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flashinm
Joined: 03 Apr 2011
Posts: 15
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 Posted: Sun Apr 03, 2011 5:20 pm Post subject: Interchangability of Takumar 50mm parts? |
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flashinm wrote:
Does anyone know if the front lens group is the same with all the M42 mount 50mm Takumars? The reason I ask is I have an S-M-C version with fungus in the rear element that I can't get to (screws to get the rear mount off just wont budge). I got the front elements taken apart and completely cleaned.
Today I bought one of the 8 element original Super taks and that has me wondering if I should swap out the front element for the multicoated version and make a Super-Awesome Takumar
Anyone know if there's any problem with this? Would there be any advantage other than flare resistance? |
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CarbonR
Joined: 31 Dec 2008
Posts: 1969
Location: Clermont-Ferrand, France
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| Posted: Sun Apr 03, 2011 5:54 pm Post subject: |
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CarbonR wrote:
Hello, maybe ?
The two have different formulae, so that would be like putting a diesel engine instead of a gas one, without changing everything around. The only solution would be taht the front groups are strictly identical. They seem to have the same shape, you can try but I don't guarantee anything...
_________________
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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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Sun Apr 03, 2011 7:41 pm Post subject: Re: Interchangability of Takumar 50mm parts? |
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martyn_bannister wrote:
| flashinm wrote: |
| Does anyone know if the front lens group is the same with all the M42 mount 50mm Takumars? The reason I ask is I have an S-M-C version with fungus in the rear element that I can't get to (screws to get the rear mount off just wont budge). |
If you have already tried very thin oil and heat, I suggest you just drill the heads out. If you have a donor lens for more major surgery then you have some spare screws also  |
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estudleon
Joined: 15 May 2008
Posts: 3754
Location: Argentina
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| Posted: Sun Apr 03, 2011 8:41 pm Post subject: |
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estudleon wrote:
The 8 elements, the S.T 7 elements and the S-M-C/SMC are different lenses.
Rino
_________________
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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William
Joined: 26 Nov 2009
Posts: 489
Location: London
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| Posted: Sun Apr 03, 2011 9:23 pm Post subject: |
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William wrote:
If it's non destructive then I can't see any harm in trying. Maybe you'll get some interesting results or maybe it'll look awful. |
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flashinm
Joined: 03 Apr 2011
Posts: 15
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| Posted: Mon Apr 04, 2011 2:43 am Post subject: |
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flashinm wrote:
Well based on my initial testings I'm not sure if it will work. They are clearly different actual focal lengths. The 8 element is slightly wider. A couple other notes:
- 8 element is a more neutral color tone. The S-M-C is warmer which I like in some cases and not in others.
- 8 element looks a little sharper at f1.4
- Bokeh seems about the same. 8 element may be slightly more pleasing.
- 8 element hits the mirror at infinity on my 5DII, S-M-C does not. Sadly, I put a small scratch on the rear element.
- 8 element is brighter
Here's just some random comparison pics with crops. Resizing only, no adjustments or sharpening.
At infinity f8:
Center crops:
At f1.4:
Center crops:
CA test:
At f1.4:
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estudleon
Joined: 15 May 2008
Posts: 3754
Location: Argentina
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| Posted: Mon Apr 04, 2011 12:54 pm Post subject: |
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estudleon wrote:
| flashinm wrote: |
Well based on my initial testings I'm not sure if it will work. They are clearly different actual focal lengths. The 8 element is slightly wider. A couple other notes:
- 8 element is a more neutral color tone. The S-M-C is warmer which I like in some cases and not in others.
- 8 element looks a little sharper at f1.4
- Bokeh seems about the same. 8 element may be slightly more pleasing.
- 8 element hits the mirror at infinity on my 5DII, S-M-C does not. Sadly, I put a small scratch on the rear element.
- 8 element is brighter
Here's just some random comparison pics with crops. Resizing only, no adjustments or sharpening.
At infinity f8:
Center crops:
At f1.4:
Center crops:
CA test:
At f1.4:
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My 8 elements S.T. had very low contrast and was very prone to flare. At F/1,4 was so-so performer. And from F/2 the SMC 1,4 is a better lens in all the items (resolution power, contrast).
At 1,4 the 8 elements, had strong flare, that degraded the IQ.
With film, the 8 elements isn't so warm, and it can be good. With digital it isn't important.
Of course, that is only my experience and taste.
Rino.
_________________
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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