dgs©
Postmaster
Reged: 03/29/04
Posts: 13903
Loc: West Monroe, Louisiana
|
|
My 10x50 Orion Ultraviews have what looks to be a small shaving of aluminum (or other metal) on the inside surface of one of the objectives. It is rather small (I'll try to post a picture later), and so far, hasn't really been bothersome to me. That is to say, I only notice it when I look at the objective and see this bit of silver peering back at me.
Given the price of these binoculars, I'm not sure it's worth the cost of shipping them off and paying to have the offending bit removed. It's not like they are super fantastic binoculars... I think of them as middle of the road, decent at that price binoculars.
--------------------
- david
8"Ø Newtonian on SVP, Moonlite CR2, Telrad
PST Oberwerk Ultra 15x70 Orion Ultraview 10×50
Hand-me-down Sears Refractor (Discoverer) 60mm×900mm
"What we have done for ourselves alone dies with us; what we have done for others and the world, remains and is immortal." --Albert Pike
|
EdZ
Professor EdZ
Reged: 02/15/02
Posts: 12581
Loc: Cumberland, R I , USA42N71.4W
|
|
The objective cones of the ultraview will screw off. just be very careful to not cross thread when screwing back on.
edz
--------------------
Teach a kid something today. The feeling you'll get is one of life's greatest rewards.
member#21
|
edwincjones
Post Laureate
Reged: 04/10/04
Posts: 4423
|
|
what is the problem?
they work,
the shaving donot interfear with using,
doesnot seem to be getting worse
ignore and live with until they start interfearing with view, then fix or replace
unless, it is big enough to damage optics
edj
--------------------
n w arkansas
Binocular, Solar, General Amateur Astronomy
|
edwincjones
Post Laureate
Reged: 04/10/04
Posts: 4423
|
|
edz's suggestion seems better than mine
edj
--------------------
n w arkansas
Binocular, Solar, General Amateur Astronomy
|
KennyJ
Reged: 04/27/03
Posts: 10146
Loc: Lancashire UK
|
|
David ,
Although the shaving is not presently causing any problem --there may come a time when it could .
Thus , if you can access and carefully remove the offending article after simply unscrewing the objective cell -- then do so -- then carefully screw back on the objective cell .
If not -- then I doubt if it would be worth paying a REAL professional to remove it .
Kenny
--------------------
If everyone is thinking the same thing , no-one is thinking - General George S.Patton
Zeiss 7 x 42 BGAT
Captain's Helmsman 7 x 50
Nikon 10 x 42 Superior E
Swift Audubon Kestrel 10 x 50
Helios 15 x 70 Observation
Strathspey 20 x 90
Televue 76 APO
Zeiss 85 Diascope
Helios 102 f5 refractor
Various eyepieces barlows tripods mounts etc.
Panasonic Lumix DMC - TZ5 digital camera
|
charen
scholastic sledgehammer
Reged: 05/28/05
Posts: 786
Loc: New Zealand
|
|
If you are like me I like my optics to be pristine and whilst it may not cause any image problems - the thought that is is there would be annoying and bug me.
When ever you use them you will 'know' its there.
Remove it !.
--------------------
35 binos.
80mm Cat.
WO66ED
SV NH 80mm / EQ3
Meade 8in.LX90
Skywatcher Equinox ED120 / Goto HEQ5.
|
edwincjones
Post Laureate
Reged: 04/10/04
Posts: 4423
|
|
but sometimes you do more damage removing the offending object than by leaving it
edj
--------------------
n w arkansas
Binocular, Solar, General Amateur Astronomy
|
Markus
Postmaster
Reged: 12/26/04
Posts: 5395
|
|
If it doesn't interfere with the view and it is not "rattling" around then I would leave it be, unless it is hanging by a thread and sure to come loose soon, only then would I remove it. 
--------------------
25X100 Skymasters
15X70 Skymasters
Home built Parallelogram Mount
|
patter1
professor emeritus
Reged: 01/19/05
Posts: 597
Loc: Canada
|
|
Is the piece of metal actually in between the two lenses of the objective, or is it on the 'outside' (prism side) face of the inside objective lens?
Is it rattling around or is it 'sticking' in place? If it's moving around I'd worry about it scratching the objective or prism face or the coatings. But if it's stuck in place, then it won't be doing any damage and won't be affecting the view (other than aesthetics!), so it would be safer to just leave it.
--------------------
Patrick
8" f/6 NewStar dobsonian
Orion Starblast 4.5" f/4 mini dobsonian
42mm SuperView, 17mm Nagler T4, some other cheapies
Omcon 7x50, Oberwerk 11x56, Olympus DPS-R 7x35, Olympus Magellan 8x25
homemade 50mm right-angle bino-scope prototype
|
dgs©
Postmaster
Reged: 03/29/04
Posts: 13903
Loc: West Monroe, Louisiana
|
|
It appears to be stuck to the back side of the objective lens. Could be between I suppose... I don't know how the elements stack up in there. I had assumed there was a cemented doublet at the front but no reason it couldn't be air spaced - or in this case, metal shaving spaced  .
The shaving is well out from the perimeter and doesn't seem to be interested in moving, but it wasn't there before so it obviously can move. That probably is more worrisome than anything... the potential for it to roam around and scratch up some coatings.
I still need to get a photo and post it, just for general edification of all who pass by this thread. 
--------------------
- david
8"Ø Newtonian on SVP, Moonlite CR2, Telrad
PST Oberwerk Ultra 15x70 Orion Ultraview 10×50
Hand-me-down Sears Refractor (Discoverer) 60mm×900mm
"What we have done for ourselves alone dies with us; what we have done for others and the world, remains and is immortal." --Albert Pike
|
Claudio
sage
Reged: 07/26/04
Posts: 226
|
|
Most probably that small shaving of aluminium is a bit sticky. If you try to remove it from the lens surface then possibly there will be need to clean the lens. In that case it would be better to remove the objective cup from the barrel and not the whole barrel. However I don't know if this is possible in your binocular.
Take in count that the thread of the objective cup (as well as that one of the barrel) is probably not very precisely machined, thus collimation should be checked after reassembling it.
I would give a name to the shaving and would live with it.
Claudio
Edited by Claudio (11/01/07 12:51 PM)
|
dgs©
Postmaster
Reged: 03/29/04
Posts: 13903
Loc: West Monroe, Louisiana
|
|
Quote:
Take in count that the thread of the objective cup (as well as that one of the barrel) is probably not very precisely machined, thus collimation should be checked after reassembling it.
That's pretty much what I've been thinking all along. 
--------------------
- david
8"Ø Newtonian on SVP, Moonlite CR2, Telrad
PST Oberwerk Ultra 15x70 Orion Ultraview 10×50
Hand-me-down Sears Refractor (Discoverer) 60mm×900mm
"What we have done for ourselves alone dies with us; what we have done for others and the world, remains and is immortal." --Albert Pike
|
Previous
Index
Next
Threaded
Edit
Reply
Quote
[Re: 