Anonymous
Unregistered
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Alm
Another poster mentioned cleaning the mirror of a Newt scope. They live near the ocean, and after observing, the mirror has a salt film on it. They clean it buy pouring distilled water on it and blow drying it with a squeeze bulb.
Any other recomendations?
I plan on going to the ocean and want to take my Nighthawk.
How would you recomend cleaning the lense for this scope.
Thanks
Keith
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Scott Beith
SRF
Reged: 11/26/03
Posts: 33098
Loc: Gulfport, MS
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Hey Keith,
Are you coming to see us in Gulfport?
Scott
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  Scott
"The only thing necessary for the triumph of evil is for good men to do nothing." -- Edmund Burke.
"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell
"The measure of a man’s greatness is not determined by what he accomplishes for himself, but by what he accomplishes for others.” -- Some Bald Guy
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Anonymous
Unregistered
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Scott;
Not unless Uncle Sam sends me to Ft Rucker. And that shouldn't happen anytime soon. 
Keith
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Scott Beith
SRF
Reged: 11/26/03
Posts: 33098
Loc: Gulfport, MS
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Keith,
Just wash the whole OTA in Salt Water, let it dry, and then scrub the remaining salt off of the objective with 60 grit sandpaper. 
Scott
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Scott
"The only thing necessary for the triumph of evil is for good men to do nothing." -- Edmund Burke.
"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell
"The measure of a man’s greatness is not determined by what he accomplishes for himself, but by what he accomplishes for others.” -- Some Bald Guy
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Bill Grass
Prince Regent
Reged: 10/07/03
Posts: 11652
Loc: Denham Springs, LA
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EEEWWWW!!! I could actually feel the pain with that recommendation, Scott!! 
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Scott Beith
SRF
Reged: 11/26/03
Posts: 33098
Loc: Gulfport, MS
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Doesn't everybody use that method?
I always wondered why other people's scopes worked better than mine.
Scott
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Scott
"The only thing necessary for the triumph of evil is for good men to do nothing." -- Edmund Burke.
"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell
"The measure of a man’s greatness is not determined by what he accomplishes for himself, but by what he accomplishes for others.” -- Some Bald Guy
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Anonymous
Unregistered
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Quote:
and then scrub the remaining salt off of the objective with 60 grit sandpaper.
Belt sander or random orbital? 
Warning: Children do not attempt this at home.
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Anonymous
Unregistered
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That advice outta keep AlM busy for a long time!
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Anonymous
Unregistered
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And to think, I came to this thread thinking I was going to get a real answer!
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BCB
Post Laureate
Reged: 11/24/03
Posts: 3834
Loc: Look over your shoulder
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LOL
You and me both Tom. 
I spent the better portion of 2 hrs cleaning the doublet in the one given to me.. I still think it could be done better tho, but it's 100%better then what it was. 
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Mark
Making people sorry they asked since 1967
Astro-Tech 102ED
Orion 8" F5 Newt w/Moonlight CR-2 focuser
SVP mount w/Meade 497 Autostar GOTO mod
Treeline Observatory
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Scott Beith
SRF
Reged: 11/26/03
Posts: 33098
Loc: Gulfport, MS
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Sorry Tom,
I am not smart enough to give you a "real" answer - at least not one that wouldn't actually damage the scope.
The best I have heard is to use dry air to remove the majority of the dust, and then a "lens pen" for actual cleaning. I have read that unless the scope's objective is really bad, don't clean it.
AlM or another optics guru can answer better than I can. I have no idea what salt would do to coatings.
Scott
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Scott
"The only thing necessary for the triumph of evil is for good men to do nothing." -- Edmund Burke.
"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell
"The measure of a man’s greatness is not determined by what he accomplishes for himself, but by what he accomplishes for others.” -- Some Bald Guy
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Anonymous
Unregistered
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I forgot to use my magic smiley in my post...so I'll use two now (just in case!)
Personally, I would love to have AJ's problem. I go to St. Aug. every time I go to FL (my brother lives in JAX, as do my wife's sisters, her folks are in the Orlando area and my folks are in the right part of FL - the panhandle!)
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Anonymous
Unregistered
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Hi,
Cleaning optics to often is the greatest cause of damage. Salt spray can be very damaging. When the dew forms on the optics it will dissolve much of the salt and other materials. Upon drying ut will leave behind a fine residue.
Coatings are crystalline in structure and residue may become locked into that structure upon drying.
I avoid dew forming on my optics. I place booties over the dew cap and part-way down the tube. This prevents excessive cooling, which leads to dewing.
Before bringiing the scope in, I cover and seal with plastics bags and then bring it in. Do not bring the optics in unsealed. The higher moisture content of the indoors may surely form on the cold lenses.
Al M
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Anonymous
Unregistered
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Hi,
I don't observe in dusty areas or where salt spray is present.
Most of your cleaning should only involve blowing dust off.
For a minor smudge or finger print, I just lightly blow and fog the area and carefully wipe it off with Q-Tips.
Al M
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Anonymous
Unregistered
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Quote:
I avoid dew forming on my optics. I place booties over the dew cap and part-way down the tube. This prevents excessive cooling, which leads to dewing.
AlM
Is this what you are talking about?
Keith
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Anonymous
Unregistered
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Hi Keith,
That looks great! Nice color too!
You'll like the effect and its so simple. So you have the white. Now all you need is an EQ6!
Al M
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Anonymous
Unregistered
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AlM;
Ok I'll give it a try. Stole one of my wife's leg warmers.
Thanks for the hint.
Did you get the PM's I sent you?
Keith
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Tom L
Reged: 01/07/04
Posts: 29817
Loc: Sunny Oregon
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I'm glad to hear it wasn't your leg warmer, Keith! 
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Tom 
Tele Vue 102mm f/8.6 on an EzTouch
Vixen 80mm f/5 A80SSWT on a grab-n-go mount
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