Leica LTM SCNOO Help Please

Leica M39 screw mount bodies/lenses
jonwardle

jonwardle

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Wondering if anyone has a diagram or photos showing the internal
parts of the SCNOO trigger block and ribbon holder on the sliding
block in the channel rail.

Does anyone have a copy of original Leica instructions.

Also what lubrication is needed for sliding block.


Thanks.

Jon
 
Hi Jon,
No photos, but I can describe them from memory (which is still working okay. I think.)

There's the chrome or nickel outer shell. To remove this you just need to unscrew the three screws from inside the plate.
Underneath is a black ring with a slot in it. The slot matches up with the opening in the outer shell.
The black ring goes over the winder that the ribbon is attached to. It consists of a post with an outer sleeve. The outer sleeve has a screw through it that allows you to squeeze the sleeve against the post and hold the ribbon.

After affixing the ribbon to the post with the sleeve, you'll need to wind it up before threading it through the slot in the black ring and the opening in the outer shell. This is a bit tricky, since it is easy for the winder post to unwind while trying to do it. It must be wound so that there is tension on the ribbon.

I hope this helps,
Mike

Edit: Oh yeah, I wouldn't use any lubrication on the sliding block. Oil will just attract dirt. It should move fine without any lubrication.
 
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Hi Jon,

Here's a picture of my SCNOO on my favorite II. I agree with Mikes description, but I would suggest a small drop of gear-box oil for lubrication.

Erik.

3765683580_8d6304f338_b.jpg
 
Highly interested in this thing. I have heard mixed opinions on the SCNOO. Some people prefer the trigger winder, and these don't approve of the SCNOO.
Story is, the ribbon stretches over time, requiring constant attention to keep the SCNOO going. Ergonomics are also said to be disappointing.

Any truth in this, or stories on the contrary? I'd like to hear!

I have one in the mail to use on my 1938 IIIa, and am looking forward to find out for myself. In the meantime, your experiences are welcome.
 
CLE-RF said:
Some people prefer the trigger winder, and these don't approve of the SCNOO.
Story is, the ribbon stretches over time, requiring constant attention to keep the SCNOO going. Ergonomics are also said to be disappointing.

Any truth in this, or stories on the contrary? I'd like to hear!
Click to expand...

The SCNOO is a great device. I have used one for many years and it works like a dream.
Sometimes the bodies on wich it is to be used need some adaptation. This should be done by a skilled repairman as Ton Scherpenborg from Nijmegen in the Netherlands.
When the ribbon needs replacement, any silk ribbon that fits will do the job. Replacing the ribbon is very easy to do.
The SCNOO is a typical instrument of the mid- and late thirties, its development could have been ordered by the Propagandaministerium of Dr Joseph Goebbels in favor of their Bildberichter.
There are also SCNOO's for the IIIC Leicas, but these are very rare.
In my opinion the SCNOO is a better rapidwinder than the later Leicavit. It is of a much simpler construction and therefore much more reliable.

Erik.
 
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Thanks Erik,

Ton Scherpenborg keeps popping up in our conversations. I will definitely consider him in case my IIIa and SCNOO need fine tuning. IIIa will need a CLA anyway, nothing below 1/30th is budging.

I could imagine the SCNOO being developed to allow for better photo coverage of the 1936 Berlin Olympics.
 
Today the SCNOO finally arrived. Sadly, the ribbon is torn in two.

I will give fixing it myself a shot first, since money is tight. In due time the SCNOO and the IIIa will receive an overhaul to get the trigger winder and slow times on the camera going.
 
I'm a newbie here how can you find out the year these were made I have what looks like a Leica II or III came with the trigger mechanism the serial # 169739 has a 5cm/50mm lens called a Sunmar serial # 206786 thanks for any info any of you can provide will be greatly appreciated!

Thanks Brian
 
Also the trigger is without the cloth to wind the film trying to figure out if it should be replaced and the costs associated with it? The camera works and seems in great shape although the leather cover has a few issues (cracked a little) anyone knows of a person to send it to, so I can get a CLA and the trigger cloth replaced? The lens is good just looks dirty but I don't see any scratches or fungus in it under bright light!

Thanks for any help you can provide also it came with a viewfinder and a lens hood too.
 

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The camera is a Leica III (top speed 1/500 sec) or a Leica IIIa (top speed 1/1000 sec).
The lens is a Summar 50mm f/2.
The winder is a SCNOO, but it is not functional. Do you have also the original baseplate of the camera? The SCNOO replaces the normal baseplate to offer fast winding of the film and tensioning of the shutter.

It is certainly possible to repair the whole set to function 100% in the way when it was new (except maybe the lens), but at quite some cost. There is a sticky thread in the M-section of this forum with addresses of competent repairmen.

The SCNOO certainly is the most collectible piece of the whole set. When it is complete the repair is not difficult.

The shade of the lens could also be an interesting piece. Do you have a picture of that?

Erik.
 
Here's the lens hood

In all honesty I'm not really into the Leica's I'm more of a LF guy but I had a Leica when I was 7 yrs old which I found of all places a garbage dump!
 

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The lens hood is also the original type, but in my opinion not very handy. It is called SOOMP. It is quite rare because it is a Leitz New York item. Some collectors are interested in those items.

If you do not want to keep the set just try to sell it via the classifieds of this forum or eBay.

Erik.
 
It did not come with the original bottom plate unfortunately! It did come with two filters that screw directly onto the lens it's made by I think Leica as well can you give me years on the camera and lens? Thanks
 

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Also what would be a fair value for the whole kit I rather get in someone's hands who can appreciate the craftsmanship and use it instead of collecting dust!
 
Erik van Straten said:
The camera is a IIIa from 1935, the lens is from 1934. The value I really don't know.

Erik.
Click to expand...

I wonder if there was a shortage of bodies in that period. What I mean is that I also owned a 111a (mine from 1936) with a lens which had a serial number indicating it was from 1934. At the time I wondered why the lens should be a couple of years older than the body and had put it down to either the above or that the production of lenses had run a little ahead of demand for bodies to put them on. It would be interesting to know.
 
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