Orion Finder needs rubber ring

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johnyjf Great Britain
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Orion Finder needs rubber ring

#1

Post by johnyjf »


I have an Orion right angle right image finder which uses the usual combination of 3 screws and a rubber ring to locate the Optical tube and enable the viewing direction to be adjusted, The rubber ring is disintegrating most probably due to age. Does anyone have a recommendation for a replacement? the finder is in VGC otherwise and I would like to be able to use it properly. Thanks for any inputs!
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Lady Fraktor Slovakia
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Re: Orion Finder needs rubber ring

#2

Post by Lady Fraktor »


Plumbing section of the local hardware shop will have various diameter/ thickness rubber o-rings.
Take your old one along and match it.
Hardware and craft shops are great astro accessory outlets :)
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Bigzmey United States of America
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Re: Orion Finder needs rubber ring

#3

Post by Bigzmey »


I would check hardware stores first as Lady Fraktor suggested.

Agena has it, but with shipping to UK that would a one expensive o-ring!

https://agenaastro.com/agena-rubber-o-r ... nders.html
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JayTee United States of America
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Re: Orion Finder needs rubber ring

#4

Post by JayTee »


Maybe they have these or other similar products on the UK Amazon.

∞ Primary Scopes: #1: Celestron CPC1100 #2: 8" f/7.5 Dob #3: CR150HD f/8 6" frac
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
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pakarinen United States of America
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Re: Orion Finder needs rubber ring

#5

Post by pakarinen »


The O-ring on my Orion finder slipped down the tube. I never noticed it was out of place - didn't cause a problem that I could see. YMMV.
But I also use regular cap head screws with a bit of duck tape to protect tubes instead of buying nylon-tipped screws, so I am a barbarian. :shhh:
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Richard South Africa
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Re: Orion Finder needs rubber ring

#6

Post by Richard »


If the old one has disintegrated just take the finder to the hardware or hobby shop, failing that an elastic band does the job
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Piet Le Roux South Africa
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Re: Orion Finder needs rubber ring

#7

Post by Piet Le Roux »


To get a rubber o-ring that fits perfectly on the finder scope of a Star Watcher that I had I took the finder scope to a shop that specialises in o-rings, I gave it to the lady and explained that it must fit in the grove around the finder and be about 2mm thick, she measured it and came back with a perfect fit!
Main Equipment : Tele Vue 27mm Panoptic, 7&13mm Nagler, Big Barlow : 8" Meade LX90ACF with Meade 2.0" Enhanced Diagonal : Camera Fuji XT100
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johnyjf Great Britain
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Re: Orion Finder needs rubber ring

#8

Post by johnyjf »


Thanks for all your replies, there are several useful suggestion here, I'll let you know how I get on!
:observer:
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johnyjf Great Britain
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Re: Orion Finder needs rubber ring

#9

Post by johnyjf »


I found an equivalent of the Agena ring on eBay and have ordered a pack of 2. If any good I'll post the link.
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johnyjf Great Britain
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Re: Orion Finder needs rubber ring

#10

Post by johnyjf »


I fitted the new rubber ring last night and it appears to be just the job. You can ind hem at https://www.ebay.co.uk/itm/185308019712 ... 3182103114. Clear skies to all!
:observer:
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