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MA25 question


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#1 sansouci01

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Posted 25 May 2014 - 07:31 AM

I was cleaning my eyepieces and took apart my MA25. I noticed that one of the glass lenses were cloudy. Seems like it's inside the glass because it doesn't come off. I'm sure this not  normal...is it?



#2 MistrBadgr

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Posted 25 May 2014 - 11:21 AM

If looking though the lens, it is truly cloudy......no,that is not normal.  If it is glare from light bouncing off the ground side of the lens, that can be remedied by blackening the side surface with a Sharpie or some other black marker.  Just be careful and not get any on the front or rear surfaces.  It does not come off.

 

Bill Steen


Bill Steen, Sky Hunters' Haven Observatory, Broken Arrow, Oklahoma

#3 sansouci01

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Posted 25 May 2014 - 05:32 PM

thanks Bill.

I will do the sharpie thing and see if that's it. If it is really cloudy, what could be the cause?



#4 MistrBadgr

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Posted 25 May 2014 - 06:33 PM

If water had ever gotten into the eyepiece, you might have something growing on the surface.  But that kind of thing is normally black or brown.

 

Other than that, it would have to be some chemical reaction with a coating.

 

Hopefully, it is glare that you are seeing from the white ground glass edge/side of the lens.

 

Bill Steen


Bill Steen, Sky Hunters' Haven Observatory, Broken Arrow, Oklahoma




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