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

"Ofnuts" wrote in message
...
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?

--
Hi Bertrand,
He didn't say the Polarizer was electronic.
The word her is * paranoid * about water getting into things ;-) ... but of
course, you did understand...
Take care,
Marcel

"celcius" wrote in message
...


"Ofnuts" wrote in message
...
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?

--
Hi Bertrand,
He didn't say the Polarizer was electronic.
The word her is * paranoid * about water getting into things ;-) ... but
of course, you did understand...
Take care,
Marcel





I did not plan to answer the obvious misinterpretation.

--
Peter

On 10-01-21 20:34 , BobS wrote:
"Alan 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.

Ah. That explains what somebody replied on another forum. Thanks.

On 10-01-21 19:24 , R. Mark Clayton wrote:
"R. Mark wrote in message
...

"Bill wrote in message
...

"Alan 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...

I was wondering what was happening in your head end ...

In article , Alan Browne
writes
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.

Do NOT attempt to separate the two layers of the CP - ever. You will
damage both layers by breaking the optical cement that hold them
together.

If there was any damage of the cement bond between these layers then it
would be clearly visible and irreparable. You have been lucky, so check
out *with* your winnings while you still have them!

Wash what you have disassembled in clean water, apply lube and
reassemble.
--
Kennedy
Yes, Socrates himself is particularly missed;
A lovely little thinker, but a bugger when he's ****ed.
Python Philosophers (replace 'nospam' with 'kennedym' when replying)

"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
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..

Well, it certainly doesn't hurt to dry it out well, and store it with silica
gel of some other drying agent. but I am reminded of the many times as a
repairman, I was posed with an intermittent problem, where the customer
said......"It failed yesterday, so can you fix it" ? Well, other than
checking out those things, (adjustments and etc. ) that might cause the
problem, there is really little that can be done unless the machine if
failing frequently.It is difficult to find the cause of an intermittent
problem for this reason.

On 10-01-22 19:41 , Kennedy McEwen wrote:
In article , Alan Browne
writes
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.

Do NOT attempt to separate the two layers of the CP - ever. You will
damage both layers by breaking the optical cement that hold them together.

If there was any damage of the cement bond between these layers then it
would be clearly visible and irreparable. You have been lucky, so check
out *with* your winnings while you still have them!

Wash what you have disassembled in clean water, apply lube and reassemble.

Thanks, exactly where I'm at. I'll clean with alcohol, then distilled
water, reassemble. The existing lube is clean should be sufficient (and
I'll not clean it away with the alcohol.

On 10-01-21 17:16 , Alan Browne wrote:
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.

Thanks to those who warned me off disassembling further than the bezel ring.

All clean and working fine now.

-alcohol, then
-distilled water, then
-Kodak lens cleaning fluid did the trick.

The original lube looked clean, so I just left it in its groove. I did
bend the bezel clip ring a little (it is understandably weak where the
screw tapped holed are) but still turns smoothly.

"Alan Browne" wrote in message
...
On 10-01-21 19:24 , R. Mark Clayton wrote:
"R. Mark wrote in message
...

"Bill wrote in message
...

"Alan 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...

I was wondering what was happening in your head end ...

I missed which group I was in - the next one in my newsgroup list is
rec.video.satellite.europe.

On 10-01-24 9:17 , R. Mark Clayton wrote:
"Alan wrote in message
...
On 10-01-21 19:24 , R. Mark Clayton wrote:
"R. Mark wrote in message
...

"Bill wrote in message
...

"Alan 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...

I was wondering what was happening in your head end ...

I missed which group I was in - the next one in my newsgroup list is
rec.video.satellite.europe.

I know the feeling...