Author Topic: 100/1.6 XR-Heligon  (Read 2224 times)

John Geerts

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Re: 100/1.6 XR-Heligon
« Reply #15 on: December 21, 2018, 20:06:45 »
True Bob. 

I have the same one, only a few numbers away from your serial number:  11603626

bobfriedman

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Re: 100/1.6 XR-Heligon
« Reply #16 on: December 21, 2018, 23:19:58 »

Nikon D850 ,Rodenstock Heligon 100mm f/1.6
1/30s f/1.6 at 100.0mm iso100

cropped


added PK-11a ring

Robert L Friedman, Massachusetts, USA
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John Geerts

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Re: 100/1.6 XR-Heligon
« Reply #17 on: December 22, 2018, 17:41:02 »
Full frame with only the k2-ring on the Heligon

D850    100/1.6  1/100  iso3600


bobfriedman

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Re: 100/1.6 XR-Heligon
« Reply #18 on: December 22, 2018, 22:32:22 »
nice one!
Robert L Friedman, Massachusetts, USA
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Dr Klaus Schmitt

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Re: 100/1.6 XR-Heligon
« Reply #19 on: December 23, 2018, 12:26:04 »
There seems to be a couple versions of this lens. I also have the 4401.33.824.00 version (see the picture in Bob's post #6). The current ebay listings of this lens state "Laser Optics" in the description and I've never seen actual confirmation that it is an f/1.6 as the aperture is not listed on the lens itself. Nor does it state that it is XR-Heligon, just Heligon.

Then there is the version that has 1:1.6 written on the barrel (see the diagram in Bob's post #6). Birna has also posted pictures of her version recently which appears to be the same as the one in the diagram and has 1:1.6 written on the barrel. I'm not sure which version Klaus uses(?)

From what I can tell from past discussions and viewing images from both they behave in very similar ways in regards to focal distance (approx. 3 feet on an F mount DSLR) and image characteristics. I don't think I've ever seen the 1:1.6 version available and surmise it to be the less common of the two. What the actual differences are I do not know as I haven't seen any diagrams for the 4401.33.824.00 version.

Side note: More common than either of these and a different lens entirely is the 100mm f1.5 which comes in many forms and can only achieve a focal distance of a few inches on an F mount DSLR, perhaps this version will prove to be useful on the Z6/7

Mine also was sold as "laser optics" which is just lack of knowledge of the seller I assume. Mine does not have a M48 thread mount on its end, but otherwise just looks like an industrial version with slightly modified mechanics of that documented f1.6/100m on my published data set.

Nice results guys!
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Birna Rørslett

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Re: 100/1.6 XR-Heligon
« Reply #20 on: December 23, 2018, 12:55:29 »
My 100/1.6 XR-Heligon is labelled as such and has 48mm threads at the rear. The 100/1.5 is superficially similar (apart from the printed specification on the barrel), but significantly heavier believe it or not

Jan Anne

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Re: 100/1.6 XR-Heligon
« Reply #21 on: January 12, 2019, 13:07:23 »
I dug up the Heligon after years of neglect with the idea to use it on the Z6.

Erik glued a K4 ring with 52mm female thread to the Heligon and with an assortment of adapter rings I end up with the Leica M mount so I can use my Voigtlander VM/E focusing helicoid in combination with the Novoflex M39/LEM extensions rings, focus is now roughly 3 meters without extensions and as close as 25cm fully extended.

It should go to infinity focus with a direct female 52mm to Leica M adapter ring but was unable to find one back then, currently it is female m52>M43, M43>M39 and M39 to Leica M.

Maybe someone has a good suggestion for a slimmer setup with at least one less adapter ring, getting to 10 meters or so would already be a nice bonus :)
Cheers,
Jan Anne Offereins

Birna Rørslett

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Re: 100/1.6 XR-Heligon
« Reply #22 on: January 12, 2019, 13:17:08 »
You might put an Z mount directly on the end of your focusing adapter -- that'll shave off extension and allow focus to infinity.


Dr Klaus Schmitt

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Re: 100/1.6 XR-Heligon
« Reply #23 on: January 12, 2019, 13:50:12 »
I dug up the Heligon after years of neglect with the idea to use it on the Z6.

Erik glued a K4 ring with 52mm female thread to the Heligon and with an assortment of adapter rings I end up with the Leica M mount so I can use my Voigtlander VM/E focusing helicoid in combination with the Novoflex M39/LEM extensions rings, focus is now roughly 3 meters without extensions and as close as 25cm fully extended.

It should go to infinity focus with a direct female 52mm to Leica M adapter ring but was unable to find one back then, currently it is female m52>M43, M43>M39 and M39 to Leica M.

Maybe someone has a good suggestion for a slimmer setup with at least one less adapter ring, getting to 10 meters or so would already be a nice bonus :)

well done Jan Anne!
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Jan Anne

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Re: 100/1.6 XR-Heligon
« Reply #24 on: January 12, 2019, 13:51:49 »
Thanks Birna but would really like to end up with a slimmer Leica M solution for the Heligon as I've normalised most of my MF lenses to that mount.

This allowed me to use the mentioned helicoid and extensions rings also on the 50/1.2 and 85/1.2FD and could even use the TechArt autofocus adapter for the Heligon :)
Cheers,
Jan Anne Offereins

Jan Anne

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Re: 100/1.6 XR-Heligon
« Reply #25 on: January 14, 2019, 17:23:46 »
A few quick snapshots of the Heligon installed on a proper camera (Z6) using the Novoflex NIK Z/LEM adapter which was just delivered.

As Novoflex isn't a helicoid adapter like the one I used on the Sony focus is now roughly 30cm with all the extensions rings in place instead of 25cm.
Cheers,
Jan Anne Offereins

Dr Klaus Schmitt

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Re: 100/1.6 XR-Heligon
« Reply #26 on: January 15, 2019, 08:20:22 »
Looks like you got way too much extension Jan Anne? If you shorten that, wouldn't you get a more suitable focusing range?
Mine focuses from like 20cm up to infinity...
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Jan Anne

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Re: 100/1.6 XR-Heligon
« Reply #27 on: January 15, 2019, 21:26:31 »
Hi Klaus, the focus distance is now 30cm to 3 meters depending on how many extensions rings are installed, for practical use I will probably end up somewhere in the middle.

If you know a shorter solution btw to mount the Heligon with 52mm threads to a Z6 which enables infinity focus I'm all ears, I failed to do so on the Sony a few years ago but  maybe there are other solutions out there now which allow a solution with more focus range beyond 3 meters :)

Details of the adapter rings currently in use are mentioned here:
http://nikongear.net/revival/index.php/topic,8043.msg135042.html#msg135042
Cheers,
Jan Anne Offereins

Dr Klaus Schmitt

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Re: 100/1.6 XR-Heligon
« Reply #28 on: January 18, 2019, 18:24:53 »
Hi Klaus, the focus distance is now 30cm to 3 meters depending on how many extensions rings are installed, for practical use I will probably end up somewhere in the middle.

If you know a shorter solution btw to mount the Heligon with 52mm threads to a Z6 which enables infinity focus I'm all ears, I failed to do so on the Sony a few years ago but  maybe there are other solutions out there now which allow a solution with more focus range beyond 3 meters :)

Details of the adapter rings currently in use are mentioned here:
http://nikongear.net/revival/index.php/topic,8043.msg135042.html#msg135042

I will be away for a week Jan-Anne, when I'm back I will let you have some pointers for an alternative solution!
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Frank Fremerey

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Re: 100/1.6 XR-Heligon
« Reply #29 on: January 18, 2019, 19:16:45 »
Nikon D850 ,Rodenstock Heligon 100mm f/1.6
1/30s f/1.6 at 100.0mm iso100
added PK-11a ring


WOW, Bob. I really like this very much. An exceptional camera with an exceptional lens.
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