Microscope lens

Re: Microscope lens

bob lehner — Fri, 21 Feb 2014 18:50:51 GMT

[quote user="Tom Ward"]Quite so, but unfortunately careless users often drag the 40x lens through the oil after using the 100x lens.... Drives me mad![/quote]

Aaagh - maybe I should loan you my former lab technician. She would happily perform an orchidectomy (sans g.a.) on any vet foolish enough to do this to 'her' microscope. (Although she did regularly leave her mascara smeared across the eyepiece - almost as annoying.....)

Re: Microscope lens

Tom Ward — Fri, 21 Feb 2014 18:05:15 GMT

[quote user="Rob Davis"]

[quote user="bob lehner"]Surely a 40 x lens should not be used with oil ???[/quote]

Quite so, but unfortunately careless users often drag the 40x lens through the oil after using the 100x lens.... Drives me mad!

[/quote]

Hit the nail on the head Rob!

Re: Microscope lens

Rob Davis — Fri, 21 Feb 2014 17:25:22 GMT

[quote user="bob lehner"]Surely a 40 x lens should not be used with oil ???[/quote]

Quite so, but unfortunately careless users often drag the 40x lens through the oil after using the 100x lens.... Drives me mad!

Re: Microscope lens

bob lehner — Thu, 20 Feb 2014 13:50:49 GMT

[quote user="Tom Ward"]Our in house microscope's 40x lens has finally given up the ghost (too much oil and dirt over too long!)[/quote]

Surely a 40 x lens should not be used with oil ???

Re: Microscope lens

John Flynn — Thu, 20 Feb 2014 05:59:53 GMT

[quote user="Tom Ward"]It turned out my careful lengthy cleaning with a lens tissue had been entirely ineffective.[/quote]

If there's oil on the lens, then you often need cotton buds as a lot of these lenses are concave on the end of them.

And on occasions you need to use about 20 cotton buds to actually remove the oil rather than just smear it around the lens.

Preferably soaked in lens cleaning solution, but I've resorted to meths on occasions.

Re: Microscope lens

Utlendigur — Wed, 19 Feb 2014 22:59:02 GMT

Woodley were helpful when ours packed in - they also do a lens cleaning service aswell in case the boss is unavailable

Re: Microscope lens

Tom Ward — Wed, 19 Feb 2014 22:55:40 GMT

Thanks Bob. It turned out my careful lengthy cleaning with a lens tissue had been entirely ineffective. My boss came in, spat on a tissue, wiped the lens, and now it's good as new!

Re: Microscope lens

Bob Russell — Wed, 12 Feb 2014 15:55:00 GMT

Try Ebay. There are a number of sellers that seem to break up good quality microscopes presumably for more money! Plenty of cheap Indian or Chinese optics there as well. Some of these are not that bad for day to day use.

I have a cheap Chinese microscope in my room and a better German one at my desk in the office!

Quite a smart looking Leitz 40X one on there for £65 at the moment!

Actually a cheaper one item number: 350988534419