landscape lens with what type adjustment screw ?
|
View:
New views
11 Messages
—
Rating Filter:
Alert me
|
 |
landscape lens with what type adjustment screw ?
by DColucci
::
Rate this Message:
now that I have Milan's attention...
I bought this very nice Anthony (GOC?) Eureka 4x5.
 It is quite nice and has some details that differ from Larry's Eureka
here:
Like a nice beveled edge to the front face and only 5 joints compared
to Larry's 6...plus other details I will bore you with later....
 But alas, when it arrived, the lens adjustment screw is missing. I
would have expected some type of radial or tang drive - not one screw.....
before a take it apart more, what type of screw is missing and how did it work ?
some type of worm screw that would move the doublet ? Detail shot
  The next shot shows the front of the lens off with cap, push in stop
(inserted) and friction fit retaining ring.
 Start the year off right. Easy ways to stay in shape in the new year. |
|
|
RE: landscape lens with what type adjustment screw ?
by Bob Kulinski
::
Rate this Message:
Some parts of this message have been removed.
Learn more about Nabble's security policy.
Dan - nice camera - could it just be a push pull lens and the missing screw just locked it in place?
From: woodandbrass-bounces@... [woodandbrass-bounces@...] On Behalf Of DColucci@... [DColucci@...] Sent: Wednesday, January 23, 2008 2:34 PM To: woodandbrass@... Subject: [W&B] landscape lens with what type adjustment screw ? now that I have Milan's attention...
I bought this very nice Anthony (GOC?) Eureka 4x5.
 It is quite nice and has some details that differ from Larry's Eureka here:
Like a nice beveled edge to the front face and only 5 joints compared to Larry's 6...plus other details I will bore you with later....
 But alas, when it arrived, the lens adjustment screw is missing. I would have expected some type of radial or tang drive - not one screw..... before a take it apart more, what type of screw is missing and how did it work ? some type of worm screw that
would move the doublet ? Detail shot
  The next shot shows the front of the lens off with cap, push in stop (inserted) and friction fit retaining ring.
 Start the year off right. Easy ways to stay in shape in the new year. |
|
|
RE: landscape lens with what type adjustment screw ?
by Milan Zahorcak*
::
Rate this Message:
Dan,
Bob is probably
correct; it's probably a locking screw for the slip-focus.
The lens is likely
to be Darlot, so if you have a #2 Hemispherique Rapide somewhere, try swapping
the locking screw:
 If it fits,then
it's probably metric, but very close to a NSF 10-32 which aren't all that easy
to find either.
Regards,
mz
|
|
|
Re: landscape lens with what type adjustment screw ?
by Dan Colucci
::
Rate this Message:
|
|
|
RE: landscape lens with what type adjustment screw ?
by Dan Colucci
::
Rate this Message:
maybe its not gear cut....just cut to make it a bit pliable to allow the screw to press into the lens?
________________________________ From: woodandbrass-bounces@... on behalf of Milan Zahorcak Sent: Wed 1/23/2008 4:18 PM To: 'Collectors of 19th Century Cameras &Photographica' Subject: RE: [W&B] landscape lens with what type adjustment screw ? Dan, Bob is probably correct; it's probably a locking screw for the slip-focus. The lens is likely to be Darlot, so if you have a #2 Hemispherique Rapide somewhere, try swapping the locking screw: <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20landscape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multipart/Darlot-screw.jpg> If it fits,then it's probably metric, but very close to a NSF 10-32 which aren't all that easy to find either. Regards, mz -----Original Message----- From: woodandbrass-bounces@... [mailto:woodandbrass-bounces@...] On Behalf Of DColucci@... Sent: Wednesday, January 23, 2008 11:35 AM To: woodandbrass@... Subject: [W&B] landscape lens with what type adjustment screw ? now that I have Milan's attention... I bought this very nice Anthony (GOC?) Eureka 4x5. <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20landscape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multipart/mz.jpg> It is quite nice and has some details that differ from Larry's Eureka here: http://www.fiberq.com/cam/anthony/eureka.htm Like a nice beveled edge to the front face and only 5 joints compared to Larry's 6...plus other details I will bore you with later.... <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20landscape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multipart/mz5.jpg> But alas, when it arrived, the lens adjustment screw is missing. I would have expected some type of radial or tang drive - not one screw..... before a take it apart more, what type of screw is missing and how did it work ? some type of worm screw that would move the doublet ? Detail shot <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20landscape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multipart/mz1.jpg> <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20landscape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multipart/mz2.jpg> The next shot shows the front of the lens off with cap, push in stop (inserted) and friction fit retaining ring. <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20landscape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multipart/mz3.jpg> ________________________________ Start the year off right. Easy ways to stay in shape <http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489> in the new year. |
|
|
RE: landscape lens with what type adjustment screw ?
by Milan Zahorcak*
::
Rate this Message:
Hmmm . . . are there two you, Dan? Have you tried to push or pull it? The lens . . . No doubt, the cuts are to form a flap which can be pressed against the inner barrel. mz -----Original Message----- From: Dan Colucci [mailto:woodandbrass-bounces@...] On Behalf Of Dan Colucci Sent: Wednesday, January 23, 2008 1:52 PM To: Collectors of 19th Century Cameras &Photographica Subject: RE: [W&B] landscape lens with what type adjustment screw ? maybe its not gear cut....just cut to make it a bit pliable to allow the screw to press into the lens? _____ From: woodandbrass-bounces@... on behalf of Milan Zahorcak Sent: Wed 1/23/2008 4:18 PM To: 'Collectors of 19th Century Cameras &Photographica' Subject: RE: [W&B] landscape lens with what type adjustment screw ? Dan, Bob is probably correct; it's probably a locking screw for the slip-focus. The lens is likely to be Darlot, so if you have a #2 Hemispherique Rapide somewhere, try swapping the locking screw: <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20lands cape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multip art/Darlot-screw.jpg> If it fits,then it's probably metric, but very close to a NSF 10-32 which aren't all that easy to find either. Regards, mz -----Original Message----- From: woodandbrass-bounces@... [mailto:woodandbrass-bounces@...] On Behalf Of DColucci@... Sent: Wednesday, January 23, 2008 11:35 AM To: woodandbrass@... Subject: [W&B] landscape lens with what type adjustment screw ? now that I have Milan's attention... I bought this very nice Anthony (GOC?) Eureka 4x5. <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20lands cape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multip art/mz.jpg> It is quite nice and has some details that differ from Larry's Eureka here: http://www.fiberq.com/cam/anthony/eureka.htm Like a nice beveled edge to the front face and only 5 joints compared to Larry's 6...plus other details I will bore you with later.... <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20lands cape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multip art/mz5.jpg> But alas, when it arrived, the lens adjustment screw is missing. I would have expected some type of radial or tang drive - not one screw..... before a take it apart more, what type of screw is missing and how did it work ? some type of worm screw that would move the doublet ? Detail shot <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20lands cape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multip art/mz1.jpg> <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20lands cape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multip art/mz2.jpg> The next shot shows the front of the lens off with cap, push in stop (inserted) and friction fit retaining ring. <https://webmail.thehearth.org/exchange/colucci/Drafts/RE:%20[W%26B]%20lands cape%20lens%20with%20what%20type%20adjustment%20screw%20_x003F_.EML/1_multip art/mz3.jpg> _____ Start the year off right. Easy ways to stay in shape <http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489> in the new year. |
|
|
|
|
|
|
|
|
RE: Re: landscape lens with what type adjustment screw ?
by Milan Zahorcak*
::
Rate this Message:
It happens.
Landscape lenses tend to run long.
What's the draw
from the plane of flange to the plane of the GG at full
extension?
mz
|
|
|
RE: Re: landscape lens with what type adjustment screw ?
by Dan Colucci
::
Rate this Message:
it depends on how much I
am willing to stretch the bellows, but roughly 7 inches From: woodandbrass-bounces@... [mailto:woodandbrass-bounces@...] On Behalf Of Milan Zahorcak Sent: Monday, January 28, 2008 9:46 AM To: 'Collectors of 19th Century Cameras &Photographica' Subject: RE: [W&B] Re: landscape lens with what type adjustment screw ? It happens.
Landscape lenses tend to run long.
What's the draw
from the plane of flange to the plane of the GG at full
extension?
mz
|
|
|
RE: Re: landscape lens fitting
by Milan Zahorcak*
::
Rate this Message:
On the smaller
cameras, the landscape was invariably the longest lens, and often the one most
commonly found, as the smaller formats were generally
the less-expensive amateur models. But the maker wouldn't expect you
to have the bellows at full stretch.
Infinity has
the shortest draw and you'd need say another 1" or so for closer
work. So let's back into an infinity draw. Assume that you have a
max of 7" to work with, back off 1" for simple slack, 1" for near focus,
that means your "regular" lens would only have about 5" of back focus to cover a
4x5 at infinity - frankly that doesn't sound like a landscape lens to me.
In theory you need
about a 6.5" lens to cover a 4x5. So it sounds like the lens you have
might be for 4x5, but on a camera with more draw.
On this camera,
maybe an RR lens? . . . but those would be much smaller and then you run
into the size of the existing hole. I've got some flanges that have
associated step-down rings - those are rarely seen, but are quite
clever.
What is the length of the camera from the front of the front
panel to the end of the rail? How big is the hole?
mz
-----Original Message-----
From: woodandbrass-bounces@... [mailto:woodandbrass-bounces@...] On Behalf Of Dan Colucci Sent: Monday, January 28, 2008 6:52 AM To: Collectors of 19th Century Cameras &Photographica Subject: RE: [W&B] Re: landscape lens with what type adjustment screw ?
|
winmail.dat (253K) 
| Free Forum Powered by Nabble | Forum Help |