Archived posting to the Leica Users Group, 2011/05/04

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Subject: [Leica] 100 year anniversary of 120 film (Care & feeding of '29 Original)
From: charcot at comcast.net (charcot)
Date: Wed, 04 May 2011 11:46:04 -0600
References: <625993.2837.qm@web125703.mail.ne1.yahoo.com> <3D37FC30-95D4-4E62-BEC6-81F7744D04DA@charter.net>

  Slobodan - count me in as interested.

ernie

On 5/4/2011 7:33 AM, Slobodan Dimitrov 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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In reply to: Message from s.dimitrov at charter.net (Slobodan Dimitrov) ([Leica] 100 year anniversary of 120 film (Care & feeding of '29 Original))