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Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User
Donnie D
super member
Reged: 03/21/08
Posts: 121
Loc: Madison, Mississippi
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For the first time, I noticed that on the right side of my Celestron Binoculars, I have this hazy effect. I noticed this when looking at Jupiter the other night. It is not as apparent when looking at other objects, etc.
Actually, I really did not pay that much attention to it until I had a friend over the other night when he was using the same pair. Well, he needed to adjust the focus for himself and when he was finished, I then obviously had to re-focus them. It wasn't until I was adjusting the right eyepiece using one eye until I saw that it by itself had this haze or foggy halo around Jupiter. So my concern is that I think that something might be wrong with the internal optics as I had just cleaned the exterior optics with a camera lens type of cleaner solution the night before. Is it possible that I have some type of dirty dried condensation on the inside? I don't know - I am not aware enough about Binoculars to know if this is possible. If it is, can this be cleaned by myself?
Thanks for any help
Donnie
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Celestron SkyMaster 15x70
MEADE DS2114
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KennyJ
Reged: 04/27/03
Posts: 12895
Loc: Lancashire UK
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Donnie ,
I would guess the foggy halo could indeed be a result of your cleaning process , and not even necessarily on the INSIDE -- or due to some other temporary condition .
Holding the objectives and eyepieces up to bright light should help you to see the cause of the problem .
Try gentle circular dusting of the eyepiece and objective on the effected side with a new , clean , microfibre optics cloth .
If that doesn't change anything , try a minute or two's gentle application of forced air from a hair dryer , set low , from a distance of around arm's length , and see if that clears anything away .
Kenny
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Nikon 10 x 42 Superior E
Swift Audubon Kestrel 10 x 50
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94bamf
professor emeritus
Reged: 12/15/08
Posts: 707
Loc: Kansas City,Mo
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Somebody correct me if I am wrong, but what I have noticed 9 times out of 10 with binoculars/telescopes, etc, is debris/dirt/grease/goo, etc on the eyepiece is MUCH more noticeable than derbis on the objective when viewing an object. If they seemed to work ok before, I would look hard at the eyepieces for dirt/derbis..
My first guess however, would be that the right eyepiece fogged over as you where trying to focus it. Usually when dew forms on the eyepieces it makes bright objects have a foggy halo.. Many times the dew/condensation can form when you accidently breath of the lens, or if you were outside for a long time, actual dew might have started to form. I have even had times when the eyepiece lens on a telescope or binoculars will fog over just from the heat of your eye or something. If it was dew or condensation, the problem has probably already fixed itself. I would try testing the binoculars again on Jupiter or on a bright streetlight if it is cloudy.
Ken
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Telescopes:
Celestron C6 SCT on CG4 mount
Skywatcher 8 inch F/5 Newt on a GEM
Celestron 8 inch Starhopper Dob
Celestron Oynx 80ED
Celestron C130 Mak
Celestron C102HD
Binoculars:
Nikon 7x35 Action
Nikon 7x50 Action
Zen Ray Summit 10x42
Celestron 10x42 Noble
Orion 10x50 Scenix
Celestron 10x50 Noble
Pentax 12x50 PCF WP II
Celestron 15x70 Skymaster
Oberwerk 20x60
Zhumell 20x80
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Donnie D
super member
Reged: 03/21/08
Posts: 121
Loc: Madison, Mississippi
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Quote:
My first guess however, would be that the right eyepiece fogged over as you where trying to focus it. Usually when dew forms on the eyepieces it makes bright objects have a foggy halo.. Many times the dew/condensation can form when you accidently breath of the lens, or if you were outside for a long time, actual dew might have started to form. Ken
Thanks everyone - I will look into both of these and try again. It might have been the heat from one of bodies. I will check it out again and look into the cleanliness of right eyepiece (the diopter adjust)
Donnie
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Celestron SkyMaster 15x70
MEADE DS2114
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GlennLeDrew
Pooh-Bah
Reged: 06/18/08
Posts: 1269
Loc: Ottawa, Ontario, Canada
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It's not the *heat* from our eyes/bodies which can cause condensation. It's the *moisture*. Our warm bodies render a higher partial pressure of water vapour near the skin as compared to the surrounding colder air. The result; higher humidity in the immediate vicinity, *even if* we were to completely contain our breathing in some form of re-breather system.
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Home-made 11X50 right angle bino, 8.1 deg. FOV
Modified 26X100 bino, 3.5 deg. FOV
Home-made Mk II RA bino, using interchangeable objectives and eyepieces
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94bamf
professor emeritus
Reged: 12/15/08
Posts: 707
Loc: Kansas City,Mo
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Quote:
It's not the *heat* from our eyes/bodies which can cause condensation. It's the *moisture*. Our warm bodies render a higher partial pressure of water vapour near the skin as compared to the surrounding colder air. The result; higher humidity in the immediate vicinity, *even if* we were to completely contain our breathing in some form of re-breather system.
Is there anything you don't know Glenn? 
That was why I added the "or something" to that. 
Thanks for the info..
Ken
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Telescopes:
Celestron C6 SCT on CG4 mount
Skywatcher 8 inch F/5 Newt on a GEM
Celestron 8 inch Starhopper Dob
Celestron Oynx 80ED
Celestron C130 Mak
Celestron C102HD
Binoculars:
Nikon 7x35 Action
Nikon 7x50 Action
Zen Ray Summit 10x42
Celestron 10x42 Noble
Orion 10x50 Scenix
Celestron 10x50 Noble
Pentax 12x50 PCF WP II
Celestron 15x70 Skymaster
Oberwerk 20x60
Zhumell 20x80
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