Leitz binocular head teardown

Everything relating to microscopy hardware: Objectives, eyepieces, lamps and more.
Post Reply
Message
Author
Aslan
Posts: 42
Joined: Wed Oct 24, 2018 3:01 pm
Location: Toronto

Leitz binocular head teardown

#1 Post by Aslan » Fri Oct 11, 2019 11:47 am

Hello all. Does anyone know of a repair or teardown manual for a Leitz binocular head. The head is from an Ortholux 1 but I think the SM had similar construction. The head that came with my ortholux needs some serious internal cleaning (as in separating prisms to get to dirt and mould cleaning). Luckily I already had a trinocular head that is fine on the scope but I would like to see if I can clean the binocular head. Or should I just cut my losses or sell it as-is on ebay?
____________________________
Leitz Ortholux I
Leitz SM microscope
Reichert Biovert
Spenser 58 convertible microscope

MicroBob
Posts: 1422
Joined: Sun Dec 25, 2016 9:11 am

Re: Leitz binocular head teardown

#2 Post by MicroBob » Fri Oct 11, 2019 12:52 pm

Hi Aslan,
there a basically two types of fungus damage: Superficial hazing and surface with etched net like looking shape. The former can be removed in most cases, the latter usually not.
Can you post pictures ob your binocular head?
I have cleaned a couple of them, but only as far as it was possible without taking the prisms out, which usually was enough.

Bob

Aslan
Posts: 42
Joined: Wed Oct 24, 2018 3:01 pm
Location: Toronto

Re: Leitz binocular head teardown

#3 Post by Aslan » Fri Oct 11, 2019 3:20 pm

81D80E2D-6677-4F98-82BA-53D1282A1C52.jpeg
81D80E2D-6677-4F98-82BA-53D1282A1C52.jpeg (85.88 KiB) Viewed 379 times
I thought it was on the surface. But it is deeper.
____________________________
Leitz Ortholux I
Leitz SM microscope
Reichert Biovert
Spenser 58 convertible microscope

mnmyco
Posts: 121
Joined: Tue Aug 28, 2018 11:03 pm

Re: Leitz binocular head teardown

#4 Post by mnmyco » Fri Oct 11, 2019 8:58 pm

That looks like fungal damage that is not possible to repair.

Scarodactyl
Posts: 382
Joined: Sat Mar 03, 2018 9:09 pm

Re: Leitz binocular head teardown

#5 Post by Scarodactyl » Sat Oct 12, 2019 12:01 am

It does, but every now and then they'll surprise you and disappear with the first wipe. It's worth a try, because if it doesn't work oh well, it was a loss anyway, if it does it's the best feeling, like when a screw remover finally works on a stripped bolt.

Aslan
Posts: 42
Joined: Wed Oct 24, 2018 3:01 pm
Location: Toronto

Re: Leitz binocular head teardown

#6 Post by Aslan » Sat Oct 12, 2019 12:35 am

So what I’m hearing is that I might as well have a bash. At the very least I will Get a deeper appreciation for the people that put these things together.
____________________________
Leitz Ortholux I
Leitz SM microscope
Reichert Biovert
Spenser 58 convertible microscope

MicroBob
Posts: 1422
Joined: Sun Dec 25, 2016 9:11 am

Re: Leitz binocular head teardown

#7 Post by MicroBob » Sat Oct 12, 2019 2:39 am

Defects in the light path can lead to two things:
- You get a fat spot in the image :evil:
- There is a very slight reduction of contrast :D

The hardest test is with a 100:1 oil immersion objective. Dirt and damages show more than with weaker objectives.

Post Reply