Archived posting to the Leica Users Group, 2011/05/06

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Subject: [Leica] 100 year anniversary of 120 film (Care & feeding of '29 Original)
From: pdzwig at summaventures.com (Peter Dzwig)
Date: Fri, 06 May 2011 20:25:35 +0100
References: <625993.2837.qm@web125703.mail.ne1.yahoo.com> <3D37FC30-95D4-4E62-BEC6-81F7744D04DA@charter.net> <BANLkTi=_rcRne54EbQfgc=TR875MCZkjrw@mail.gmail.com>

OK. I think I have an antique 120 somewhere.

Peter

On 04/05/2011 20:40, Richard Man wrote:
> I'm in!
> 
> On Wed, May 4, 2011 at 6:33 AM, Slobodan Dimitrov <s.dimitrov at 
> charter.net>wrote:
> 
>> I just found out that next year, 2012, 120 film will be 100 years old.
>> Anyone willing to do a celebratory project to commemorate the milestone?
>> S.d.
>>
>> Begin forwarded message:
>>
>>> From: Carlos Manuel Freaza <cmfreaza at yahoo.com.ar>
>>> Date: May 4, 2011 1:53:25 AM PDT
>>> To: rolleiusers at yahoogroups.com
>>> Subject: Re: [rolleiusers] Re: Care & feeding of '29 Original
>>> Reply-To: rolleiusers at yahoogroups.com
>>>
>>> Kirk:
>>> 120 film was available from 1912 and the Rolleiflex was designed in 1928,
>> it could be made to use 120 film but Heidecke wanted to keep the camera as
>> compact and small as posssible and then he chose the 117 film (B1-6). The
>> Rolleiflex was a market successs and hardly the firsts users got it they
>> asked the factory about to adapt it to use longer film; F&H found a way to
>> retrofit the camera for 620 film spools use with 12 frames.
>>>
>>> According the explanation in Claus Prochnow's Report 1, the 620 spools
>> larger flanges made contact with the upper spool chamber and then it had 
>> to
>> be enlarged accordingly, the lower spool was housed in a cage and 
>> projected
>> slightly and then the camera back received two spherical cuts. The camera
>> exterior was kept original without changes.
>>>
>>> The camera could also be adapted for 120 film at factory, but it required
>> major changes with modifications even for the camera exterior (i.e. a
>> additional spool knob and a new wider transport knob with a groove) and 
>> the
>> changes for the camera inside were significant too.
>>> While the adaptation for 620 film looks pretty simple for a technician
>> wanting to do the task, the adaptation for 120 film looks more complex
>> requiring special parts, 120 spools had slight variants at the time and 
>> the
>> adaptation needed to consider these variants.
>>>
>>> It was from January 1932 with the first Rolleiflex Standard model that
>> the Rolleiflex cameras were made to use 120 film from factory. The 117 
>> film
>> was discontinued in 1949, F&H decision to adopt the 120 film size had
>> nothing to do with the 117 film availability, the Rolleiflex users wanted 
>> a
>> longer film.
>>>
>>> Carlos
>>>
>>> PS:If you have the 620 spools, it's pretty easy to respool 120 film, the
>> only difference 120-620 is the spool, film size is the same.
>>>
>>> --- El mi? 4-may-11, Kirk Thompson <thompsonkirk at hotmail.com> 
>>> escribi?:
>>>
>>>> De: Kirk Thompson <thompsonkirk at hotmail.com>
>>>> Asunto: [rolleiusers] Re: Care & feeding of '29 Original
>>>> Para: rolleiusers at yahoogroups.com
>>>> Fecha: mi?rcoles, 4 de mayo de 2011, 1:03
>>>> Thanks, Richard, for having a go at
>>>> it, but unfortunately those aren't solutions (if there are
>>>> any).
>>>>
>>>> 1. No way 120, it's too fat. The early Rolleis used 117
>>>> film.  Phillips explains that in 1929 it was the only
>>>> size that had the frame numbers printed in the right place
>>>> on the backing paper. 117 was 6 cm wide but had a thin
>>>> spindle (making a thinner roll), small flanges, and
>>>> different holes in the ends of the spools.
>>>>
>>>> When 117 was discontinued, many of the original Rolleis
>>>> were converted to 620 film (which is still available from
>>>> B&H). 620 has a skinny spindle and small flanges like
>>>> 117, but it required a modification of the cameras: a
>>>> different-sized left bump and right key to engage the
>>>> take-up spool. These are the conversion parts I have some
>>>> small hope of finding, if anyone knows of an old Rollei
>>>> burial site where such things can be found.
>>>>
>>>> 2. Years of experience have proved that klutzes like me do
>>>> not work on their own cameras. So I still want to know if
>>>> there's a classic camera repairman who retains old parts and
>>>> skills. (Fleenor and Krikor don't work on these.)
>>>>
>>>> Kirk
>>>
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> 
> 

-- 

===========================================================
Dr Peter Dzwig                          




In reply to: Message from s.dimitrov at charter.net (Slobodan Dimitrov) ([Leica] 100 year anniversary of 120 film (Care & feeding of '29 Original))
Message from richard at imagecraft.com (Richard Man) ([Leica] 100 year anniversary of 120 film (Care & feeding of '29 Original))