[rollei_list] Re: Rolleiflex 35mm Cameras
- From: "Austin Franklin" <austin.franklin@xxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Tue, 10 Nov 2009 10:37:21 -0500
Hi Eric,
We used to discuss this on the Contax list quite a bit. One of the members
went out and did a similar test as the links you've outlined (and I of
course simply did the arithmetic ;-) and proved the point.
Next you'll tell me you like Cordon Rouge over Dom...
Regards,
Austin
> -----Original Message-----
> From: rollei_list-bounce@xxxxxxxxxxxxx
> [mailto:rollei_list-bounce@xxxxxxxxxxxxx]On Behalf Of Eric Goldstein
> Sent: Tuesday, November 10, 2009 10:31 AM
> To: rollei_list@xxxxxxxxxxxxx
> Subject: [rollei_list] Re: Rolleiflex 35mm Cameras
>
>
> It is. Another interesting discussion relative to aperture, DOF and
> perceived sharpness:
>
> http://www.luminous-landscape.com/tutorials/dof2.shtml
>
>
> Eric Goldstein
>
> --
>
> On Tue, Nov 10, 2009 at 10:21 AM, Austin Franklin
> <austin.franklin@xxxxxxxxxxx> wrote:
> > Not if the same "framing" is maintained. A common misunderstanding ;-)
> >
> >> -----Original Message-----
> >> From: rollei_list-bounce@xxxxxxxxxxxxx
> >> [mailto:rollei_list-bounce@xxxxxxxxxxxxx]On Behalf Of CarlosMFreaza
> >> Sent: Tuesday, November 10, 2009 9:59 AM
> >> To: rollei_list@xxxxxxxxxxxxx
> >> Subject: [rollei_list] Re: Rolleiflex 35mm Cameras
> >>
> >>
> >> I'm afraid you are wrong Eric, DOF is purely a function of aperture
> >> for a given lens (and given frame size), but if the lens focal length
> >> changes the DOF also changes if keeping constant f stop and circle of
> >> confusion size . You could play with this DOF calculator changing only
> >> the lens focal length and you'll see the way the real DOF area also
> >> changes:
> >> http://www.dofmaster.com/dofjs.html
> >> Carlos
> >>
> >> 2009/11/10, Eric Goldstein <egoldste@xxxxxxxxx>:
> >> > It can be argued that DOF is purely a function of aperture
> and not FL.
> >> >
> >> >
> >> > Eric Goldstein
> >> >
> >> > --
> >> >
> >> > On Tue, Nov 10, 2009 at 9:32 AM, CarlosMFreaza
> >> <cmfreaza@xxxxxxxxx> wrote:
> >> > > Well, "any" camera is a term general too much. DOF has to do first
> >> > > with the lens focal length and the frame size and the circle of
> >> > > confusion size you consider acceptable and second with the
> f stop; you
> >> > > could stop down a 300mm lens for a 6x9 format at f11 or 16 (to say
> >> > > something) and you could still have more deeper DOF with
> the Rollei 35
> >> > > at f3.5, my point was that the Rollei 35 Tessar has a
> reasonable DOF
> >> > > and sharpness even wide open if you focus close to your desired
> >> > > focusing point, in other words, it is not necessary a
> telemeter under
> >> > > these conditions, perhaps this was not the topic central
> axis but it
> >> > > has to do with some messages I read in the thread.
> >> > >
> >> > > BTW, the "universal" camera does not exist yet, if you know your
> >> > > tools, you also know where and why to use them.-
> >> > >
> >> > > Carlos
> >> > >
> >> > >
> >> > > 2009/11/10, Marvin <marvin0@xxxxxxxxxxxxxx>:
> >> > >> I think you missed the point Carlos, it's possible to stop
> >> the lens down and
> >> > >> have a large depth of field with just about any camera, but
> >> that doesn't
> >> > >> afford the individual much control. That's the problem
> with the 35.
> >> > >> Marvin.
> >> > >>
> >> > >> -----Original Message-----
> >> > >> From: rollei_list-bounce@xxxxxxxxxxxxx
> >> > >> [mailto:rollei_list-bounce@xxxxxxxxxxxxx] On Behalf Of
> CarlosMFreaza
> >> > >> Sent: 10 November 2009 17:01
> >> > >> To: rollei_list@xxxxxxxxxxxxx
> >> > >> Subject: [rollei_list] Re: Rolleiflex 35mm Cameras
> >> > >>
> >> > >> I rarely had problems guessing the distance with the Rollei
> >> 35, these
> >> > >> two samples were taken during a travel, with the Tessar wide
> >> open, 3,5
> >> > >> 1/30 shutter speed and camera hand-held, the film was a
> Kodak Ultra
> >> > >> 400. The DOF is still deep at f 3.5 and the camera light
> meter worked
> >> > >> right.
> >> > >>
> >> > >> http://www.flickr.com/photos/itarfoto/1433112977/
> >> > >>
> >> > >> http://www.flickr.com/photos/itarfoto/1456649900/
> >> > >>
> >> > >> Carlos
> >> > >> ---
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