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The VNEX enlarger lens project V2.0
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PostPosted: Wed Oct 08, 2014 11:52 pm    Post subject: Reply with quote
Is there anything like this available for projector lenses?


PostPosted: Thu Oct 09, 2014 4:38 am    Post subject: Reply with quote
woodrim wrote:
Is there anything like this available for projector lenses?


Yes, iam developing a system for 62.5 / 52.5 and 42.5mm projector lenses...

The velvet helicoil (please use google translate... only german language)
http://www.digicamclub.de/showthread.php?t=19738

additional tools to the velvet helicoid and listings for p-Lens specifications...

http://www.digicamclub.de/showthread.php?t=19802


you already find some informations also here on mflenses in projector lens related articles about Meopta Meostigmat 1.4/70mm..

http://forum.mflenses.com/meopta-meostigmat-1-4-70-on-ff-and-nex-via-vnex-t55218,start,75.html

Later i will post a complete article about this new project... also on mflenses.

My own forum is still the first place for informations about my projects.

But if you want referenzes, please ask mflenses user "buggz"... he has got one of the first velvet helicoids for projection lenses from Meopta... the 52.5mm version.

cheers
Henry


PostPosted: Thu Oct 09, 2014 2:16 pm    Post subject: Reply with quote
Thank you. Are the registers on projector lenses also different with each lens? Is there a range of the registers? I don't know if they are unusually long or short.


PostPosted: Thu Oct 09, 2014 2:19 pm    Post subject: Reply with quote
hinnerker wrote:
woodrim wrote:
Is there anything like this available for projector lenses?


Yes, iam developing a system for 62.5 / 52.5 and 42.5mm projector lenses...

The velvet helicoil (please use google translate... only german language)
http://www.digicamclub.de/showthread.php?t=19738

additional tools to the velvet helicoid and listings for p-Lens specifications...

http://www.digicamclub.de/showthread.php?t=19802


you already find some informations also here on mflenses in projector lens related articles about Meopta Meostigmat 1.4/70mm..

http://forum.mflenses.com/meopta-meostigmat-1-4-70-on-ff-and-nex-via-vnex-t55218,start,75.html

Later i will post a complete article about this new project... also on mflenses.

My own forum is still the first place for informations about my projects.

But if you want referenzes, please ask mflenses user "buggz"... he has got one of the first velvet helicoids for projection lenses from Meopta... the 52.5mm version.

cheers
Henry


Sounds interesting Henry,

there should be quite some demand for this solution.


PostPosted: Thu Oct 09, 2014 2:45 pm    Post subject: Reply with quote
woodrim wrote:
Thank you. Are the registers on projector lenses also different with each lens? Is there a range of the registers? I don't know if they are unusually long or short.


Thats what me and the users on my forum are researching at the moment..
So we are working together, collecting data for a list of projection-lenses parameters... have a look at this link..

http://www.digicamclub.de/showthread.php?t=19802&page=2&p=216735&viewfull=1#post216735

So if anyone has a projection lens for a slide projector, 16mm or 35mm cinema projector, we now collect the data for our data table listing.

A lot of people from my forum did already buy one of the velvet helicoids together with the Meostigmat 1/50 or 1.35 or 1.4/70mm and will also buy - after its finished work - the additional tubes, which allows simply to plugin 42.5mm slideprojector lenses in it. This additional tube works as the counterpart of the new velvet helicoil.
This plugin system did use also velvet as a light seal on the 42.5mm lens body and the plugged in projector lens can be locked and hold in place if infinity is reached. From this locked lens-position, you can focus the complete range from infinity to about 30cm depending on the lens parameters.

The velvet helicoid initially was made for the Meopta Meostigmat 1.4/70mm lens, a cheap alternative to the Carl Zeiss Biotar 1.5/75mm, which climb a very expensive price level on the market...



And... this is a Will Wetzlar Maginon 2.8/85mm slide projector lens, plugged in to the velvet helicoid + a prototype of the new 42.5mm "plugin-reduction" tube. You will see in the shown image the 42.5mm Will Wetzlar "Maginon" lens plugged in to a prototype of the additional "reduction"-part.



As far as we collect, most of the slide projector lenses do have 42.5mm diameter, so i start with such a reduction tube.

Will keep you informed also here on mflenses.

Cheers
Henry

Last edited by hinnerker on Fri Oct 10, 2014 5:05 pm; edited 4 times in total


PostPosted: Thu Oct 09, 2014 2:48 pm    Post subject: Reply with quote
Thank you.


PostPosted: Thu Nov 06, 2014 1:57 am    Post subject: Reply with quote
Hello,

Reporting in...

I just received a very good condition Kodak Enlarging Ektar 75mm/4.5 lens.
Playing around for an hour, or so, I got it working on my Vnex Uni kit for Fuji XF.

I will take photos this weekend, and of the rig itself.

Thanks again Henry.
This is cool.


PostPosted: Tue Dec 02, 2014 6:37 am    Post subject: adapter Reply with quote
hallo
hab das vnex-system hier wiederentdeckt
zwei sachen
1. adapter-lieferant sorry wenn schnee von gestern
http://www.ebay.com/sch/procameras_pt/m.html?item=321521700072&hash=item4adc2fcce8&pt=UK_Photography_CameraLenses_Lens_caps_hoods_adaptors_ET&rt=nc&_trksid=p2047675.l2562

2. zoerk hat mini-macroschnecke 25.5 bis 60mm auszug. kameraseite m42- optikseite: 41mm.maximacro-version gab es auch mal oder immer noch. diese evtl. für grössere aufnahmefornate.
hoffentlich find ich wen der all die adapter liefern kann die für all meine linsen nötig sind.


PostPosted: Sun Dec 07, 2014 9:10 pm    Post subject: Reply with quote
I´d like to ask about VNEX system - I recently won on eBay Rodenstock Apo-rodagon-N 105/4 + Zork multifocusing system (Leica R mount) - then used with leica R->NEX adapter on my A7r. What was surprise for me was relatively long register lenght. Can I get with VNEX KB and extension tubes closer? Here is a shot with this 105 APO-rodagon:



I have Braun Ultralit 80/2.8 PL too so VNEX KB will be usefull for me Smile

Sending PM.


PostPosted: Sun Dec 07, 2014 9:18 pm    Post subject: Re: adapter Reply with quote
europanorama wrote:
hallo
hab das vnex-system hier wiederentdeckt
zwei sachen
1. adapter-lieferant sorry wenn schnee von gestern
http://www.ebay.com/sch/procameras_pt/m.html?item=321521700072&hash=item4adc2fcce8&pt=UK_Photography_CameraLenses_Lens_caps_hoods_adaptors_ET&rt=nc&_trksid=p2047675.l2562

2. zoerk hat mini-macroschnecke 25.5 bis 60mm auszug. kameraseite m42- optikseite: 41mm.maximacro-version gab es auch mal oder immer noch. diese evtl. für grössere aufnahmefornate.
hoffentlich find ich wen der all die adapter liefern kann die für all meine linsen nötig sind.


... nicht unbedingt, wenn man in einem Englischen Forum auf Deutsch fragt... Wink


PostPosted: Sun Dec 07, 2014 9:34 pm    Post subject: Re: adapter Reply with quote
kds315* wrote:
europanorama wrote:
hallo
hab das vnex-system hier wiederentdeckt
zwei sachen
1. adapter-lieferant sorry wenn schnee von gestern
http://www.ebay.com/sch/procameras_pt/m.html?item=321521700072&hash=item4adc2fcce8&pt=UK_Photography_CameraLenses_Lens_caps_hoods_adaptors_ET&rt=nc&_trksid=p2047675.l2562

2. zoerk hat mini-macroschnecke 25.5 bis 60mm auszug. kameraseite m42- optikseite: 41mm.maximacro-version gab es auch mal oder immer noch. diese evtl. für grössere aufnahmefornate.
hoffentlich find ich wen der all die adapter liefern kann die für all meine linsen nötig sind.


... nicht unbedingt, wenn man in einem Englischen Forum auf Deutsch fragt... Wink


LOL Laughing


PostPosted: Thu Mar 17, 2016 8:45 pm    Post subject: Reply with quote
Lovely looking bit of kit. How much and where do I get it?


PostPosted: Sat Jul 02, 2016 3:53 pm    Post subject: Reply with quote
Will be *STL-Files available of the VNEX system in future?
My 3D-Printer would be proud to print them Wink


PostPosted: Sat Sep 09, 2017 11:15 pm    Post subject: Reply with quote
Hi,

Thank you for this excellent tutorial.

Could you please tell me how much cost vnex, and where to buy it ?

Thanks !


PostPosted: Sun Sep 10, 2017 7:22 am    Post subject: Reply with quote
willy35 wrote:
Hi,

Thank you for this excellent tutorial.

Could you please tell me how much cost vnex, and where to buy it ?

Thanks !


Hi,

the "basic set" is 129 Euro + shipping and contains following parts:

-VNEX module with the mount you wish
(depending on your camera = for Sony you will get a VNEX KB2.0, for µFT mount you will get a VNEX universal)

Short explanation:
There are two different VNEX Versions... one for Sony E-Mount and one for the lot smaller µFT Mount. The µFT "mount - hole" needs a total different construction and can only support cams up to APS-C sensors/format. So this "VNEX universal" can be used on Fuji, µFT, Sony NEX and others by simply change the mount on the module (it was build with a 52mm reverse ring... so simply change the reverse ring if you want to use it on more then one System.

The Sony Version has a wider "hole" and must cover "fullframe" of the Sony A7 line of cams. So the rotating inner tube is a lot wider (41.5mm instead of 36mm for the VNEX universal.

Lets go on with the parts...

- VNEX modul, depending on your cam
- 1 pcs. 9mm connector M39 for your enlarger lens
- 1 pcs. 12mm connector M39 for your enlarger lens
- 1 pcs. inner connector (to cascade the 9 and 12mm connectors to a new value of 21mm
- 1 pcs. 25mm tube with M39 thread on the outer side for the use of 80mm enlarger lenses. It acts as a "Spacer ring".
- 1 pcs. screw tool for for lock the thread in the connectors

This are the parts of the basic version.

The "extended Version" contains some additional parts and costs 169 Euro + shippiing

- an additional 6mm connector (together with an additional inner connector you can build 6, 9, 12mm (only with the single connectors, 15mm (combined 6 and 9mm), 18mm (combined by 12 + 6mm connector), 21mm (combined by 9+12mm connector), 27mm (combining 6, 9, 12mm).
This gives more flexibility...

- a reverse tube with 40.5mm to M39 threat diameter. We call this "macro reverse tube". The trick is to use the tube on enlarger lenses with a filter diameter of 40.5mm (for example Rodenstock, newer Nikon, some Hoya etc. enlarger lenses do have 40.5mm filter threats)., For this enlarger lenses you can use the tube as a "sunshade" on the lens andsimply and fast reverse the tube with the enlarger lens in the connector.
So the sunshade tube acts as a distance ring for macro work up to 1:1 (depending on the sensor of your cam).

- 1 pcs. gender changer 25mm to M39 thread
- 1 pcs. changer from 27mm to M39 thread
- 1 pcs. changer from 30mm to M39 thread
- 1 pcs. changer from 32mm to M39 thread
- 1 pcs. tool for 2mm inbus screws in the changer plates
- 1 pcs. additional inner connector

For further informations contact me via heitchen@digicamclub.de

Regards
Henry


PostPosted: Tue Aug 11, 2020 12:43 am    Post subject: Reply with quote
Is the VNEX system still available for purchase?

kindest regards, phil


PostPosted: Tue Aug 11, 2020 7:29 am    Post subject: Reply with quote
Yes - you can contact Henry (Founder of the VNEX-Project) under
this mail address:
https://www.digicamclub.de/impressum.php?
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