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EON 120ED dew shield retracts when pointed at zenith

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#1 6opuc9

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Posted 19 June 2019 - 12:23 AM

Orion EON 120ED owners,

 

Did you ever have issues with the dew shield unintended retracting on its own when pointed vertically? The one I acquired this spring tends to have this issue sometimes when positioned near zenith. It slides smooth and easy, and sometimes I notice it slowly slides back on it's own, given its heft. Not every time, but when I least expect (or desire) it to.

 

My guess is that the felt may be a bit worn, but before I start messing with it I was hoping to get some advice, and possibly hear of easy fixes that others may have used.

 

 

 

Clear skies to all!



#2 Jon Isaacs

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Posted 19 June 2019 - 09:03 AM

Boris:

 

A simple fix is just to put black rubber band or something elastic that can be stretched and slipped over the dew shield.  When you extend the dew shield, you slide the rubber band up against the bottom of the dew shield and normally that will prevent the dew shield from slipping.

 

jon


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#3 6opuc9

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Posted 19 June 2019 - 10:35 AM

Thanks Jon. That's a great idea, I'll do that as a temporary solution. In the future will probably need to pull it off and see if it needs new felt, or maybe some kind of additional ring of material installed around the lens cell to make it fit tighter.



#4 RAKing

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Posted 19 June 2019 - 02:21 PM

Also, depending on your climate, you can put a dew strap on the OTA just behind the dew shield.  Although I have never had the dew shield slide down on its own, I have to protect my EON from dew sometimes here in humid Northern Virginia.

 

Cheers,

 

Ron


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#5 ris242

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Posted 19 June 2019 - 04:20 PM

Boris:

 

A simple fix is just to put black rubber band or something elastic that can be stretched and slipped over the dew shield.  When you extend the dew shield, you slide the rubber band up against the bottom of the dew shield and normally that will prevent the dew shield from slipping.

 

jon

 

After reading that, I thought of others, without rubber bands reaching into the wife's drawer.......and all of a sudden there would be photos of scopes with undergarments on, appearing on cloudy nights. lol.gif


Edited by ris242, 19 June 2019 - 04:38 PM.


#6 6opuc9

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Posted 19 June 2019 - 07:18 PM

After reading that, I thought of others, without rubber bands reaching into the wife's drawer.......and all of a sudden there would be photos of scopes with undergarments on, appearing on cloudy nights. lol.gif

My EON 120ED is pretty enough to rock some lingerie no questions asked! lol.gif


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#7 6opuc9

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Posted 20 June 2019 - 09:41 AM

Tried the rubber band idea, it really works great. Will need to figure out refelting it in the future, but for now it eliminates the issue. Thank you!

#8 SteveG

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Posted 20 June 2019 - 01:10 PM

Tried the rubber band idea, it really works great. Will need to figure out refelting it in the future, but for now it eliminates the issue. Thank you!

The real fix is to unscrew the dew shield from the ring at the cell, add some felt thickness, and reassemble.


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