View previous topic :: View next topic |
Author |
Message |
RioRico
Joined: 12 Mar 2010 Posts: 1120 Location: California or Guatemala or somewhere
|
Posted: Sat Mar 19, 2011 8:08 pm Post subject: Steinheil Culminar VL 135/4.5 -- remove LTM body for bellows |
|
|
RioRico wrote:
I'm not sure if this belongs in REPAIRS or ADAPTERS or here, so here goes:
I recently bought a Steinheil Culminar VL 135/4.5 on a Leica-LTM focusing body. I want to use the lens on bellows. I have another Culminar VL, a 105/4.5, that came on a Bellowscope. But I cannot see how to remove the lens from the LTM body, for which I have no need. Has anyone here successfully pulled a VL lens from its body? Thanks. _________________ Too many film+digi cams+lenses, oh my -- Pentax K20D, K-1000, M42s, more
The simple truth is this: There are no neutral photographs. --F-Stop Fitzgerald |
|
Back to top |
|
|
luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
|
Posted: Sun Mar 20, 2011 2:29 am Post subject: |
|
|
luisalegria wrote:
I have pulled the lens head from an Exakta version.
The thing just unscrews. Its an M40 thread btw. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
|
Back to top |
|
|
RioRico
Joined: 12 Mar 2010 Posts: 1120 Location: California or Guatemala or somewhere
|
Posted: Sun Mar 20, 2011 4:29 am Post subject: |
|
|
RioRico wrote:
On my copy, the front element (with M40 thread) unscrews easily from the head section. The rest of the head section, with iris and rear elements, does not unscrew when I apply my fairly strong hand pressure.
Just behind the head section's 21mm-wide aperture ring is gnurled ring and section with distance markings (in feet), secured by grub screws. That ring-and-section are about 32mm wide. With the screws removed, that section slides up about 4mm, against the aperture ring.
Sliding that section up does not reveal any useful features of the long body, which bears the aperture DOF markings. What *is* revealed are about half of two 6mm diameter holes on opposite sides of the long body. The holes are filled with black metal, which seems to be the lower extension of the head section. Feeling inside with a finger, that extension stops just below those two holes.
I had thought that VL lenses were meant to be unscrewed form focusing bodies, to allow bellows use. Did Steinheil build their Leica-mount VL's differently?
Possibly my only option is to cut the body off, just below those holes. I really don't want to do that. For one thing, it is physical WORK. (I am quite lazy.) And it would destroy the body. The lens only cost me US$20, but I would rather sell it than destroy it. _________________ Too many film+digi cams+lenses, oh my -- Pentax K20D, K-1000, M42s, more
The simple truth is this: There are no neutral photographs. --F-Stop Fitzgerald |
|
Back to top |
|
|
luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
|
Posted: Sun Mar 20, 2011 5:01 am Post subject: |
|
|
luisalegria wrote:
Post pictures, lets have a look. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
|
Back to top |
|
|
std
Joined: 09 Feb 2010 Posts: 1826 Location: Bulgaria
|
Posted: Sun Mar 20, 2011 10:54 am Post subject: |
|
|
std wrote:
I had this lens in exakta mount and i think the front was fully detachable. Actually the lens itself including the aperture assembly is very short and can come off in one piece.
check the pictures here: Click here to see on Ebay
Doed yours looks like this? |
|
Back to top |
|
|
calvin83
Joined: 12 Apr 2009 Posts: 7555 Location: Hong Kong
|
Posted: Sun Mar 20, 2011 2:08 pm Post subject: |
|
|
calvin83 wrote:
std wrote: |
I had this lens in exakta mount and i think the front was fully detachable. Actually the lens itself including the aperture assembly is very short and can come off in one piece.
check the pictures here: Click here to see on Ebay
Doed yours looks like this? |
Hi,
Can you tell me the size of the screw mount. Is it M39x1 or M42x1?
Thanks _________________ https://lensfever.com/
https://www.instagram.com/_lens_fever/
The best lens is the one you have with you. |
|
Back to top |
|
|
RioRico
Joined: 12 Mar 2010 Posts: 1120 Location: California or Guatemala or somewhere
|
Posted: Thu Mar 24, 2011 7:29 pm Post subject: |
|
|
RioRico wrote:
Sorry for the delay. Here are pictures. First, the product shots when I thought I might sell it, then shots of what I could move or remove from the lens.
What I can feel inside the lens, but can't show because I don't have an endoscope, is that a thick inner sleeve (threaded black metal) of the upper lens body (the front section) seems to extend as far back as the holes revealed when the aperture ring is pushed forward. Those holes are visible in the bottom pictures.
In the bottom right picture (next to the 6,5 mark) the black metal does not seem to extend into the hole. In the bottom left picture (next to the 50 mark) the hole is filled with black metal. I suspect that is a screw or plug that extends into the inner sleever, preventing the lens' front section from being removed. _________________ Too many film+digi cams+lenses, oh my -- Pentax K20D, K-1000, M42s, more
The simple truth is this: There are no neutral photographs. --F-Stop Fitzgerald |
|
Back to top |
|
|
luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
|
Posted: Thu Mar 24, 2011 11:59 pm Post subject: |
|
|
luisalegria wrote:
Yours is similar to mine, but not quite the same. Its possible that the lens head on yours is not so easily separable.
The thread for the lens head on yours would seem to be just above the knurling on the focus ring.
Have you tried grabbing the whole head above the focus ring and unscrewing it ? It may be a bit tight. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
|
Back to top |
|
|
RioRico
Joined: 12 Mar 2010 Posts: 1120 Location: California or Guatemala or somewhere
|
Posted: Fri Mar 25, 2011 4:33 am Post subject: |
|
|
RioRico wrote:
luisalegria wrote: |
Yours is similar to mine, but not quite the same. Its possible that the lens head on yours is not so easily separable. |
Yes, the front section (lens head) is not easily separable.
Quote: |
The thread for the lens head on yours would seem to be just above the knurling on the focus ring.
Have you tried grabbing the whole head above the focus ring and unscrewing it ? It may be a bit tight. |
There is nothing to grab except the aperture ring, which shows no sign of going anywhere. The focus ring is actually a focus-mark ring; the body focuses under it. That focus-mark ring extends under the aperture ring on the lens head, so I have no bit of lens body nor head to grip there. Of the lens head, between the front element and the aperture ring, only 2mm is exposed, just not enough to grab.
Could Steinheil have built their Leica-mount lenses differently than for other mounts? Oh, I hope not... _________________ Too many film+digi cams+lenses, oh my -- Pentax K20D, K-1000, M42s, more
The simple truth is this: There are no neutral photographs. --F-Stop Fitzgerald |
|
Back to top |
|
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|