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Old October 13th, 2004, 08:20 PM   #166
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Rai, are you saying that p+s uses the Angenieux as their relay lens? or are you saying that they use another companies lens as their relay lens, one that we could purchase on our own. If so, that is great news, as the relay lens is where most of us are stuck on our xl1 systems.

stephen
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Old October 13th, 2004, 08:38 PM   #167
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1. We need to figure out what focal length we need for our relay lens.
2. we need to figure out what focal length we need for our condensor lens (hot spot issues).

our options for relay lens are:
a. using a standard 35mm lens with some sort of mount adapter
b. using an achromatic doublet and fashioning our own mount system.


I did some research today. My first concern is to figure out what focal length relay lens we need.

If I had taken a geometry class, I would be able to solve this very easily, so maybe I can get some help.

if we know the angle of view of various focal lengths, and we know approximate distance from film plane, than with the angle of views, we can calculate the focal length.

here is the info I have:
in 35mm fl
14mm-81 degrees
17mm-70 degrees
20mm-61 degrees
24mm-53 degrees
28mm-46 degrees
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Old October 14th, 2004, 12:24 AM   #168
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No it's there, Mike has the first post, I was just adding onto his idea.

There are probably many patents, most defunct, so just aviode the non-defunct ones. PS-Technics can try, but where ever they can suceed is another thing, they need to have the right/right patent, otherwise they can just make life miserable. As I said this is an old subject int he Agnus/Alder threads, they might like to get involved.
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Old October 14th, 2004, 06:30 AM   #169
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stephen, read carefully what rai wrote.
Everything is in the first paragraph: Schneider Kreuznach 25mm f 1:0,95 - the only thing to change is the mount (from c-mount to xl-mount).

dietmar
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Old October 14th, 2004, 07:50 AM   #170
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Look at this

http://de.geocities.com/raiorz/vibro_old/relaislens_1.jpg

My company have made the Canon Lens Adataper.
And also all other parts you need for a 35mm vibration solution. The case is ALU, it have 2 build-in light weight support rods. The vibration drive need 6V DC, but only 35mA
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Old October 14th, 2004, 08:06 AM   #171
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look at this

http://de.geocities.com/raiorz/vibro...laislens_1.jpg

Its only the relaislens, but original the same like P+S.
My company have made the Canon Lens Adataper.
And also all other parts you need for a 35mm vibration solution. The case is ALU, it have 2 build-in light weight support rods. The vibration drive need 6V DC, but only 35mA.
We cant sell the adapter (because P+S patent etc.) but maybe the parts
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Old October 14th, 2004, 08:09 AM   #172
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look at this

http://de.geocities.com/raiorz/vibro_old/relaislens_1.jpg

Its only the relaislens, but original the same like P+S.
My company have made the Canon Lens Adataper.
And also all other parts you need for a 35mm vibration solution. The case is ALU, it have 2 build-in light weight support rods. The vibration drive need 6V DC, but only 35mA.
We cant sell the adapter (patent etc.) but maybe the parts
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Old October 14th, 2004, 08:42 AM   #173
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Rai: why would this have anything to do with the P+S patents?
From the looks of it your adapter has no rotating or vibrating
ground glass?
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Old October 14th, 2004, 08:55 AM   #174
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I just bought a relaylens from P+S for 1090 euro. But it doesn't look exactly like the lens you are showing in the link. The iris ring is closer to the camera than the focus ring. But perhaps they are otherwise identical!
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Old October 14th, 2004, 09:08 AM   #175
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Anders,
what is your plan to mount the lens to your camera?
Im curious to know what you find out from your lens, fill me in.

Stephen
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Old October 14th, 2004, 10:33 AM   #176
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Anders,
Schneider Kreuznach made the inside lenses but the Housing came in differnt design and under differnt names (Angenieux or Schneider Kreuznach or others). But inside it is the same
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Old October 14th, 2004, 10:59 AM   #177
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So basically, if you buy the relay lense from Schneider, you then have to mount your own ground glass in front of it, and somehow connect a mount (PL, Nikon, whatever) to the ground glass.
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Old October 14th, 2004, 11:01 AM   #178
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Look at this

http://de.geocities.com/raiorz/vibro_old/relaislens_1.jpg

My company have made the Canon Lens Adataper.
And also all other parts you need for a 35mm vibration solution. The case is ALU, it have 2 build-in light weight support rods. The vibration drive need 6V DC, but only 35mA


Great. How much does it cost to make? Are you going to distribute plans or are you willing to make more and sell them?
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Old October 14th, 2004, 11:08 AM   #179
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And I'm assuming, the plans.

How much are the parts going to cost?
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Old October 14th, 2004, 08:43 PM   #180
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My estimate: 1100 Euro for the lens and 300 USD for the kit.
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