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hinnerker
Joined: 17 Aug 2009 Posts: 929 Location: Germany near Kiel
Expire: 2015-08-09
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Posted: Tue Sep 30, 2014 11:00 pm Post subject: |
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hinnerker wrote:
buggz wrote: |
Has anyone found a cover that fits the front?
I have a slip on plastic cover for my Sinar Sinaron S 180/5.6 MC that is pretty tight, so, I'm guessing there could be something similar for the Meopta Meostigmat 70/1.4? |
Take a 55mm "Snap in" cover...
Cheers
Henry _________________ some light-painting lens stuff..
... and an EOS 5D MKII
www.digicamclub.de |
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hinnerker
Joined: 17 Aug 2009 Posts: 929 Location: Germany near Kiel
Expire: 2015-08-09
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Posted: Thu Oct 02, 2014 9:28 pm Post subject: |
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hinnerker wrote:
And now, after receiving a 52mm reverse ring for Sony A-Mount...
Meostigmat 1.4/70mm on Sony A700...
This means, with the converted Meostigmat and the focusing aid its possible to use it on any conventional DSLR cam... by simply change to the DSLR mount you like
(Nikon D1, Pentax istDS, Canon 5D MKII)
You will get full infinity focus down to about 30cm...
And the lens looks like a "real lens" on this cams
Cheers
Henry _________________ some light-painting lens stuff..
... and an EOS 5D MKII
www.digicamclub.de
Last edited by hinnerker on Thu Oct 02, 2014 10:45 pm; edited 2 times in total |
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kds315*
Joined: 12 Mar 2008 Posts: 16498 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Thu Oct 02, 2014 9:30 pm Post subject: |
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kds315* wrote:
very clever Henry! _________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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hinnerker
Joined: 17 Aug 2009 Posts: 929 Location: Germany near Kiel
Expire: 2015-08-09
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Posted: Thu Oct 02, 2014 9:42 pm Post subject: |
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hinnerker wrote:
kds315* wrote: |
very clever Henry! |
Thanks Klaus...
The Nikon and Pentax were the "trouble makers" during the development. It all depends on the diameter of the DSLR mounts and the reverse rings available on the market.
Havent found usable reverse rings with a ~2mm plate for the Pentax, only 3.6mm... so this means, the conversion for Pentax requires more attention and some mm differences in register distance, compaired to Nikon to equal the differences of these rings.
I never would have thought that at the start of this new project..
But now its finished and i am happy to find a good solution for the Meostigmats...
So you can use the velvet helicoid on a EVIL cam with an original 1.4/70mm Meostigmat on SONY, FUJI, OLYMPUS/PANASONIC µFT, and whatever has a register distance at about 18 to 20mm ...
With small modifications the user can do it by hisself, the other Meostigmats like 1.3/35mm or 1/50mm can simply be modified to use them on Evil cams.
In addition if someone has a DSLR he can use the helicoid with the only fullframe covered lens, the 1.4/70mm, so he will get an Helios 40 -clone lens if he can find one for a good price on an old Meoclub 16k projector.
Thanks for your positiv comment.
Cheers
Henry _________________ some light-painting lens stuff..
... and an EOS 5D MKII
www.digicamclub.de
Last edited by hinnerker on Thu Oct 02, 2014 10:44 pm; edited 1 time in total |
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Attila
Joined: 24 Feb 2007 Posts: 57840 Location: Hungary
Expire: 2021-11-18
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Posted: Thu Oct 02, 2014 10:35 pm Post subject: |
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Attila wrote:
Amazing work, Henry congrats!!! Do you have experience with 55mm f1.2 Meopta ? _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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hinnerker
Joined: 17 Aug 2009 Posts: 929 Location: Germany near Kiel
Expire: 2015-08-09
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Posted: Thu Oct 02, 2014 10:42 pm Post subject: |
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hinnerker wrote:
Attila wrote: |
Amazing work, Henry congrats!!! Do you have experience with 55mm f1.2 Meopta ? |
Hi Attila,
unfortunately not, because in germany only 1.3/35, 1/50, 1.4/70mm are the most common offered lenses.
Is this one for 16mm also or for greater format?
Do you have informations for me? Or maybe a lens...
Thanks
Henry _________________ some light-painting lens stuff..
... and an EOS 5D MKII
www.digicamclub.de |
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15685
Expire: 2014-01-07
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Posted: Thu Oct 02, 2014 10:46 pm Post subject: |
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iangreenhalgh1 wrote:
How did you achieve infinity on the Sony DSLR? My copy of the 1.4/70 wouldn't get anywhere near infinity and the rear element was only 5mm from the end of the tube so shortening was impossible. _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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hinnerker
Joined: 17 Aug 2009 Posts: 929 Location: Germany near Kiel
Expire: 2015-08-09
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Posted: Thu Oct 02, 2014 11:14 pm Post subject: |
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hinnerker wrote:
iangreenhalgh1 wrote: |
How did you achieve infinity on the Sony DSLR? My copy of the 1.4/70 wouldn't get anywhere near infinity and the rear element was only 5mm from the end of the tube so shortening was impossible. |
This is a conversion... what means, you have to get the right register distance as well as the corresponding tube length and bring that to the correct diameter of the cam- mount of the cam you want to use it on.
After measuring you have to research whats going on in the lens body...
The Meostigmat 1.4/70mm is divided into 2 parts.. the front elements are in the main alloy body, and the blacked rear group of lenses is screwed into the main alloy.
So you have to separate both parts and mill them down to the necessary diameter and lenghts. If you further know, that the rear-lens diameter is 39.7mm the rest in understanding is easy.
Separate the two parts and look, whats necessary to bring the black rear lens group to fit his diameter to the diameter of the reverse ring minus 1,5mm. You can find this out by a calipher..
All this can be done best with a lathe... as ZoneV already said.
But you have to shorten the alloy body and the black part with the rear lenses both and not only the black rear part... and bring them together after machining with some new locking threads or simply fix both parts (front and rear) with 3 hexagonal screws in a 120 ° Angle.
This is simple because both tubes do have corresponding conical mechanical limiters... so the parts will fit and self-centering on the right position and distances to the next lens the in front of them without further needs.
If you possiby cant unscrew the black rear part by hand, take a tong as an aid for that, because sometimes it isnt easy to manage this by hand, depending on the age of the lens-Body and the state of corossion.
Regards
Henry _________________ some light-painting lens stuff..
... and an EOS 5D MKII
www.digicamclub.de |
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15685
Expire: 2014-01-07
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Posted: Thu Oct 02, 2014 11:41 pm Post subject: |
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iangreenhalgh1 wrote:
Thanks for the detailed info. Sadly I don't have the skills nor equipment for such work. _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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buggz
Joined: 22 Jun 2011 Posts: 44
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Posted: Mon Oct 06, 2014 12:43 am Post subject: |
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buggz wrote:
Kind of chilly this AM.
Never fails, get a new lens, or something, weather doesn't cooperate.
I got this one before the winds came back "online".
At least the wind wasn't blowing like yesterday.
I LOVE the velvet helicoil, works GREAT!
Canon 5DMkII and modified Meopta Meostigmat 70/1.4:
sleeping bumble bee |
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hinnerker
Joined: 17 Aug 2009 Posts: 929 Location: Germany near Kiel
Expire: 2015-08-09
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Posted: Wed Oct 08, 2014 4:26 pm Post subject: |
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hinnerker wrote:
Pancolart wrote: |
BTW Meostigmat 1.4/70 has baffle (aperture) by default. If bottom protection removed, rear element system is 39.7mm wide! IMHO at lest F1.2 optical design.
The removing isn't easy though since one part is holding all rear elements. |
No, entry pupil is still equal to 50mm... what means 70mm divided with entry pupil of 50mm (front lens diameter!)= f1.4, regardles of the rear lens diameter ! It doesnt play a rule in terms of luminosity
You can verify this if you have a look through the front lens of both types... first in original state and comparative to a converted and shortend Canon Version i did.
You will see, that the inner diameter is equal on both Meostigmats...
The modificated Meostigmat on the Canon Version is openend from original baffle diameter of 34.20mm to 37.20mm... and the entry pupil is still the same... !
Cheers
Henry _________________ some light-painting lens stuff..
... and an EOS 5D MKII
www.digicamclub.de |
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Tedat
Joined: 08 Nov 2011 Posts: 800 Location: Berlin/Germany
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Posted: Mon Oct 20, 2014 9:08 am Post subject: |
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Tedat wrote:
_________________ Regards
Jan
flickr
Sony A7RM2
Contax T*: Distagon 4/18, Distagon 2/28, Distagon 1.4/35, PC-Distagon 2.8/35, Planar 1.4/50, Planar 1.4/85, Planar 2/100, Planar 2/135, S-Planar 2.8/60, Tessar 2.8/45, Mirotar 8/500, Vario Sonnar 3.4/35-70, Vario Sonnar 4.5-5.6/100-300
Carl Zeiss for Rollei QBM: F-Distagon 2.8/16 HFT, Distagon 2.8/25, Planar 1.4/50 HFT, Sonnar 2.8/85
Konica Hexanon AR: 2.8/21, 1.2/57
Other: Minolta F2.8 [T4.5] 135mm STF, Meopta Meostigmat 1.4/70, Tokina AT-X 2.5/90.. and lots of early M42 Yashinon, Rikenon and Mamiya lenses |
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Anti88
Joined: 07 Apr 2013 Posts: 37
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Posted: Sun Nov 09, 2014 12:22 pm Post subject: |
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Anti88 wrote:
Maybe you could sell one for Nikon? |
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hinnerker
Joined: 17 Aug 2009 Posts: 929 Location: Germany near Kiel
Expire: 2015-08-09
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Posted: Sun Nov 09, 2014 12:57 pm Post subject: |
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hinnerker wrote:
Anti88 wrote: |
Maybe you could sell one for Nikon? |
Yes, of course...
PM me... _________________ some light-painting lens stuff..
... and an EOS 5D MKII
www.digicamclub.de |
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Pancolart
Joined: 04 Feb 2008 Posts: 3693 Location: Slovenia, EU
Expire: 2013-11-18
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Posted: Mon Nov 10, 2014 8:33 am Post subject: |
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Pancolart wrote:
hinnerker wrote: |
Pancolart wrote: |
BTW Meostigmat 1.4/70 has baffle (aperture) by default. If bottom protection removed, rear element system is 39.7mm wide! IMHO at lest F1.2 optical design.
The removing isn't easy though since one part is holding all rear elements. |
No, entry pupil is still equal to 50mm... what means 70mm divided with entry pupil of 50mm (front lens diameter!)= f1.4, regardles of the rear lens diameter ! It doesnt play a rule in terms of luminosity
You can verify this if you have a look through the front lens of both types... first in original state and comparative to a converted and shortend Canon Version i did.
You will see, that the inner diameter is equal on both Meostigmats...
The modificated Meostigmat on the Canon Version is openend from original baffle diameter of 34.20mm to 37.20mm... and the entry pupil is still the same... !
Cheers
Henry |
Thank you for explanation. But the image circle is slightly bigger if baffle removed (no vignette on Fullframe)? _________________ ---------------------------------
The Peculiar Apparatus Of Victorian Steampunk Photography: 100+ Genuine Steampunk Camera Designs https://www.amazon.com/dp/B0B92829NS |
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hinnerker
Joined: 17 Aug 2009 Posts: 929 Location: Germany near Kiel
Expire: 2015-08-09
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Posted: Mon Nov 10, 2014 9:36 am Post subject: |
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hinnerker wrote:
Pancolart wrote: |
hinnerker wrote: |
Pancolart wrote: |
BTW Meostigmat 1.4/70 has baffle (aperture) by default. If bottom protection removed, rear element system is 39.7mm wide! IMHO at lest F1.2 optical design.
The removing isn't easy though since one part is holding all rear elements. |
No, entry pupil is still equal to 50mm... what means 70mm divided with entry pupil of 50mm (front lens diameter!)= f1.4, regardles of the rear lens diameter ! It doesnt play a rule in terms of luminosity
You can verify this if you have a look through the front lens of both types... first in original state and comparative to a converted and shortend Canon Version i did.
You will see, that the inner diameter is equal on both Meostigmats...
The modificated Meostigmat on the Canon Version is openend from original baffle diameter of 34.20mm to 37.20mm... and the entry pupil is still the same... !
Cheers
Henry |
Thank you for explanation. But the image circle is slightly bigger if baffle removed (no vignette on Fullframe)? |
Yes, of course. Thats why i did this modification. I do use this "Biotar" - type lens on Canon 5D MKII, Sony A7 FF und other FF cams as well.
As you can see, after my modification the baffle is completely gone and also the rear lens part of the tube was machined down to a diameter, which will allow to intrude into the 52mm reverse rings, i do use for the different cams on my 52.5mm Velvet Helicoid
The reason for this new shape of lens housing is the possibility to intrude into the cam mounts, which have different diameters.
For my "velvet helicoid" with interchangeable cam mounts i did choose the smallest possible diameter.
This is the lens "intrusion" into the adapter plate...
And this shows how the 18pitch thread will work with the velvet stripes adhesives...
For those of the readers who are interested in a cheap Biotar alternativ on a FF DSLR a very usefull and cheap way to get the "Biotar" signature...
Cheers
Henry _________________ some light-painting lens stuff..
... and an EOS 5D MKII
www.digicamclub.de |
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kds315*
Joined: 12 Mar 2008 Posts: 16498 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Mon Nov 10, 2014 9:41 am Post subject: |
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kds315* wrote:
I'm interested in such a "velvet" solution. How much do you charge for one with lens Henry? _________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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hinnerker
Joined: 17 Aug 2009 Posts: 929 Location: Germany near Kiel
Expire: 2015-08-09
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Posted: Mon Nov 10, 2014 10:04 am Post subject: |
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hinnerker wrote:
kds315* wrote: |
I'm interested in such a "velvet" solution. How much do you charge for one with lens Henry? |
A "short" Meostigmat 1.4/70mm lens including the Velvet-Helicoid with the prefered mount is priced at 235 Euro + Shipping
The advantage with such a "short" Meostigmat 1.4/70mm is the possibility to use the lens in association with an aperture adapter like this...
http://www.ebay.de/itm/Objektive-Adapter-fur-Canon-EF-an-Micro-M-4-3-E-P3-E-P2-GF2-G3-Mit-Blende-DC176-/331290136809?pt=DE_Foto_Camcorder_Objetivanschl%C3%BCsse_Adapter&hash=item4d226e50e9
Therefore its necessary to prepair the velvet helicoid-tube with a 52mm to Canon EOS macro reverse ring (filterthread) instead of using a 52mm to µFT reverse ring which you would normally use on your µFT cam, Klaus.
This aperture adapter will work with the modified Meostigmat 1.4/70mm also on APS-C cams. For fullframe cams this will not work with an aperture adapter because aperture will causing heavy vignetting the exit pupil.
But for APS-C and µFT this will work fine on my NEX 7 and Olympus EP1 µFT.
On µFT cams you can use also the other Meostigmat lenses like 1.3/35mm / 1/50mm / 1/70mm after a small modification on the barrel.
If you are interested in a complete package of this other lenses, let me know via PM.
Cheers
Henry _________________ some light-painting lens stuff..
... and an EOS 5D MKII
www.digicamclub.de
Last edited by hinnerker on Tue Feb 24, 2015 10:16 am; edited 1 time in total |
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jailbreakdream
Joined: 14 Jan 2015 Posts: 6
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Posted: Wed Jan 28, 2015 2:06 am Post subject: |
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jailbreakdream wrote:
Hi, I had receive the lens from Malaysia!!!!
_________________ terence4y |
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Attila
Joined: 24 Feb 2007 Posts: 57840 Location: Hungary
Expire: 2021-11-18
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Posted: Wed Jan 28, 2015 3:25 am Post subject: |
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Attila wrote:
jailbreakdream wrote: |
Hi, I had receive the lens from Malaysia!!!!
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_________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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Attila
Joined: 24 Feb 2007 Posts: 57840 Location: Hungary
Expire: 2021-11-18
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Posted: Wed Jan 28, 2015 3:25 am Post subject: |
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Attila wrote:
Great ! Nice to see you here! _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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jailbreakdream
Joined: 14 Jan 2015 Posts: 6
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Posted: Wed Jan 28, 2015 7:04 am Post subject: |
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jailbreakdream wrote:
hi Attila, is you!!!!! let post more on fb group!!! nice to see u. _________________ terence4y |
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jailbreakdream
Joined: 14 Jan 2015 Posts: 6
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Posted: Wed Jan 28, 2015 2:01 pm Post subject: |
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jailbreakdream wrote:
My rush trial when return from work
_________________ terence4y |
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jailbreakdream
Joined: 14 Jan 2015 Posts: 6
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Posted: Wed Feb 04, 2015 6:52 am Post subject: |
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jailbreakdream wrote:
my few shot with this lenses _________________ terence4y |
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hinnerker
Joined: 17 Aug 2009 Posts: 929 Location: Germany near Kiel
Expire: 2015-08-09
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Posted: Wed Feb 04, 2015 8:21 am Post subject: |
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hinnerker wrote:
Looks great... whow.
Phantastic shots... !!!
regards
Henry _________________ some light-painting lens stuff..
... and an EOS 5D MKII
www.digicamclub.de |
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