Circ. pol dunked in sal****er. Cleaning?

On vacation I managed to drop a circ pol into the water. I recovered it
about 20 minutes later (was under a dock and hard to access).

It is the Minolta circular polarizer from the 90's. (72mm).

I immediately rinsed it off and let it dry, expecting there to have been
water seepage into the pol between the two elements.

Yesterday I took the polarizer apart, to a degree.

The outer ring and the inner pressure ring segment came off with no
problem, but I can't separate the two elements. I also suspect that NO
WATER entered between the two elements at all. I certainly can't see any
"stain" or anything in there...

Anyone with advice on what (not) to do?

I'm leaning to cleaning the accessible surfaces and not attempting to
separate the elements.

"Alan Browne" wrote in message
...
On vacation I managed to drop a circ pol into the water. I recovered it
about 20 minutes later (was under a dock and hard to access).

It is the Minolta circular polarizer from the 90's. (72mm).

I immediately rinsed it off and let it dry, expecting there to have been
water seepage into the pol between the two elements.

Yesterday I took the polarizer apart, to a degree.

The outer ring and the inner pressure ring segment came off with no
problem, but I can't separate the two elements. I also suspect that NO
WATER entered between the two elements at all. I certainly can't see any
"stain" or anything in there...

Anyone with advice on what (not) to do?

I'm leaning to cleaning the accessible surfaces and not attempting to
separate the elements.


I would put the polarizer in a sealed plastic bag with some silica gel for
about a day, just to make sure there is no hidden dampness.

Just my thoughts as I am paranoid about water & electronics.

--
Peter

"Alan Browne" wrote in message
...
On vacation I managed to drop a circ pol into the water. I recovered it
about 20 minutes later (was under a dock and hard to access).

It is the Minolta circular polarizer from the 90's. (72mm).

I immediately rinsed it off and let it dry, expecting there to have been
water seepage into the pol between the two elements.

Yesterday I took the polarizer apart, to a degree.

The outer ring and the inner pressure ring segment came off with no
problem, but I can't separate the two elements. I also suspect that NO
WATER entered between the two elements at all. I certainly can't see any
"stain" or anything in there...

Anyone with advice on what (not) to do?

I'm leaning to cleaning the accessible surfaces and not attempting to
separate the elements.

Bingo! - "If it ain't broke, don't fix it."

On Thu, 21 Jan 2010 17:23:30 -0500, "Peter"
wrote:

"Alan Browne" wrote in message
...
On vacation I managed to drop a circ pol into the water. I recovered it
about 20 minutes later (was under a dock and hard to access).

It is the Minolta circular polarizer from the 90's. (72mm).

I immediately rinsed it off and let it dry, expecting there to have been
water seepage into the pol between the two elements.

Yesterday I took the polarizer apart, to a degree.

The outer ring and the inner pressure ring segment came off with no
problem, but I can't separate the two elements. I also suspect that NO
WATER entered between the two elements at all. I certainly can't see any
"stain" or anything in there...

Anyone with advice on what (not) to do?

I'm leaning to cleaning the accessible surfaces and not attempting to
separate the elements.


I would put the polarizer in a sealed plastic bag with some silica gel for
about a day, just to make sure there is no hidden dampness.

Rice grains will work if there's no silica gel available.

Just my thoughts as I am paranoid about water & electronics.

--
Tony Cooper - Orlando, Florida

"Bill Graham" wrote in message
...

"Alan Browne" wrote in message
...
On vacation I managed to drop a circ pol into the water. I recovered it
about 20 minutes later (was under a dock and hard to access).

It is the Minolta circular polarizer from the 90's. (72mm).

I immediately rinsed it off and let it dry, expecting there to have been
water seepage into the pol between the two elements.

Yesterday I took the polarizer apart, to a degree.

The outer ring and the inner pressure ring segment came off with no
problem, but I can't separate the two elements. I also suspect that NO
WATER entered between the two elements at all. I certainly can't see any
"stain" or anything in there...

Anyone with advice on what (not) to do?

I'm leaning to cleaning the accessible surfaces and not attempting to
separate the elements.

Bingo! - "If it ain't broke, don't fix it."

Yes, but if water gets from there into his LNB it will break and its a lot
more expensive.

OTOH IIRC these [de]polarisers are very dumb and consist of a lump of
plastic in a the waveguide..

"R. Mark Clayton" wrote in message
...

"Bill Graham" wrote in message
...

"Alan Browne" wrote in message
...
On vacation I managed to drop a circ pol into the water. I recovered it

Ignore previous reply about circular polarisers in satellite reception head
ends...

"tony cooper" wrote in message
...
On Thu, 21 Jan 2010 17:23:30 -0500, "Peter"
wrote:

"Alan Browne" wrote in message
...
On vacation I managed to drop a circ pol into the water. I recovered it
about 20 minutes later (was under a dock and hard to access).

It is the Minolta circular polarizer from the 90's. (72mm).

I immediately rinsed it off and let it dry, expecting there to have been
water seepage into the pol between the two elements.

Yesterday I took the polarizer apart, to a degree.

The outer ring and the inner pressure ring segment came off with no
problem, but I can't separate the two elements. I also suspect that NO
WATER entered between the two elements at all. I certainly can't see any
"stain" or anything in there...

Anyone with advice on what (not) to do?

I'm leaning to cleaning the accessible surfaces and not attempting to
separate the elements.


I would put the polarizer in a sealed plastic bag with some silica gel for
about a day, just to make sure there is no hidden dampness.

Rice grains will work if there's no silica gel available.
--
Tony Cooper - Orlando, Florida

good tip, thanks :-)

--
[This comment is no longer available due to a copyright claim by Church of
Scientology International]
"I like your Christ. I do not like your Christians. They are so unlike your
Christ." Gandhi

"Alan Browne" wrote in message
...
On vacation I managed to drop a circ pol into the water. I recovered
it about 20 minutes later (was under a dock and hard to access).

It is the Minolta circular polarizer from the 90's. (72mm).

I immediately rinsed it off and let it dry, expecting there to have
been water seepage into the pol between the two elements.

Yesterday I took the polarizer apart, to a degree.

The outer ring and the inner pressure ring segment came off with no
problem, but I can't separate the two elements. I also suspect that
NO WATER entered between the two elements at all. I certainly can't
see any "stain" or anything in there...

Anyone with advice on what (not) to do?

I'm leaning to cleaning the accessible surfaces and not attempting to
separate the elements.

Alan,

Some CP's are made from 2 pieces of glass with the polarizing film
sandwiched between them. Do not try to separate the two halves or you
will ruin the polarizer. As others suggested, dry it out. If you see
seepage of water on the film, there is nothing you can do except buy a
new one.

Now there may be a new method of making these but even the last one I
bought a few months ago ($120 for a 77mm) is made that way.

Bob S.

"John A." wrote in message
...
On Fri, 22 Jan 2010 11:38:43 +1100, "Atheist Chaplain"
wrote:

"tony cooper" wrote in message
. ..
On Thu, 21 Jan 2010 17:23:30 -0500, "Peter"
wrote:

"Alan Browne" wrote in message
...
On vacation I managed to drop a circ pol into the water. I recovered
it
about 20 minutes later (was under a dock and hard to access).

It is the Minolta circular polarizer from the 90's. (72mm).

I immediately rinsed it off and let it dry, expecting there to have
been
water seepage into the pol between the two elements.

Yesterday I took the polarizer apart, to a degree.

The outer ring and the inner pressure ring segment came off with no
problem, but I can't separate the two elements. I also suspect that NO
WATER entered between the two elements at all. I certainly can't see
any
"stain" or anything in there...

Anyone with advice on what (not) to do?

I'm leaning to cleaning the accessible surfaces and not attempting to
separate the elements.


I would put the polarizer in a sealed plastic bag with some silica gel
for
about a day, just to make sure there is no hidden dampness.

Rice grains will work if there's no silica gel available.
--
Tony Cooper - Orlando, Florida

good tip, thanks :-)

Just remember to use uncooked rice.

that would present a problem or two I imagine ;-)

--
[This comment is no longer available due to a copyright claim by Church of
Scientology International]
"I like your Christ. I do not like your Christians. They are so unlike your
Christ." Gandhi

On 21/01/2010 23:23, Peter wrote:
Just my thoughts as I am paranoid about water & electronics.

Inquiring minds want to known: where did you find that electronic
polarizer? Honk-Kong merchant on eBay?

--
Bertrand