[rollei_list] Re: My "new" Rolleiflex SL66
- From: CarlosMFreaza <cmfreaza@xxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Mon, 7 Jun 2010 15:14:59 -0300
Eric:
The Distagon design was necessary for this 80mm "standard"
lens because its greater back focus allows to the lens itself to be in
front of the shutter, I don't know about others Distagon designs for
"normal" or "standard" lenses.
This page has several SL 66 lenses diagrams (the Planar 2.8/80 is
above the Distagon 4/80), you could compare both lenses, anyway they
are little diagrams, I could scan some bigger ones for my blog:
http://www.sl66.com/pg/lens_index.shtml
Carlos
2010/6/7 Eric Goldstein <egoldste@xxxxxxxxx>:
> Carlos -
>
> It would be interesting to compare the block diagrams of the 80 Planar
> and the 80 Distagon... are there any other Distagon "normal" lenses
> available for any camera to your knowledge?
>
>
> Eric Goldstein
>
> --
>
> On Mon, Jun 7, 2010 at 12:12 PM, CarlosMFreaza <cmfreaza@xxxxxxxxx>
> wrote: (snipped)
>
>> It came with the Zeiss Distagon 4/80 lens provided with independent
>> Compur leaf shutter (the lens is in pristine condition), this shutter
>> is wide open in the standard position and then the lens regularly
>> works in conjuction with the camera focal plane shutter as for any
>> other lens. If you need or you want to use fill- in flash for shutter
>> speeds faster than 1/30 sec, the lens Compur shutter offers X-M synch
>> from 1/30 to 1/500, it has a socket for the flash cable; it’s also
>> interesting the way both shutters work together, the lens shutter has
>> a comfortable tab to cock it, after to do it the lens shutter stays
>> wide open, when you release the focal plane shutter release button in
>> the camera, (you need 1/30 or slower speed for the focal plane
>> shutter) the Compur first closes when the focal plane shutter opens
>> and afterward it fires according the selected shutter speed making to
>> fire the flash too, the leaf shutter stays closed after to fire and it
>> opens again automatically when the focal plane shutter closes again,
>> it looks complex to describe but it’s pretty simple in practical use.
>> I think the lens Compur shutter needs a CLA because it sometimes
>> closes partially when the focal plane shutter opens, it must close
>> completely during this phase; except for this detail, the Compur works
>> fine, I really don’t need to use it and then no problem, I’ll wait for
>> a general CLA that the camera needn’t yet apparently, I’ll see after
>> the first roll.
>>
>> The camera-lens combo (this Distagon has double weight regarding the
>> Planar 2.8/80) is heavier than a TLR of course, but it can be handled
>> by hand, I think to use it for close-up photography and since the
>> camera offers a certain limited capacity for the “Scheimpflug”, I’ll
>> try to do some special DOF effect.
>>
>> Carlos
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