My No32 scope is like looking through fog, and it's getting annoying..
Is there a guide anywhere to cleaning it?
Do I need any special tools?
Should I even attempt it?
All advice eagerly accepted :-)
Printable View
My No32 scope is like looking through fog, and it's getting annoying..
Is there a guide anywhere to cleaning it?
Do I need any special tools?
Should I even attempt it?
All advice eagerly accepted :-)
Peter Laidler ought to get you sorted, directly. He is in GB, so it ought not be too complicated. He may have you send it to a local dealer, so please wait for instructions.
Not a chore for any but those familiar with the inner workings! (Or those willing to take a chance at damaging or destroying the scope...)
Try posting a picture from the ocular end.
It could be a lens separation and if that is the case the lens will have to be removed, and re-glued. If it is a Mk.I and the lens is scratched or beyond repair, I have new lenses. If a Mk. III that is a different matter. It is still very repairable, but you have to pull the cell and then the lenses.
A lens separation will look like either spider webs or brownish staining normally from the edge towards the centre looking like scallops.
Where are you located???
He appears to be in England. Click on the little blue circle on the bottom leftish side of his post to get his rough location (it's not exact, but ought to at least be in the correct country.)
If he was in Canada, I would have run him your way, Wheaty.
He hasn't filled in his location field of his personal profile ..Quote:
Originally Posted by wheaty
Click the blue colored i for information icon at the bottom of his post Warren ... :thup:
Regards,
Doug
Check Peter Laidler's posts and series of MKL articles ... :thup:Quote:
Originally Posted by goblin357
Index of Peter Laidler's on-line series of articles.......
Regards,
Doug
Hey, hey fellas.........., Peter Laidler here - and he absolutely HATES doing these things. He only does them so that shooters can keep them up and running. Don't contact me direct as I never deal direct with the public. Try Fultons in the UK or BDL in the US. There are many others who actually enjoy it who are more experienced than me too..................
I'm in the UK in Wales.
I'll have a go after reading the articles posted here.
It's not broken or anything, if I shine a light down the tube I can see a haze on the lenses so I think if I can get it apart a little rub with a cloth will sort it out.
Thanks for the replies.
If I don't get anywhere I'll take it to Fultons next time I'm at Bisley in March.
Valley sniper is a dab hand at these, and he lives in Wales too. You probably know him - he drives a red car
How did you know I drive a red car Peter? It's true!!!Quote:
Originally Posted by Peter Laidler
Well that was easy :-)
I made a little tool from a hacksaw blade and a dremel, took out the big lenses and the small side, they were pretty clean...
But looked in the tube and then could see the other lenses in the tube thing in the middle were grey.
So got that out, and took it apart, the surfaces of the 2 lenses inside the tube that faced each other had a thick coating of dust on them, and I mean thick, like someone had shaken talcum powder over them.
Cleaned them off, popped it all back together and now looking through it my white wall is white, not yellow :-)
Hopefully now I'll be able to see the targets at Sennybridge past 400 yards :-)
Dont know how so much dust got in between the two middle lenses though... I was surprised....
Valleysniper, where do you shoot? I shoot at Severnside, Swansea and Sennybridge with Brecon Rifle Club.
I too have a red car :-)
I hope thus doesn't mean you two guys are going steady .... :eek:Quote:
Originally Posted by goblin357
I have a blue car ... :lol:
Regards,
Doug
The red car you keep in the garage with the leaky roof......EVERYBODY knows that !!!!!
I have a white van... can I come too??
Then it is true.
Peter Laidler does know everything!
There's a little lesson for everyone there. Have a go but DON'T go past the point of no return. What you have gobbler is the Canada Balsam that has dried out, forming a powder. In a few years, your erector cell kenses will need re-cementing.
If you do take your erector cell apart, then look carefully at the lens configuration. The REARMOST lens has a double convex front and back. To re-assemble, the SHALLOW convex must face the rear. That is that it must face the stopdown shield. In turn, this means that the DEEPER convex must face the front. That is the opening of the erector cell.
The FRONT lens goes into the cell DEEP convex first so that the two deep convex face each other (there's a technical word for this that I won't go into............) and the FLAT side is the side that faces the counter cell or lens retaining ring.
Sometimes, especially in Canadian and No53's, the front lens is also a double convex.
Clean them in nothing more that methylated spirit
Anyway, well done for trying Gobbler
Thanks for that Peter.
I didn't take the second lens out of the erector cell as I wasn't sure how to do it.. I just used a new sable paint brush down the hole to gently brush it clean..
May I ask, for future reference is the re-cementing job a DIY task or does it need a professional of some sort? It all looked nice and solid so hopefully good for a few more years yet :-)
Cementing lenses is an art. If you use Canada Balsam with a zero refractive index, it 'sets' over a long time but you can use UV cured cement. I am old fashioned so I strick with (...if you'll excuse the opun.....) Canada Balsam. It's getting harder and harder to obtain now though
Canadian Balsam has now been declared a "hazarous product". I order it in one ounce bottles but have to get the supplier to take out one ml of product to take it under the legal limit for shipping. I does not have to make sense, it's Government policy:rolleyes::rolleyes: