Just unscrewed the focus ring at the front of my cheap nikko scope too far thinking it would have a stop ,( which it didnt ) and removed the whole front assembly. Is it stuffed ?
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Just unscrewed the focus ring at the front of my cheap nikko scope too far thinking it would have a stop ,( which it didnt ) and removed the whole front assembly. Is it stuffed ?
can you post a picture mate? if the lens came off then yes i would say as no gas which stops fogging up and suchQuote:
Originally Posted by waimo
You should be able to send it away to be regassed and sealed.
Attachment 201162
Had to screw right out on thread to correctly focus reticle . You tube video recommended winding eyepiece fully out til it stops then winding into focus . Problem is it didnt stop.
Well if you have a friendly welder that uses argon I would put it in a plastic zip lock bag with the gas running through a tig flow meter into it and screw the lens back on while its inside the bag. Argon is a dry gas so cant see why it wouldnt work.
Shout the welder a beer for the gas
You wound out the wrong part its the bell shaped part it came out of , you will see the thin lock ring just behind the power ring . Screw it back in , in a warm dry room and you might get away with not regassing it
Just followed the instructions in the box that came with scopeAttachment 201175Attachment 201180
That's odd as looking at your pic of the two pieces it would appear as soon as you turn that section the oring can't seal anyway as won't be squashed between surfaces anymore....
You sure that the ring on the end of the piece that unscrewed isn't supposed to turn independent of the rest of that body section that unsrewed and is just tight through no use ??
Andrew Rackstraw (if he is still working) has a re-gassing set up in his workshop in Upper Hutt.
Just use it mate, got a Nikko mount chief on my Brno model 1 that I did that to when I was a kid (fiddling), put it back on and it hasn’t been a problem since, still going strong 30 years later.
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Iv done that yrs ago with a couple of nikkos,dont think they run on gas.:D
I've done exactly the same many years ago with a Silver Crown. Screwed it back on and carried on. It didn't seem to affect it while I had it but it is long gone now.Quote:
Originally Posted by Spudattack
It will be fine. Things like scopes or Night vision goggles with Nitrogen usually have the nitrogen leak out after a few years anyway. If you are worried find a mate with a dive tank, crack/open the tank and give the inside of your scope a blast of the dry air coming out of the tank. Screw the lens back on while in the blast of air coming out of the tank. Your scope is now full of filtered dry air. Have done it this way with expensive night vision equipment for years, never had a fogging issue.
U tube can be wrong as it was here, screw it back in till the reticle is clear and sharp, don't take any notice of the image just the reticle,it should go in almost all the way. If you wear glasses wear them when doing this and shooting.Quote:
Originally Posted by waimo
Screw all the the way home tight and loosen the thin lock ring behind the power ring and unscrew the bell or ocular housing out till it suits . You have unscrewed the lense body not the focus ocular ring which has knurling on it to grip , look at the manual again .
Dang your right there @m01a1good spotting,
Thank you
Was about to say the same thing as m101a1, but thought I's better just read to the bottom haha... Dry internals is the key, doesn't matter if the thing is gassed on argon nitrogen or whatever in reality. Having no oxygen in the thing slows down mould or lense-spot growth, but it really isn't a 'must do'. As someone sugested, a large plastic bag attached to an argon welding reg with a small hole in one corner is a useful impromptu regassing setup. Wrap/roll the bag up to purge as much air out as possible, or even better attach it to a vacuum pump and suck the air out of the bag. Open the argon cylinder and let the bag reinflate with the purge hole pinched off so you only have mostly argon in the bag, then reassemble the scope. Job done!
helium balloon......will give you enough gas to redo it,,let it vent up into scope and then screw your bit back in.
Helium isn't a long term thing - it's notoriously hard to keep behind a seal as the molecule size is tiny. That's why they normally use argon as the purge gas - it's a much bigger particle size so 'stays put' in the purged device for a longer timeframe. As per - whether that's important to you for this particular unit is up to you!
Bin it, its a nikkon :D
And it had the added advantage of making it lighter😂Quote:
Originally Posted by Micky Duck
finally some sense!Quote:
Originally Posted by Gibo
If it was a Nikon I definitely wouldn't be binning it. As it's a Nikko Sterling, then maybe.:)Quote:
Originally Posted by Gibo
You haven't lost any gas, as the gassed section is at either ends of the scope between the double sets of lenses...put it back together and focus the reticle by turning the rubber bit at the eyepiece end..
I think you are ok I don't think that part of the scope is sealed you would have heard the gas escaping when you unwound, Toss it in the fridge for a few hours
and see if it fogs.
Ah HA! We just discovered how covid got into NZ!!!
:D
