[rollei_list] Re: Rolleiflex clones Koni Omega lenses
- From: "Peter K." <peterk727@xxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Mon, 5 Oct 2009 17:39:42 -0700
They are actually the same lens. The 60 was originally made by Konica, the
58mm same factory but they changed ownership from Konica to Mamiya and
Mamiya also opted to change the name from Hexanon to Omegon and 60mm to
58mm. It is a Schneider Super-Angulon clone. An excellent WA that is on par
with many modern optics. As good as the new Schneider on the Rolleiwide and
better than the DIstagon on the old Rolleiwide.
On Sun, Oct 4, 2009 at 7:35 AM, Eric Goldstein <egoldste@xxxxxxxxx> wrote:
> Larry -
>
> The 58 and the 135 are the two lens gems on these cameras... highly
> corrected performance second to none on a 67 negative.
>
>
> Eric Goldstein
>
> --
>
> On Sun, Oct 4, 2009 at 10:23 AM, Laurence Cuffe <cuffe@xxxxxxx> wrote:
> >
> > On Sunday, 04 October, 2009, at 09:35AM, "Eric Goldstein" <
> egoldste@xxxxxxxxx> wrote:
> >>Oops... that should read the 135 mm lens option.
> >>
> >>On Sun, Oct 4, 2009 at 9:33 AM, Eric Goldstein <egoldste@xxxxxxxxx>
> wrote:
> >>> Larry -
> >>>
> >>> Unfortunately, that piece is both incomplete and inaccurate. It fails
> >>> to list the 180 mm lens option and has incorrect information about the
> >>> 90 mm lens.
> >>>
> >>>
> >>> Eric Goldstein
> >
> > Interesting. I only have the 58mm myself on a one hundred rapid omega.
> The following excerpt from the omega mailing list archives seems to explain
> where the dud info came from. Apparently there were deferent versions of the
> manual released some of which may have had incorrect information.
> > All the best Larry Cuffe
> >
> > Excerpt starts here:
> >>Something interesting has come to my attention. I have a copy of the
> >>manual
> >>for my Rapid M. James Watne has posted the manual for a Rapid 100 or
> 200.
> >>There are some differences between the lenses listed in each.
> >
> >>The M manual doesn't list the 135 mm at all. This makes sense in light
> >>of the fact that there are no dots in my viewfinder for the 135 mm lens,
> >>and the manual makes repeated references to the 3 lenses available.
> >
> >>But the interesting thing is that the M manual lists the 60mm Hexanon
> >>as having a 6 element 4 group lens, while the 100/200 manual lists the
> >>58mm Omegon as having an 8 element 4 group lens. The diagrams of the
> >>two lenses bear this out; the Hexanon is symmetrical, or nearly so,
> >>while the Omegon has visible differences between the rear group and
> >>the front group. They also list the angle of view as changing from
> >>60 degrees 20 minutes to 61 degrees even.
> >
> >>It appears that the 100/200 manual has a typo in that the 90mm lens
> >>is listed as having 6 elements 3 groups, despite the drawing only
> >>showing 4 elements in 3 groups. Either they miswrote the description,
> >>or they used the older diagram with the newer lens.
> >
> >>What does this all mean? Not much. 2/3 of one degree is a tiny
> >>difference in field of view (it's probably smaller than the width
> >>of the finder lines.) The shapes of the different groups in the 58
> >>and 60 are pretty similar. I suspect that Mamiya split up the lens
> >>differently to use different glass and/or different correction
> >>formulae. Is it worth selling your 60 and getting a 58, or vice-versa?
> >>Almost certainly not. But it is worth noting that there are some
> >>differences between these two lenses, if only for academic purposes.
> >
> > Regards,
> >
> > Martin F. Melhus | PDGA# | Where would we be without
> > melhus*at*fdrc.iit.edu | 11296 | hypothetical questions?
> >
> >
> >>>
> >>> --
> >>>
> >>> On Sun, Oct 4, 2009 at 9:00 AM, CarlosMFreaza <cmfreaza@xxxxxxxxx>
> wrote:
> >>>> 2009/10/4 Laurence Cuffe <cuffe@xxxxxxx>:
> >>>> ...> Carlos, the Koni Omeg'as are a fun line of cameras and I've got
> some
> >>>>> excelent results with the 58mm lens. Karen Morekuma has a nice review
> at
> >>>>> :
> http://www.photoethnography.com/ClassicCameras/index-frameset.html?KoniOmegaRapidM.html~mainFrame<http://www.photoethnography.com/ClassicCameras/index-frameset.html?KoniOmegaRapidM.html%7EmainFrame>
> >>>>> All the best
> >>>>> Larry Cuffe
> >>>>
> >>>> Thank you very much Larry, interesting review, she liked the camera
> >>>> but sold it finally.
> >>>> My interest is about a MF camera provided with a powerful, well
> >>>> corrected, wide angle lens for architectural shots, I don't want a MF
> >>>> camera with normal lens -I already have the Rolleis TLR- and I don't
> >>>> want to buy a wide angle lens as second lens, I want the combo
> >>>> body-wide angle lens directly, most cameras are offered with the
> >>>> normal lens and I don't want to buy the body only if I'm not sure
> >>>> about to obtain the WA lens afterward, BTW I'm not in a hurry and my
> >>>> budget is very limited, the Koni Omega RF I'm following looks very
> >>>> good but it has the normal lens an it still is expensive, I'll see if
> >>>> the price diminishes...
> >>>>
> >>>> Carlos
> >>>> ---
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> >>>>
> >>>
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> >>
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--
Peter K
Ó¿Õ¬
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