Author Topic: 100/1.6 XR-Heligon  (Read 10654 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!
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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

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

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

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

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.
You are out there. You and your camera. You can shoot or not shoot as you please. Discover the world, Your world. Show it to us. Or we might never see it.

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