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Rusty
Joined: 06 Nov 2008
Posts: 435
Location: Mosselbay, South Africa
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 Posted: Thu Apr 29, 2010 2:49 pm Post subject: I have no clue......my smallest wide angle |
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Rusty wrote:
Found this little one in a box of jumble , attached to a plate labeled "acura" and gave it a try !
My smallest lens by far !
FOV is about 28-35mm it has a fixed iris of about f8 and the format it covers is quite large ( i can tilt it 30 degrees and still no dark sides projected on sensor)
Mounted straight onto a adapter infinity focus is possible by screwing the lens on its own thread (12mm diam) into the light it shows 5 reflections inside
shown compared to the 55mm tak
Mounted on the cam
infinity performance is not good with low contrast but there is some fungus on the front element
Some closer samples
No markings at all on the lens any ideas anyone ?
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Daniel |
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fish4570
Joined: 06 Jan 2010
Posts: 4514
Location: At the confluence of the Locust Fork of the Warrior River and Black Creek, Alabama
Expire: 2012-03-21
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| Posted: Thu Apr 29, 2010 3:08 pm Post subject: |
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fish4570 wrote:
Perhaps a component of something larger?
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Paul
I chase Light
http://blackcreekjournal.blogspot.com/ |
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martinsmith99
Joined: 31 Aug 2008
Posts: 6950
Location: S Glos, UK
Expire: 2013-11-18
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| Posted: Thu Apr 29, 2010 3:43 pm Post subject: |
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martinsmith99 wrote:
It works well, but it looks even cooler!
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Casual attendance these days |
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CarbonR
Joined: 31 Dec 2008
Posts: 1969
Location: Clermont-Ferrand, France
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| Posted: Thu Apr 29, 2010 5:27 pm Post subject: |
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CarbonR wrote:
This little thing does it very well 
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Cameras : Canon 5D, Pentax K100D, Pentax 6x7, Spotmatic
Lenses : 15mm to 1000mm (24x36)
My websites : [FR & ENG]Takumar - the eyes of the Spotmatic : info about all Takumar lenses // Kogaku - My photo site
I am selling : Takumar lenses and rare Pentax bodies, pm me if you're interested in something [MFLenses feed-back]
Information on Takumar lenses with samples :
Wide angle : Takumar 15/3.5 15mm, Takumar 17/4 17mm, Takumar 18/11 18mm, Takumar 20/4.5 20mm, Takumar 24/3.5 24mm, Takumar 28/3.5 V1 28mm, Takumar 28/3.5 V2 28mm, Takumar 35/2 V1 35mm, Takumar 35/2 V2 35mm, Takumar 35/2.3 35mm, Takumar 35/3.5 35mm, Takumar 35/4 35mm
Standard : Takumar 50/1.4 V1 50mm, Takumar 50/1.4 V2 50mm, Takumar 50/3.5 50mm, Takumar 50/4 50mm, Takumar 55/2 55/1.8 55mm, Takumar 55/2.2 V1 55mm, Takumar 55/2.2 V2 55mm, Takumar 58/2 58mm, Takumar 58/2.4 58mm
Short tele : Takumar 83/1.9 83mm, Takumar 85/1.8 85/1.9 85mm, Takumar 85/1.8 85mm, Takumar 100/2 100mm, Takumar 100/3.5 100mm, Takumar 100/4 100mm, Takumar 105/2.8 V1 105mm, Takumar 105/2.8 V2 105mm, Takumar 120/2.8 120mm
Telephoto : Takumar 135/2.5 V1 135mm, Takumar 135/2.5 V2 135mm, Takumar 135/3.5 V1 135mm, Takumar 135/3.5 V2 135mm, Takumar 150/4 V1 150mm, Takumar 150/4 V2 150mm
Long tele : Takumar 200/3.5 200mm, Takumar 200/4 200mm, Takumar 200/5.6 200mm, Takumar 300/4 V1 300mm, Takumar 300/4 V2 300mm, Takumar 300/4 V3 300mm, Takumar 300/6.3 300mm, Takumar 400/5.6 400mm, Takumar 500/4.5 500mm, Takumar 500/5 500mm, Takumar 1000/8 V1 1000mm, Takumar 1000/8 V2 1000mm
Zoom : Zoom-Takumar 45~125/4 , Zoom-Takumar 70~150/4.5 , Zoom-Takumar 85~210/4.5 , Zoom-Takumar 135~600/6.7
Achromatic : Ultra-Achromatic-Takumar 85/4.5 , Ultra-Achromatic-Takumar 300/5.6 300mm |
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Arctures
Joined: 10 Jul 2009
Posts: 295
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| Posted: Thu Apr 29, 2010 5:41 pm Post subject: |
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Arctures wrote:
Awesome piece of glass here
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Sony A7, NEX-5n, Panasonic GH5(Oly12-40/2. , Contax Distagon T* 28/2.8, Contax Planar T* 50/1.4, Contax T* 80-200/4,
Minolta Rokkor MC 58/1.2, Minolta MC Rokkor-X PF 50/1.7, Minolta MD 50/2.0, Konica Hexanon AR 50/1.8,
Konica Hexanon 57/1.4, Rokkor-PF 55/1.7, Konica Hexanon 40/1.8, Auto Yashinon 50/2.0, Canon FD 50/3.5
Voigtl�nder APO Lanthar 90/3.5 M42, Topcon RE.Topcor 58/1.8, Helios-44-2 58/2.0, Canon FD 24/2.8,
Canon FD 135/2.5 SC, Auto Topcor 135/3.5, Pentax SMC 55/1.8, Minolta 35/2.8, Minolta MD 35-70/3.5 |
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estudleon
Joined: 15 May 2008
Posts: 3754
Location: Argentina
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| Posted: Thu Apr 29, 2010 6:07 pm Post subject: |
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estudleon wrote:
Nice, nice, very nice !!!
Rino.
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Konica 2,8/100
CZJ: 4/20, 2,4/35, 1,8/50 aus jena, 3,5/135MC, Pentacon 1,8/50
Pentax S-M-C-1,4/50
Helios 44-3
Mamiya 2,8/135
Misc. : jupiter 9
Stuff used:
A) SRL
Alpa 10 D - kern macro Switar 1,9/50 -black, Kilffit apochromat 2/100.
Asahi pentax spotmatic super takumar 1,4/50
Contaflex super B tessar 2,8/50 Pro-tessar 115
Leica R3 electronic summicron 2/50 elmarit 2,8/35
Konica Autoreflex 3 (2 black and chrome one), TC, T4. 2,8/24, 3,5/28 not MC and MC, 1,8/40, 1,4/50, 1,7/50 MC and not MC, 1,8/85, 3,2/135, 3,5/135, 4/200
Minolta XG9 2,8/35, 2/45, 3,5/135
Nikkormat FTn 1,4/50, 2,8/135
Fujica ST 801, 605, 705n. 3,5/19, 1,4/50, 1,8/55, 4/85, 3,5/135.
Praktica MTL 5 and a lot of M42 lenses.
Voigtlander. Bessamatic m, bessamatix de luxe, bessamatic cs, ultramatic and ultramatic cs.
Skoparex 3,5/35, skopagon 2/40, skopar 2,8/50, skopar X 2,8/50, super lanthar (out of catalogue) 2,8/50, dinarex 3,4/90, dinarex 4,8/100, super dinarex 4/135, super dinarex 4/200, zoomar 2,8/36-83, portrait lens 0, 1 and 2. Curtagon 4/28 and 2,8/35
Canon AV1, 1,8/50
Rolleiflex SL35 and SL35 E. 2,8/35 angulon, 2,8/35 distagon, 1,4/55 rolleinar, 1,8/50 planar, 4/135 tessar, 2,8/135 rolleinar, x2 rollei, M42 to rollei adap.
Etc.
RF
Yashica Minister III
Voightlander Vito, vitomatic I, Vito C, etc.
Leica M. M2, M3 (d.s.) and M4. Schenider 3,4/21, 2/35 summaron 2,8/35 (with eyes). Summicron 2/35 (8 elements with eyes), 2/35 chrome, 2/35 black, 1,4/35 pre asph and aspheric - old -, 2/40 summicron, 2,8/50 elmar, 2/50 7 elements, 2/50 DR, 2/50 - minolta version, 1,4/50 summilux 1966 version, 1,4/75 summilux, 2/90 large version, 2/90 reduced version of 1987, 2,8/90 elmarit large version, 4/135 elmar. |
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Rusty
Joined: 06 Nov 2008
Posts: 435
Location: Mosselbay, South Africa
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| Posted: Thu Apr 29, 2010 6:44 pm Post subject: |
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Rusty wrote:
Heh..heh  ..It looks like my cam has grown a pimple ! will clean it up and try some shots at infinity again
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Daniel |
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Nesster
Joined: 24 Apr 2008
Posts: 5883
Location: NJ, USA
Expire: 2014-02-20
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| Posted: Thu Apr 29, 2010 7:29 pm Post subject: |
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Nesster wrote:
Cute as a button and sharp as a tack. I wonder what it is...
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Camera photos
Print Photographica
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Spotmatic
Joined: 18 Aug 2008
Posts: 4045
Location: Netherlands
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| Posted: Fri Apr 30, 2010 6:56 am Post subject: |
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Spotmatic wrote:
Is this possibly a peephole for mounting into a door? Even then I'm gobsmacked by the lack of distortions...!
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Peter - Moderator
Pentax K-5 + Pentax 645 + Canon 5D + Bessa RF 10,5cm Heliar, and a 'little' bag full of MF lenses. The lens list is * here *.
My fast 80s: Asahi-Kogaku Takumar 83mm f/1.9 - Super-Takumar 85mm f/1.9 - FA 77mm f/1.8 Limited - Cyclop 85/1.5 (Helios-40 innards) - Komura 80mm f/1.8 - Meyer Görlitz Primoplan 7,5cm 1:1.9 - Carl Zeiss Jena 80mm f/1.8 Pancolar - Canon 85mm f/1.8 S.S.C. - Canon 85mm f/1.2 S.S.C. Aspherical |
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Rusty
Joined: 06 Nov 2008
Posts: 435
Location: Mosselbay, South Africa
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| Posted: Fri Apr 30, 2010 7:39 am Post subject: |
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Rusty wrote:
| Spotmatic wrote: |
| Is this possibly a peephole for mounting into a door? Even then I'm gobsmacked by the lack of distortions...! |
 That was my first thought , but nothing is in focus peeping into either side of the lens.......
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Daniel |
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dave_t
Joined: 16 Sep 2008
Posts: 214
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| Posted: Fri Apr 30, 2010 8:18 am Post subject: |
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dave_t wrote:
Wow, really surprising sharpness, nice find! |
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mo
Joined: 27 Aug 2009
Posts: 8979
Location: Australia
Expire: 2016-07-30
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| Posted: Fri Apr 30, 2010 9:24 am Post subject: |
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mo wrote:
Wild guess..... is it the eyepiece you drop into a microscope?
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Moira, Moderator 
Fuji XE-1,Pentax K-01,Panasonic G1,Panasonic G5,Pentax MX
Ricoh Singlex TLS,KR-5,KR-5Super,XR-10
Lenses
Auto Rikenon's 55/1.4, 1.8, 2.8... 50/1.7 Takumar 2/58 Preset Takumar 2.8/105 Auto Takumar 2.2/55, 3.5/35 Super Takumar 1.8/55...Macro Takumar F4/50... CZJ Biotar ALU M42 2/58 CZJ Tessar ALU M42 2.8/50
CZJ DDR Flektogon Zebra M42 2.8/35 CZJ Pancolar M42 2/50 CZJ Pancolar Exakta 2/50
Auto Mamiya/Sekor 1.8/55 ...Auto Mamiya/Sekor 2/50 Auto Mamiya/Sekor 2.8/50 Auto Mamiya/Sekor 200/3.5 Tamron SP500/8 Tamron SP350/5.6 Tamron SP90/2.5
Primoplan 1.9/58 Primagon 4.5/35 Telemegor 5.5/150 Angenieux 3.5/28 Angenieux 3,5/135 Y 2
Canon FL 58/1.2,Canon FL85/1.8,Canon FL 100/3.5,Canon SSC 2.8/100 ,Konica AR 100/2.8, Nikkor P 105/2.5
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Rusty
Joined: 06 Nov 2008
Posts: 435
Location: Mosselbay, South Africa
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| Posted: Fri Apr 30, 2010 11:26 am Post subject: |
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Rusty wrote:
I still have no clue , i managed to open and clean the lens
It is a very simple 3 element 3 group air spaced symmetrical design with 2 irises
Here is the lens dismantled
the optical diagram
image at infinity
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Daniel
Last edited by Rusty on Fri Apr 30, 2010 3:52 pm; edited 1 time in total |
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calvin83
Joined: 12 Apr 2009
Posts: 7584
Location: Hong Kong
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| Posted: Fri Apr 30, 2010 2:36 pm Post subject: |
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calvin83 wrote:
What a lovely small triplet lens.
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The best lens is the one you have with you.
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no-X
Joined: 19 Jul 2008
Posts: 2495
Location: Budejky, Czech Republic
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| Posted: Fri Apr 30, 2010 3:07 pm Post subject: |
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no-X wrote:
| Rusty wrote: |
I still have no clue , i managed to open and clean the lens
It is a very simple 3 element 3 group air spaced symmetrical design with 2 irises
Here is the lens dismantled
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Don't you have a larger image? I'm not sure, but the central element looks a bit like cemented doublet 
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(almost) complete list of Helios lenses |
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Rusty
Joined: 06 Nov 2008
Posts: 435
Location: Mosselbay, South Africa
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| Posted: Fri Apr 30, 2010 3:43 pm Post subject: |
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Rusty wrote:
Hi no-x
it looked like that on the pic , so i dismantled again and checked all elements
the middle element has a bevel cut on the one side , but def one solid piece off glass
on closer inspection i see that the outer elements have a perfectly flat inside, not curved as drawn on my pic, will update that
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Daniel |
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