My new (to me) Wild M10 & Leica Rotterman Contrast base

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Rorschach
Posts: 354
Joined: Sun Mar 10, 2019 11:44 am

My new (to me) Wild M10 & Leica Rotterman Contrast base

#1 Post by Rorschach » Thu Jul 13, 2023 7:57 am

Hi people,

Christmas is early this year! I was finally able to find what I have been searching for many years, the 'holy grail' of stereomicroscopes, the Wild M10! :) The scope came with the Leica ergo binocular, Wild 10x eyepieces and PlanApo 1x objective. It was on a large Leica icident light stand but I promptly put it on my Leica BF/DF/RC stand MDG 32 (Leica number 10 447 390) which allows brightfield, darkfield and Rotterman contrast. The scope is from the first half of 90ies and the stand/base is from about 20 years ago. It was possible to create this combo thanks to blueprints from Leica Finland for the focusing column adapter that enables one to put Wild stereos (the M3Z and the Wild M10) that use the trapezoidal (or side-faced) focusing column on the new Leica bases. I paid to a friend who has a metal workshop with milling machines etc. and he created the adapter for me from thick aluminum scrap parts (it was impossible to find the Leica made original adapter any more). The adapter works perfectly!

And what about the image quality...it is simply superb! I thought my previous workhorse, a Wild M3Z with a PlanApo objective and the original Wild BF/DF base produced very, very good results, but the Wild M10 and the Leica Rotterman base blow them out of the water! Such a joy to use. Once I get the Reichert Polyvar set up and find a Leitz Diavert, I think I am set for life :D

Here's some pics of the setup:
2023-07-13 11_02_59-20230712_213601.jpg
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2023-07-13 10_59_44-20230712_213618.jpg
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I had my friend make another adapter as well, this one is for the Wild 25mm round focusing columns to be connected to these new Leica bases. Here's two pics of this adapter:
20230713_095320.jpg
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20230713_095333.jpg
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I already had a couple of Wild original adapter plates that enable using a trapezoidal focusing column on older Wild bases intended for the 25mm round column. So now I can combine pretty much any Wild or Leica stereo on nearly any Wild or Leica base. Great fun and gives many options.

Unfortunately, when testing the scope yesterday, I immediately found out that the fine focus isn't working. The coarse focus functions as it should but when I try to use fine focus, the knobs just turn (and very, very lightly, which of course is a sign or problems) but the focus does not change. Could this be an adjustment problem? I have the Wild M10 user manual as pdf but there was nothing on adjusting fine focus. I hope it's nothing too serious.

PeteM
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Location: N. California

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#2 Post by PeteM » Thu Jul 13, 2023 5:44 pm

That looks well worth the wait. It's hard to imagine a nicer configuration.

Scarodactyl
Posts: 2795
Joined: Sat Mar 03, 2018 9:09 pm

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#3 Post by Scarodactyl » Thu Jul 13, 2023 6:27 pm

I have the same base and like it a ton. I think you'd be hard pressed to find a better all around setup along with the M10.

Rorschach
Posts: 354
Joined: Sun Mar 10, 2019 11:44 am

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#4 Post by Rorschach » Fri Jul 14, 2023 9:47 am

Yep. I think this base is optimal. The newer versions have a couple more bells and whistles but mostly they don't bring any important gain in functionality.

I have one of these and will use it to set up incident light:
Leica_Schott_Hi-Power_Led_spot.jpg
Leica_Schott_Hi-Power_Led_spot.jpg (75.54 KiB) Viewed 8310 times
I am in the process of getting a third-party part that enables axial imaging by moving the objective under one of the two light paths, thus removing parallax problems and chromatic aberrations. Just like the Type S carrier available for Wild M3Z and it's brethren, i.e. a poor mans macroscope. I would imagine that, especially when using a Leica PlanApo 2x objective, resolution and quality might approach a Wild M420 macroscope (at least one equipped with a makrozoom lens instead of the apozoom). This part apparently also has the capability to take a fiber optic lead for coaxial lighting. Nice to have a fourth illumination type available even if usage is rare. Someone here knows more about the part :)

It occurred to me that as I have the Wild/Leica filter slider unit for stereos, it might be possible to use rectangular polarizer filters in it. Then a rotatable polarizer on the objective, and voila? This would be handy in general, not just for reflection removal when using the coaxial light. I assume that this setup would remove the need to have separate polarizers for each of the light sources (Spot Led and the TL base). Of course, other filters can also be placed in the filter slider such as light color filters or a barrier filter for fluorescence. They would just have to be of correct shape and size, or be cut from something existing.

MichaelG.
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Location: North Wales

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#5 Post by MichaelG. » Fri Jul 14, 2023 12:27 pm

I don’t know how similar the focus mechanisms might be, but
… I have a PDF copy of the M420 service manual

If you think it might be useful, send me your eMail address by personal message.

MichaelG.
Too many 'projects'

Rorschach
Posts: 354
Joined: Sun Mar 10, 2019 11:44 am

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#6 Post by Rorschach » Sat Jul 15, 2023 9:25 am

MichaelG. wrote:
Fri Jul 14, 2023 12:27 pm
I don’t know how similar the focus mechanisms might be, but
… I have a PDF copy of the M420 service manual

If you think it might be useful, send me your eMail address by personal message.

MichaelG.
Thanks Michael! It may be of help solving this problem.

I have the repair manual for Wild M8 on pdf, if someone needs that one. It's great for working on a M8, which I have done lately, but not much use regarding the fine focus of a M10.

einman
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Joined: Tue Feb 24, 2015 1:03 am

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#7 Post by einman » Fri Sep 22, 2023 3:14 pm

Very nice set up. Love the diy adapters!

Atariwarrior
Posts: 16
Joined: Sun May 28, 2017 3:06 am

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#8 Post by Atariwarrior » Sun Sep 24, 2023 6:21 pm

Congratulations on your M10! It took me years to find my first M10 so I know the feeling.

You have a nice setup. It's nice to know someone who could do some custom machining to make your adapters.

You mentioned that you have a "Wild/Leica filter slider unit for stereos". Do you have a part number for that unit? I would be interested in trying to set up
a similar polarizer configuration on one of my M10s.

I am also interested in a repair manual for the M10 if anyone has a copy on PDF. I have just opened up one of the M10s for simple lubrication but that's about it.

I haven't opened up the focusing knobs for the M10 but I suspect the tension might be adjusted to allow a quicker movement with the fine focusing knob.

Rorschach
Posts: 354
Joined: Sun Mar 10, 2019 11:44 am

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#9 Post by Rorschach » Fri Sep 29, 2023 6:57 am

Atariwarrior wrote:
Sun Sep 24, 2023 6:21 pm
Congratulations on your M10! It took me years to find my first M10 so I know the feeling.

You have a nice setup. It's nice to know someone who could do some custom machining to make your adapters.

You mentioned that you have a "Wild/Leica filter slider unit for stereos". Do you have a part number for that unit? I would be interested in trying to set up
a similar polarizer configuration on one of my M10s.

I am also interested in a repair manual for the M10 if anyone has a copy on PDF. I have just opened up one of the M10s for simple lubrication but that's about it.

I haven't opened up the focusing knobs for the M10 but I suspect the tension might be adjusted to allow a quicker movement with the fine focusing knob.
Thanks :-)

There is no part number for the slider unit because it's a custom third party part.

Atariwarrior
Posts: 16
Joined: Sun May 28, 2017 3:06 am

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#10 Post by Atariwarrior » Sun Oct 01, 2023 8:57 pm

I saw a photo of a filter holder on the M10 in the M10 manual and I thought that was what you had. See the attached photo from the manual.
WildM10-filter housing.jpg
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If anyone knows what the Leica\Wild part number is for this accessory, please let me know.

Scarodactyl
Posts: 2795
Joined: Sat Mar 03, 2018 9:09 pm

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#11 Post by Scarodactyl » Sun Oct 01, 2023 11:57 pm

https://www.ebay.com/itm/145031535059 maybe not identical but close

Atariwarrior
Posts: 16
Joined: Sun May 28, 2017 3:06 am

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#12 Post by Atariwarrior » Mon Oct 02, 2023 12:50 pm

Hello,

Thanks for finding the filter holder. I ordered it right away. I didn't want to lose it.
It should work on my M10. If not, it will work on my M8 for sure.

Now all I need is the proper filters or filter media/sheets. Can anyone recommend a source? I'm thinking a 1/4 lambda or lambda. I think this is the most common type.

I appreciate any help or tips.

Thanks!

Scarodactyl
Posts: 2795
Joined: Sat Mar 03, 2018 9:09 pm

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#13 Post by Scarodactyl » Mon Oct 02, 2023 2:50 pm

Edmund optics sells sheets that are likely good enough relatively inexpensively.. It should be pretty easy to 3d print perfectly fitting holders for them.

Atariwarrior
Posts: 16
Joined: Sun May 28, 2017 3:06 am

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#14 Post by Atariwarrior » Wed Oct 04, 2023 12:15 am

I'll look into it.

Thank you!

Atariwarrior
Posts: 16
Joined: Sun May 28, 2017 3:06 am

Re: My new (to me) Wild M10 & Leica Rotterman Contrast base

#15 Post by Atariwarrior » Thu Oct 05, 2023 11:17 pm

I received the filter holder today. It fits perfectly. However, it doesn't have the filter slide/holder.
LeicaWildM10-FilterHousing.jpg
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I also bought a newer version of the filter holder for the Leica M Series of microscopes. The Ebay seller said it will also fit the M10 and it comes with the filter slide/holder. If it fits the other older holder, I will see if I can have someone 3D print one or machine one out of aluminum.
Leica Filter Holder.jpg
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Someone in Germany is selling a refurbished one on Ebay that comes with the filter slide/holder but it is over $500 not including shipping.
LeicaWildFilterHolder-refurb-EBayGermany.jpg
LeicaWildFilterHolder-refurb-EBayGermany.jpg (28.96 KiB) Viewed 6987 times
https://www.ebay.com/itm/186012214909

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