[rollei_list] Re: Identify Rolleiflex model?
- From: Håkon Sønderland <hts@xxxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Fri, 21 Sep 2012 23:27:08 +0200
Thanks guys, that is a lot of good information.
Still waiting for an answer from the seller.
I'm guessing he does not know a lot about the camera since the posting
was so sparse.
But a serial number should make the model certain at least.
Håkon
2012/9/21 CarlosMFreaza <cmfreaza@xxxxxxxxx>:
> 2012/9/21 John Wild <JWild@xxxxxxxxxxxxxxxxxxxxxx>:
>> Carlos, I had not heard about the shutters before, that is very interesting.
>>
>> I guessed that the letter designation 'jumped' because the 2.8 and 3.5
>> features were added first to the 2.8 and 'trialed' then the 3.5 would be
>> improved to 'catch up'.
>
> Heidecke preferred the 3.5 models for the 6x6 format, someway the
> pro-market compelled F&H to develop 2.8 models. In general, every
> improvement was added for the 3.5 and 2.8 models simultaneously or
> almost simulteneously, there were a few exceptions of course, f.e the
> double format back was simultaneously added to the Rolleiflex 3.5 and
> 2.8 that were already in production with the one format back, the MX
> shutter was used for the 3.5A from the beginning and added to the 2.8A
> at the same time to replace the X shutter, the Rolleifix groove was
> added for the 2.8C and 3.5 A simultaneously too,, etc.,etc.; BTW there
> were features used for one or a few models only, f.e. the 2.8C plastic
> locks for shutter and flash cord never were used for other model, the
> special adjustable loupe for the focusing screen was only used for the
> 2.8C and D, the high tech fresnel/ground glass mix for the focusing
> screen and the removable viewfinder hood were used for the Rolleiflex
> "T" for the first time, etc.
>
> After the non coupled built in lightmeter, the next step was a camera
> with a built-in coupled lightmeter, a difficult issue for a MF
> mechnical camera, it requires means to transmit f stops and shutter
> speed settings to the lightmeter values, Rollei quickly wanted this
> model for commercial reasons and CZ/Compur/Deckel offered them a
> complex shutter with large gears that worked to transmit the camera
> settings to the lightmeter. Rollei accepted this shutter, it was
> available for the 00 size only and the 3.5F1 and 2
> received this “Differential” or “Planetary” shutter, a big shutter
> with gears to couple shutter speeds and f stops with the lightmeter;
> it required to increase viewing and taking lenses distance from 42mm
> (3.5E or C and others 3.5) to 45mm like the 2.8/80 taking lens models.
> A similar shutter size 0 for the 2.8F prototype had no room in the
> camera body and then Rollei developed the “Kegelrad- Differential”, a
> little bulb/cylinder plenty of little gears behind the f stops wheel
> that allowed to couple the lightmeter
> using the normal shutter and then it was possible to manufacture the
> 2.8F. The 3.5F model 3 also received the little Kegelrad-Differential
> to be used with the normal 00 shutter, the larger planetary shutter
> was no longer used, but the 3.5F kept the 45mm lenses distance,
> Prochnow says this "Kegelrad" device was a "brilliant".design from
> Rollei engineers and technicians.
>
> Carlos
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