit spinns counter clockwise. This way you are not tightning the screw further.

Soon enough the head of the screw will fall off. and you can then remove the olpf. And then you can also easily remove the threaded part of the screw with your fingers as it no longer have any force on its threads. If not with your finger a pair of plyers will work but I´m pretty sure thats not needed.

Then you just dust it all of, remove the tape and go buy a replacement screw. But I would not worry so much to shoot with only three screws, Im sure the olpf stays in plays any way.

And it goes without saying those screws should not be overtightened. But I think that lesson you allready learned.

 

[Robert Hart]

I assume the screw is spinning and not raising on its thread. I am not familiar with a close-up view of the OPLF fixture so do not pay too much heed. If the OPLF is loose, you might try to feed a thin piece of paper into the gap, between the inner surface and the camera body, then work it along towards the screw so that part of the OPLF overhangs the paper. The thin piece of paper is going to behave like a rocking pivot. With gentle pressure on the overhang, not too much pressure or you may crack the OPLF, try unscrewing the screw once more. It may rise high enough in the hole that you can feed a folded thin piece of paper and use it is a pivot as before, feeding incrementally more layers of paper until the screwhead is high enough you can grasp it with tweezers and draw it out of the hole.

 

[Marcus Friedlander]

Thanks for the advice everyone! I'm just going to bring it in to Able and have them take care of it (and also be much more careful in the future :smile5

Thanks again!