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iangreenhalgh1
Joined: 18 Mar 2011
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 Posted: Tue Jul 19, 2011 3:56 pm Post subject: Schneider-Kreuznach TV-Proclar 1.2/135 |
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iangreenhalgh1 wrote:
Hi folks
I just acquired three of these TV-Proclar f1.2 135mm lenses from an old rear projection TV.
Unable to find any info about them, anyone know anything about them or even used one?
They are huge things with 112mm diameter front element. Definitely coated as they have a deep purple colouration, rear focal distance seem pretty short, might be able to trim the barrel somewhat though.
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kawasakiguy37
Joined: 13 Jul 2010
Posts: 132
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| Posted: Tue Jul 19, 2011 5:30 pm Post subject: |
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kawasakiguy37 wrote:
Never heard of them, but are they even usable on an SLR?
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iangreenhalgh1
Joined: 18 Mar 2011
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| Posted: Tue Jul 19, 2011 5:36 pm Post subject: |
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iangreenhalgh1 wrote:
Who knows, I will have to experiment.
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Tue Jul 19, 2011 6:04 pm Post subject: Re: Schneider-Kreuznach TV-Proclar 1.2/135 |
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martyn_bannister wrote:
| iangreenhalgh1 wrote: |
Hi folks
I just acquired three of these TV-Proclar f1.2 135mm lenses from an old rear projection TV.
Unable to find any info about them, anyone know anything about them or even used one?
They are huge things with 112mm diameter front element. Definitely coated as they have a deep purple colouration, rear focal distance seem pretty short, might be able to trim the barrel somewhat though. |
Got any piccys of them?? |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
Expire: 2014-01-07
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| Posted: Tue Jul 19, 2011 7:43 pm Post subject: |
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iangreenhalgh1 wrote:
Sadly noy, I'm film only atm as the battery for my EOS won't charge anymore, only bought it 4 months ago, damn dodgy Chinese batteries!
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Tue Jul 19, 2011 7:53 pm Post subject: |
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martyn_bannister wrote:
| iangreenhalgh1 wrote: |
| Sadly noy, I'm film only atm as the battery for my EOS won't charge anymore, only bought it 4 months ago, damn dodgy Chinese batteries! |
Make sure it's not the charger. I had a problem with my 10D where the light would flash and then come on full to say the battery was charged, but it wasn't at all. Battery was fine. Charger was b*ggered. |
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buggz
Joined: 22 Jun 2011
Posts: 44
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| Posted: Tue Jul 19, 2011 11:24 pm Post subject: |
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buggz wrote:
Just a guess, but, aren't all the lenses designated/marked TV, for TV cameras?
I further guess, it would be closely comparable to a C(Cine) mount lens? |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
Expire: 2014-01-07
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| Posted: Wed Jul 20, 2011 1:56 am Post subject: |
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iangreenhalgh1 wrote:
No, these are from a rear projection TV, they are projection lenses, there is no mount at all, just four lugs where they were screwed to a base plate.
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kawasakiguy37
Joined: 13 Jul 2010
Posts: 132
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| Posted: Wed Jul 20, 2011 6:44 am Post subject: |
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kawasakiguy37 wrote:
Is there a way to measure the flange distance it was designed for?
Get that battery fixed!
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Nikkor
75-150 series E
105 2.0 DC
28 2.0 AIS
T-mount bellows + Spiratone 75mm Flat Field macro
300 4.0 CZJ F |
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ZoneV
Joined: 09 Nov 2009
Posts: 1632
Location: Germany
Expire: 2011-12-02
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| Posted: Wed Jul 20, 2011 9:38 am Post subject: |
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ZoneV wrote:
From the application they are designed for one can make some asumptions:
Fast to give bright image - ok that was simple.
Furthermore optimized for a very high image contrast - but low resolution.
But I am very eager to see images made with such a lens  Dreamy background with very short DOF - but is sharpness ok?
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pat donnelly
Joined: 19 Jan 2010
Posts: 666
Location: Brisbane, Australia
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| Posted: Wed Jul 20, 2011 9:38 am Post subject: |
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pat donnelly wrote:
Identical or designated R, G, B?
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Wed Jul 20, 2011 12:19 pm Post subject: |
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martyn_bannister wrote:
| pat donnelly wrote: |
| Identical or designated R, G, B? |
That's a good thought, perhaps the coatings/optics are specifically designed individually for a particular colour 
Come on Ian, get that battery fixed |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
Expire: 2014-01-07
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| Posted: Wed Jul 20, 2011 12:59 pm Post subject: |
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iangreenhalgh1 wrote:
They look identical rather than colour specific.
I've ordered a new battery but it will be on a slow boat from China...
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Wed Jul 20, 2011 1:37 pm Post subject: |
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martyn_bannister wrote:
| iangreenhalgh1 wrote: |
They look identical rather than colour specific.
I've ordered a new battery but it will be on a slow boat from China... |
Jump start the old one from a car battery - as long as you take the leads off before it gets too warm you'll be OK! |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
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| Posted: Wed Jul 20, 2011 3:20 pm Post subject: |
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iangreenhalgh1 wrote:
I binned it, was crap from day one, every charge it lasted less time than before until it got to the point where it didn't hold a charge at all, never buy generic Chinese batteries, this one was really garbage.
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Wed Jul 20, 2011 4:27 pm Post subject: |
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martyn_bannister wrote:
| iangreenhalgh1 wrote: |
| I binned it, was crap from day one, every charge it lasted less time than before until it got to the point where it didn't hold a charge at all, never buy generic Chinese batteries, this one was really garbage. |
So how come your next one is on a slow boat from.............. China? 
I sympathise. I have managed to revive batteries like this with a jolt charge, but it's never permanent. Once they start to go, that's normally it. |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
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| Posted: Wed Jul 20, 2011 11:39 pm Post subject: |
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iangreenhalgh1 wrote:
Because I've bought three and the supplier will replace them if they die, it cost less for three from this supplier than one Uniross one in my local camera shop.
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kawasakiguy37
Joined: 13 Jul 2010
Posts: 132
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| Posted: Sat Jul 23, 2011 1:17 am Post subject: |
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kawasakiguy37 wrote:
Pretty sure the three lenses are RGB, especially if its an old project TV.
Any more info how this turned out? Borrow a friends camera for crying out loud! I wanna see how this thing performs (or I might have to go cannabilize some TV myself)
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Nikkor
75-150 series E
105 2.0 DC
28 2.0 AIS
T-mount bellows + Spiratone 75mm Flat Field macro
300 4.0 CZJ F |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
Expire: 2014-01-07
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| Posted: Sat Jul 23, 2011 3:59 pm Post subject: |
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iangreenhalgh1 wrote:
I'll get pics posted ASAP, rear projections TVs were thousands a few years ago and are now almost worthless so are available very cheap secondhand, the Sony ones had Schneider lenses, not sure about the others.
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iangreenhalgh1
Joined: 18 Mar 2011
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| Posted: Sat Jul 30, 2011 1:53 pm Post subject: |
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iangreenhalgh1 wrote:
Here are a couple of pics, these are colossal lenses. I think they are for a component video system as they have Cyan, Magenta and Yelllow coloured coatings.
The small lens sat on top is a Canon FL 2.5/35 for scale.
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nixland
Joined: 30 Jan 2011
Posts: 577
Expire: 2012-07-29
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| Posted: Mon Aug 01, 2011 1:56 pm Post subject: |
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nixland wrote:
Please do the modification ASAP.
I can't wait to see the result
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std
Joined: 09 Feb 2010
Posts: 1826
Location: Bulgaria
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| Posted: Mon Aug 01, 2011 2:31 pm Post subject: |
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std wrote:
Those are huge
I will look at the thread too- it is interesting to see what will come from those lenses.
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My lens list:
SLR MD: Rokkor 1,7/50 Exakta: Kilfitt-Makro-Kilar E 3.5/4cm; CZJ 2/50 Pancolar;M42: CZJ 2.8/50 Tessar; Mir-1B 2.8/37; Jupiter-9 2/85 T-mount: Tamron 5.9/200; Tamron 6.9/300; Tamron 7.5/400 C-mount: Cosmicar 1.8/50 Y/S: Sun 3.5/38-90, Sun 4/70-210 RF Contax RF: Jupiter-8 2/50; Contax G:CZ 2,8/21 Biogon T; CZ 2,8/28 Biogon T; CZ 2/35 Planar T; CZ 2/45 Planar T; CZ 2,8/90 Sonnar T |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
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| Posted: Mon Aug 01, 2011 3:25 pm Post subject: |
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iangreenhalgh1 wrote:
Well, the lenses are in two pieces, I took one apart and there is an optical block that appears to be the lens and a mount which has a strange rear element in it. This element is tinted (in this case, blue) and is flat at the back but extremely concave at the front. It appears the colouration I was seeing isn't the coatings or the lens itself, it's just the rear element.
It is going to be a reall challenge to get one of these working as a camera lens. If I do successfully convert one, I'll convert the other two and offer them for sale here.
I think I might have to email Schneider for some data on these lenses.
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enzodm
Joined: 11 Sep 2010
Posts: 350
Location: Italy
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| Posted: Mon Aug 01, 2011 3:39 pm Post subject: |
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enzodm wrote:
| iangreenhalgh1 wrote: |
| Well, the lenses are in two pieces, I took one apart and there is an optical block that appears to be the lens and a mount which has a strange rear element in it. This element is tinted (in this case, blue) and is flat at the back but extremely concave at the front. It appears the colouration I was seeing isn't the coatings or the lens itself, it's just the rear element. |
they are aimed at projecting R, G and B colours separately. If the back element contributes to optical scheme (likely it is, since is not just a flat filter), best thing is to use them for b/w.
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Canon 60D, Tamron 17-50VC, Canon 55-250IS, Sigma 50-150/2.8 plus:
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In the middle: Cyclop 85/1.5, Nikon 100/2.8
135s: Tamron 135/2.5, CZJ Sonnar 135/3.5, Jupiter 135/3.5, CZJ Triotar 135/4, Tamron Twin Tele 135-225
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
Expire: 2014-01-07
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| Posted: Mon Aug 01, 2011 4:20 pm Post subject: |
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iangreenhalgh1 wrote:
| enzodm wrote: |
| iangreenhalgh1 wrote: |
| Well, the lenses are in two pieces, I took one apart and there is an optical block that appears to be the lens and a mount which has a strange rear element in it. This element is tinted (in this case, blue) and is flat at the back but extremely concave at the front. It appears the colouration I was seeing isn't the coatings or the lens itself, it's just the rear element. |
they are aimed at projecting R, G and B colours separately. If the back element contributes to optical scheme (likely it is, since is not just a flat filter), best thing is to use them for b/w. |
Yes, I have a feeling they will only work for BW. Rather than being RGB, they are Cyan, Magenta and Yellow. Component video can be either RGB or CMYK (K being black so is not projected).
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