I hate to say that your blanket statement that "Loc-tite is extremely
corrosive (that's why it works)." is WRONG but it is! First "Loctite" is a
brand name for many, many products. They run from thread lockers to
lubricants. There are epoxies, gasket materials, anti-seize, rust proofers,
and even hand cleaners.
If you are referring to thread lockers; then retention is done by setting up
by the exclusion of oxygen. You can precoat and then assemble years later
and it still works. One statement from the factory manual says that it
eliminates galvanic corrosion in aluminum and magnesium. These thread
lockers meet strict Mil-specs (MIL-S-46163A) so they can be used in miltary
and aviation applications. They are FAA approved for aviation use. They
come is various strengths, and as they get stronger, they are removable by
the simple application of heat. But the low strengths are easily removable
with normal hand tools in the same order of lock washers without the limited
torque range.
Cy Galley, TC - Chair, Emergency Aircraft Repair, Oshkosh
----- Original Message -----
From: "PAUL STENQUIST" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, April 12, 2001 8:30 PM
Subject: Re: screwmount adapters: how to keep them on?
> The adapter is supposed to stay in the camera body. There's a spring
> clip that keeps it there. You can use a screwdriver, fingernail, knife,
> or other similar object to release the clip and remove the adapter. You
> can mount an adapter on each lens and remove the locking clip from the
> adapters. I would just screw the adapter on snugly. It should stay put.
> Loc-tite is extremely corrosive (that's why it works). I wouldn't want
> to get it anywhere near a camera or lens. (You can also buy yourself a
> Spotmatic F and throw away the adapters.)
> Paul
>
> [EMAIL PROTECTED] wrote:
> >
> > Now that I have acquired ttwo Vivitar Series 1 telephotos--the 135/2.3
and
> > the 200/3.0--I find myself annoyed by the M42 screwmount-to-K mount
> > adapters. When I set about to remove the lens, the adapter stays in the
> > Super Program body; the lens unscrews from the adapter. It's VERY
annoying
> > to have to extract the adapter, with whatever tools I have available, so
> > that I can fit the body with another lens. (That is the idea of
> > interchangeable lenses, isn't it?) Last night I used a screwdriver, but
I
> > realize this is a no-no.
> >
> > I had hoped that by using genuine Pentax-brand adapters I wouldn't face
> > this problem, a problem that I first experienced last year when using a
> > Samigon-brand adapter to fit an 85/1.8 screwmount lens to my Super
Program.
> > The Samigon actually came with a little tool to extract the adapter.
> >
> > If I'm going to have this problem each time he removes the lens, I might
as
> > well dedicate a body to it. If I decided to do that, I could have bought
> > these lenses in their multicoated versions in Minolta mount, or Canon,
or
> > Olympus. The screwmount units--certainly the 200/3--appear to be
> > single-coated.
> >
> > I'm tempted to use Loc-Tite to more or less permanently keep each
adapter
> > on the lens.
> >
> > Comments? Suggestions?
> >
> > Paul Franklin Stregevsky
> >
> > -
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> > go to http://www.pdml.net and follow the directions. Don't forget to
> > visit the Pentax Users' Gallery at http://pug.komkon.org .
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