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1 hour ago, TomB_tx said:

Erwin Puts commented that Leitz had prototyped a rigid version of the 2.8 for more precise optical alignment, but it never made production.

Here it is... the only 50mm. called "elmarit", 4 built 2 known to exist

 

 

 

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Thanks - Interesting, the body looks to be styled just like the v3 Summicron introduced in 1968. I wonder if they were considering this as a bargain lens about that time. Shortly after that time the costs/prices of Leica equipment really jumped. Maybe this was to be the entry level offering, like the 40mm Elmarit-C that never went into production either.

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8 hours ago, TomB_tx said:

Thanks - Interesting, the body looks to be styled just like the v3 Summicron introduced in 1968. I wonder if they were considering this as a bargain lens about that time. Shortly after that time the costs/prices of Leica equipment really jumped. Maybe this was to be the entry level offering, like the 40mm Elmarit-C that never went into production either.

Nice little lens which I use quite a lot and really tiny.

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Am 25.12.2022 um 11:59 schrieb willeica:

Does anyone have an LTM f3.5 lens in the new mechanical formula?

To the best of my knowledge, those don't exist. I have seen one copy years ago where the new mechanical formula's head had been fitted to a regular old version LTM version base, it looked kind of odd and I am fairly certain that it was an aftermarket switch. Although some publications say the LTM version switched to the new mechanical design from a certain point in time, this does not seem to be true, as I have never ever seen a new mechanical design LTM 3.5/50 Elmar lens, and even the very late copies (1 4xx xxx onwards) still use the traditional mechanical design.

Cheers,

Andy

Edited by wizard
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On 12/17/2022 at 9:41 PM, UliWer said:

Yes, and this may be right. Helmut Thiele in his book "Großes Fabrikationsbuch Leica-Objektive" lists the batch from 1.455.001 - 1.458.000 as the last one with screwmount. The last batch for the 1:3,5/5cm with M-mount is listed with 1.333..001- 1.337.000, so the production of the newer M-mount version might have ended earlier than the "old" screw mount. 

Both were replaced by the 1:2.8/5cm (later 50mm) Elmar which - according to Thiele - started with 1.402.001 and was produced both in screw-mount and M-mount. 

All these listings may become void when certain examples were found which belong to a different version than indicated in the lists. 

My own 1:3,5/5cm 1185483 in M-mount and 1:2,8/5cm 1.451.765 in screw-mount fit into the listing by Thiele. So does Pyrogallol's 1:3,5/5cm shown in #8.

Here photos of very early elmar 5cm. 2,8, n. 1.402.015. In the lower part under the word "Germany" there is a cancelled "Leitz Eigentum" script. Lens was on a Leica IIIF prototype

 

 

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7 hours ago, wizard said:

To the best of my knowledge, those don't exist. I have seen one copy years ago where the new mechanical formula's head had been fitted to a regular old version LTM version base, it looked kind of odd and I am fairly certain that it was an aftermarket switch. Although some publications say the LTM version switched to the new mechanical design from a certain point in time, this does not seem to be true, as I have never ever seen a new mechanical design LTM 3.5/50 Elmar lens, and even the very late copies (1 4xx xxx onwards) still use the traditional mechanical design.

Cheers,

Andy

Thanks Andy. That is why I asked the question as all I have seen in f3.5 LTM are traditional style lenses. I have an LTM f2.8 with the serial No 1549355 which is a very nice performer from 1958. Although I also have two M mount f2.8s, my LTM example is in mint condition and I used it with an adapter on my M6 to get the photo below at Goodwood last September. The collapsible Elmar and the M6 make a great combination which easily fits in an ERC. Note to all those currently looking at the 'new' M6 and a note to Leica to produce an ERC which can take either the 'new' flat 35mm Summilux or the f2.8 50mm Elmar, both of which have low profiles.

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William 

 

Edited by willeica
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5 hours ago, willeica said:

...That is why I asked the question as all I have seen in f3.5 LTM are traditional style lenses...

Hello William

In Dennis Lainey's book there is the following picture, does it illustrate the illusive lens you were thinking about?

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9 hours ago, 105012 said:

Hello William

In Dennis Lainey's book there is the following picture, does it illustrate the illusive lens you were thinking about?

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Van Hasbroeck states that the new version of the f3.5 lens was produced in bayonet mount only. In his text, Laney mentioned that a bayonet mount was produced in 1954, but then went on to say that 'both versions' were in a new sturdier mount with aperture ring behind large bezel and filter fitting changed to E39. However, I have not seen one of these in a screw mount. There was a habit back then of removing M mounts to enable use of a lens on LTM cameras, which were still quite common. I see the picture in Laney's book , but, for me, the QED factor remains unproven until I actually see one. For what it is worth, Lager only shows the f2.8 LTM model. The 'new' mechanical formulation of the f3.5 only appears in the M section in his book. 

William 

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lens 1186572 is listed in Thiele as bayonett mount. Together with William we spent hundrets of hours on researching Elmars and never found 3,5 LTM in new mount.
Laney does not show DOF in his screw mount sample, you  may use 2,8 LTM mount on 3,5 bayonett optics and result will be the lens as pictured ny Laney. And assuming that you do not care about DOF and that focal length group for both mounts are the same then it will perfectly work.

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  • 2 years later...
On 12/28/2022 at 12:04 PM, 105012 said:

Hello William

In Dennis Lainey's book there is the following picture, does it illustrate the illusive lens you were thinking about?

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Personally I assume the left picture was a DIY lens using a front part of bayonet E39 3.5 Elmar and the screw mount of 2.8 Elmar. That's why he didn't show the other side of the lens which will see the 2.8 on depth of field scale.

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