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BobDodds
Joined: 13 Nov 2007
Posts: 87
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yalcinaydin
Joined: 20 May 2008
Posts: 811
Location: Izmir, Turkey
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 Posted: Tue Oct 14, 2008 1:51 pm Post subject: |
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I get it, a really cleans lens, there a few dust in it but no problem I guess. My Pentax adapter will be here 2 weeks later but I guess the mirror will definitely touch the rear metal parts of the lens as there is a few mm longer part than the rest of the mount.
_________________
My name is "Yalcin", and exactly "Yalįın" and here you can find my MF samples:
http://www.flickr.com/photos/yalcinaydin/sets/
Right now switching back to AF because of work needs but I still love the MF lenses  |
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BobDodds
Joined: 13 Nov 2007
Posts: 87
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| Posted: Wed Oct 15, 2008 3:16 am Post subject: |
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I have three of these. Watch http://fotist.com and one will be there soon. I could remove all the parts that stick out, because they don't do anything for us.
Actually two out of three do not have working diaphragms. I hope I don't have to pay $100-$125 for that fix on each.
Other 50/55's come very close to the mirror. These may have to have a lump ground off as well as clipping the aperture pin. That would mean grinding close to the glass. I will try to test it against a pancolar 50, and fix the Porst to focus to infinity on my Sigma SD14. |
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Flor27
Joined: 13 Sep 2007
Posts: 1199
Location: Paris, France
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| Posted: Fri Oct 17, 2008 2:30 pm Post subject: |
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| yalcinaydin wrote: | | I get it, a really cleans lens, there a few dust in it but no problem I guess. My Pentax adapter will be here 2 weeks later but I guess the mirror will definitely touch the rear metal parts of the lens as there is a few mm longer part than the rest of the mount. |
Yes, the rear part of the lens (auto diaph lever) will touch the 5D's mirror. That, for all PK mount lenses 
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Switching from M42 to Minolta MD & Contax/Yashica |
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yalcinaydin
Joined: 20 May 2008
Posts: 811
Location: Izmir, Turkey
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| Posted: Mon Oct 27, 2008 7:59 pm Post subject: |
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| Flor27 wrote: |
Yes, the rear part of the lens (auto diaph lever) will touch the 5D's mirror. That, for all PK mount lenses |
I've just removed the 3 screws and released the back metal part, nothing touches anything at the moment so no hardcore work is needed to work with my 5D but infinity focus is problematic with the mirror as usual 
But I didn't like it's performance at f:1.2. It's "SoftLens" at f:1.2 even in the center and everything is blurry. I haven't used anything wider than f:1.4 so my question is there somthing that I must do or is there a trick. Now I'm really sorry for selling my Super Takumar 50/1.4 but I've givven it to my friend so it won't be a problem taking it back I guess.
Here are the results at 1.2, 2, 2.8, 4, 5.6 at ISO200. 5D is on tripod.
It's soft untill f:2.8, ultra-soft blurry results at f:1.2. Really dissapointment My Rollei Planar 50/1.8 performs clearly better for just 1/4 price...
100% crop @f:1.2:
http://www.flickr.com/photos/yalcinaydin/2978492013/
@f:2 it's much better but still soft on the center.
I'm uploading the original files at the moment I'll give the link when it finishes.
_________________
My name is "Yalcin", and exactly "Yalįın" and here you can find my MF samples:
http://www.flickr.com/photos/yalcinaydin/sets/
Right now switching back to AF because of work needs but I still love the MF lenses |
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yalcinaydin
Joined: 20 May 2008
Posts: 811
Location: Izmir, Turkey
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| Posted: Mon Oct 27, 2008 8:16 pm Post subject: |
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Can this be the cause? I removed the black metal from back of the lens.
_________________
My name is "Yalcin", and exactly "Yalįın" and here you can find my MF samples:
http://www.flickr.com/photos/yalcinaydin/sets/
Right now switching back to AF because of work needs but I still love the MF lenses |
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F16SUNSHINE
Joined: 20 Aug 2007
Posts: 4457
Location: Anacortes Washington
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| Posted: Mon Oct 27, 2008 8:26 pm Post subject: |
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Sorry Brew
It's time to make lemonade
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Dog is my copilot
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no-X
Joined: 19 Jul 2008
Posts: 2002
Location: Budejky, Czech Republic
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| Posted: Mon Oct 27, 2008 8:33 pm Post subject: |
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I believe this glare is mostly caused by sensor reflections. The optical design seems to be good (text is not blurred, but the glare only removed all contrast). This is why many manufacturers highlight importance of special MC layers for digital cameras, esp. for fast lenses. From all M42 lenses I have tried, S-M-C from Asahi resisted sensor reflections best. Thats why i prefer good MC layers to sharpness for fast lenses...
_________________
for sale: Vivitar (Komine) 55/2.8 Macro 1:1 (K/AR) | CZJ Tessar 13,5cm f/4.5 (M42) | Vivitar 35/1.9 (M42) | (Carl Zeiss) aus Jena 1Q Biometar z. 80/2.8 P6
list of Helios 44 lenses | List of CZJ T-marked M42 lenses | I'm not absolutely retarded, English simply isn't my mother tongue :s)
up-to 30mm: Vivitar (Tokina) Series 1 VMC 28/1.9, Vivitar (Komine) MC close-focus 28/2.8, Zeiss Distagon T* 25/2.8 ZS
35mm: Super Takumar 35/2 PRO, S-M-C Takumar 35/2, S-M-C Takumar 35/3.5, CZJ eMC Flektogon 35/2.4, SC Curtagon 35/2.8, Vivitar 35/1.9, MG Primagon V 35/4.5, CZJ Tessar T 40/4.5
50mm: S-M-C Takumar 50/1.4, S-M-C Macro Takumar 50/4, Tomioka Cosinon MC 55/1.4, Tomioka Yashinon 55/1.2, Tomioka Macro Yashinon 60/2.8, CZJ Biotar T 58/2 preset, CZJ Biotar T 58/2 17-blades, CZJ eMC Pancolar 50/1.8, aJ Pancolar 55/1.4, KMZ Helios 44-2 58/2 00xxx, KMZ Helios 44-2 58/2 0xxx, MMZ Helios MC 44-3 58/2, Helios 77M 50/1.8, KMZ Zenitar M2s MC 50/2, KMZ Industar 50/3.5, MC Volna-9 Macro 50/2.8, MC Pentacon 50/1.8, MG Trioplan 50/2.9, MG Primoplan V 58/1.9, Voigtländer Color Ultron 50/1.8, Macro Prakticar 55/2.8
85mm:, CZJ Biotar T 75/1.5 M42, CZJ eMC Pancolar 80/1.8, aJ Biometar 80/2.8 P6 zebra, CZJ Biometar 80/2.8 M42, MG Primoplan V 75/1.9 [exa], MG Night Primoplan 80/1.9 [VP Night], KMZ Helios 40-2 85/1.5 (custom hybrid of 40 and 40-2), S-M-C Takumar 85/1.8, KMZ Jupiter-9 Π 8,5/2 M39, LZOS Jupiter-9 85/2 SLR M39, LZOS Jupiter-9 85/2 M42, Kodak Meniscus 90mm, MG Telefogar V 90/3.5, MG Trioplan V 100/2.8
over 100mm: Ernemann Kinostigmat 11cm, Voigtlander SL Macro APO Lanthar 125/2.5, Spiratone 135/1.8 plura-coat, KOMZ MC Jupiter 37AM 135/3.5, KOMZ Jupiter-11 135/4, KMZ Tair 11A 135/2.8, Pentacon preset 135/2.8 (bokehmonster), CZJ Sonnar MC 135/3.5, CZJ Triotar T 135/4, LR-A Pololyt 135/4.5 "T2", ZOMZ TAIR-3 300/4.5 |
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yalcinaydin
Joined: 20 May 2008
Posts: 811
Location: Izmir, Turkey
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| Posted: Mon Oct 27, 2008 8:42 pm Post subject: |
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Whole set:
http://www.flickr.com/photos/yalcinaydin/sets/72157608422358642/
@F16SUNSHINE
I'm really sad to hear that, does this mean that I've a bad copy or a common problem? I need to know this cause I will give a sale ad tomorrow.
@no-X
This is also MC: PORST COLOR REFLEX MC AUTO 1.1.2/55mm Nr.002368
_________________
My name is "Yalcin", and exactly "Yalįın" and here you can find my MF samples:
http://www.flickr.com/photos/yalcinaydin/sets/
Right now switching back to AF because of work needs but I still love the MF lenses |
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no-X
Joined: 19 Jul 2008
Posts: 2002
Location: Budejky, Czech Republic
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| Posted: Mon Oct 27, 2008 8:48 pm Post subject: |
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Yes, but there are big differences in MC quality between various manufacturers. I already posted this:
f/1.8 - MC Pancolar / SMC Takumar:
 
Pancolar is sharper, but its MC is not effective agains sensor reflections, which caused glare and lack of contrast around the text and edges. Takumar is not as sharp, but SMC works and suppresses most of them.
_________________
for sale: Vivitar (Komine) 55/2.8 Macro 1:1 (K/AR) | CZJ Tessar 13,5cm f/4.5 (M42) | Vivitar 35/1.9 (M42) | (Carl Zeiss) aus Jena 1Q Biometar z. 80/2.8 P6
list of Helios 44 lenses | List of CZJ T-marked M42 lenses | I'm not absolutely retarded, English simply isn't my mother tongue :s)
up-to 30mm: Vivitar (Tokina) Series 1 VMC 28/1.9, Vivitar (Komine) MC close-focus 28/2.8, Zeiss Distagon T* 25/2.8 ZS
35mm: Super Takumar 35/2 PRO, S-M-C Takumar 35/2, S-M-C Takumar 35/3.5, CZJ eMC Flektogon 35/2.4, SC Curtagon 35/2.8, Vivitar 35/1.9, MG Primagon V 35/4.5, CZJ Tessar T 40/4.5
50mm: S-M-C Takumar 50/1.4, S-M-C Macro Takumar 50/4, Tomioka Cosinon MC 55/1.4, Tomioka Yashinon 55/1.2, Tomioka Macro Yashinon 60/2.8, CZJ Biotar T 58/2 preset, CZJ Biotar T 58/2 17-blades, CZJ eMC Pancolar 50/1.8, aJ Pancolar 55/1.4, KMZ Helios 44-2 58/2 00xxx, KMZ Helios 44-2 58/2 0xxx, MMZ Helios MC 44-3 58/2, Helios 77M 50/1.8, KMZ Zenitar M2s MC 50/2, KMZ Industar 50/3.5, MC Volna-9 Macro 50/2.8, MC Pentacon 50/1.8, MG Trioplan 50/2.9, MG Primoplan V 58/1.9, Voigtländer Color Ultron 50/1.8, Macro Prakticar 55/2.8
85mm:, CZJ Biotar T 75/1.5 M42, CZJ eMC Pancolar 80/1.8, aJ Biometar 80/2.8 P6 zebra, CZJ Biometar 80/2.8 M42, MG Primoplan V 75/1.9 [exa], MG Night Primoplan 80/1.9 [VP Night], KMZ Helios 40-2 85/1.5 (custom hybrid of 40 and 40-2), S-M-C Takumar 85/1.8, KMZ Jupiter-9 Π 8,5/2 M39, LZOS Jupiter-9 85/2 SLR M39, LZOS Jupiter-9 85/2 M42, Kodak Meniscus 90mm, MG Telefogar V 90/3.5, MG Trioplan V 100/2.8
over 100mm: Ernemann Kinostigmat 11cm, Voigtlander SL Macro APO Lanthar 125/2.5, Spiratone 135/1.8 plura-coat, KOMZ MC Jupiter 37AM 135/3.5, KOMZ Jupiter-11 135/4, KMZ Tair 11A 135/2.8, Pentacon preset 135/2.8 (bokehmonster), CZJ Sonnar MC 135/3.5, CZJ Triotar T 135/4, LR-A Pololyt 135/4.5 "T2", ZOMZ TAIR-3 300/4.5 |
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yalcinaydin
Joined: 20 May 2008
Posts: 811
Location: Izmir, Turkey
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| Posted: Mon Oct 27, 2008 8:58 pm Post subject: |
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Takumar is clearly better.
_________________
My name is "Yalcin", and exactly "Yalįın" and here you can find my MF samples:
http://www.flickr.com/photos/yalcinaydin/sets/
Right now switching back to AF because of work needs but I still love the MF lenses |
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yalcinaydin
Joined: 20 May 2008
Posts: 811
Location: Izmir, Turkey
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| Posted: Mon Oct 27, 2008 9:08 pm Post subject: |
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Here is the sample that is enough to curse the lens:
1-Porst 1.2/55@1.2, center 100% crop
2-Porst 1.2/55@1.8 (roughly), center 100% crop
3-Porst 1.2/55@2, center 100% crop
4-Canon Ef 1.8/50 II@1.8, center 100% crop
the suspicious thing is I see from the image much more cleaner on the optical visor but there is something else messing around. I'll try it with K100D super before judging the seller. If it's faulty then I'll give it back to the seller and request my money back.
_________________
My name is "Yalcin", and exactly "Yalįın" and here you can find my MF samples:
http://www.flickr.com/photos/yalcinaydin/sets/
Right now switching back to AF because of work needs but I still love the MF lenses |
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F16SUNSHINE
Joined: 20 Aug 2007
Posts: 4457
Location: Anacortes Washington
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| Posted: Mon Oct 27, 2008 9:11 pm Post subject: |
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It could be copy variation or it could be the simple personality of the lens or even a potential problem.
If it does become sharp eventually. Likely it is not a mis-aligned element.
The internal reflection problem is not usually so pronounced in low light.
Anytime you have a big flat rear element you can get reflections from it.
When I use the 1.4/55 Tomioka or 1.2/55 Tomioka this can come up.
It rarely is so troublesome as your samples.
I think this is simply the personality of the lens.
Fast f.1.2 lenses can be like this. The shots remind me of the Canon 50mm .95 that I had a few years ago.
It gathered lots of light but was glowing until f2.
My honest advise is. Try using the lens on a real subject in the way it is intended.
Go out tonight and shoot at some subject in minimal light and with varying distances.
Don't be too disappointed Yalcin. It will be easy to sell if you don't love it. 
People love fast lenses.
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Dog is my copilot
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no-X
Joined: 19 Jul 2008
Posts: 2002
Location: Budejky, Czech Republic
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| Posted: Mon Oct 27, 2008 9:19 pm Post subject: |
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| yalcinaydin wrote: | | the suspicious thing is I see from the image much more cleaner on the optical visor but there is something else messing around. |
Believe me. It's caused by sensor reflctions. When you look through viewfinder, you won't see them, because they arise not until the mirror is tilted and the light lightens the sensor. Thats why you cannot see it through the viewfinder - it's another optical way, where these reflections doesn't exist. Try the lens on film - it will be much better.
_________________
for sale: Vivitar (Komine) 55/2.8 Macro 1:1 (K/AR) | CZJ Tessar 13,5cm f/4.5 (M42) | Vivitar 35/1.9 (M42) | (Carl Zeiss) aus Jena 1Q Biometar z. 80/2.8 P6
list of Helios 44 lenses | List of CZJ T-marked M42 lenses | I'm not absolutely retarded, English simply isn't my mother tongue :s)
up-to 30mm: Vivitar (Tokina) Series 1 VMC 28/1.9, Vivitar (Komine) MC close-focus 28/2.8, Zeiss Distagon T* 25/2.8 ZS
35mm: Super Takumar 35/2 PRO, S-M-C Takumar 35/2, S-M-C Takumar 35/3.5, CZJ eMC Flektogon 35/2.4, SC Curtagon 35/2.8, Vivitar 35/1.9, MG Primagon V 35/4.5, CZJ Tessar T 40/4.5
50mm: S-M-C Takumar 50/1.4, S-M-C Macro Takumar 50/4, Tomioka Cosinon MC 55/1.4, Tomioka Yashinon 55/1.2, Tomioka Macro Yashinon 60/2.8, CZJ Biotar T 58/2 preset, CZJ Biotar T 58/2 17-blades, CZJ eMC Pancolar 50/1.8, aJ Pancolar 55/1.4, KMZ Helios 44-2 58/2 00xxx, KMZ Helios 44-2 58/2 0xxx, MMZ Helios MC 44-3 58/2, Helios 77M 50/1.8, KMZ Zenitar M2s MC 50/2, KMZ Industar 50/3.5, MC Volna-9 Macro 50/2.8, MC Pentacon 50/1.8, MG Trioplan 50/2.9, MG Primoplan V 58/1.9, Voigtländer Color Ultron 50/1.8, Macro Prakticar 55/2.8
85mm:, CZJ Biotar T 75/1.5 M42, CZJ eMC Pancolar 80/1.8, aJ Biometar 80/2.8 P6 zebra, CZJ Biometar 80/2.8 M42, MG Primoplan V 75/1.9 [exa], MG Night Primoplan 80/1.9 [VP Night], KMZ Helios 40-2 85/1.5 (custom hybrid of 40 and 40-2), S-M-C Takumar 85/1.8, KMZ Jupiter-9 Π 8,5/2 M39, LZOS Jupiter-9 85/2 SLR M39, LZOS Jupiter-9 85/2 M42, Kodak Meniscus 90mm, MG Telefogar V 90/3.5, MG Trioplan V 100/2.8
over 100mm: Ernemann Kinostigmat 11cm, Voigtlander SL Macro APO Lanthar 125/2.5, Spiratone 135/1.8 plura-coat, KOMZ MC Jupiter 37AM 135/3.5, KOMZ Jupiter-11 135/4, KMZ Tair 11A 135/2.8, Pentacon preset 135/2.8 (bokehmonster), CZJ Sonnar MC 135/3.5, CZJ Triotar T 135/4, LR-A Pololyt 135/4.5 "T2", ZOMZ TAIR-3 300/4.5 |
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Attila
Joined: 24 Feb 2007
Posts: 27555
Location: Budapest,Hungary
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| Posted: Mon Oct 27, 2008 9:29 pm Post subject: |
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My copy was excellent.
http://www.mflenses.com/gallery/v/japenese/othermaker/ports_55mm_f1_2/
_________________
Folder cameras: Konishiroku Pearl, Bessa RF Heliar,Bessa I Color-Skopar,Ercona II Tessar,Franka III Schneider-Kreuznach Radionar
[color=black][b]35mm rangefinderKonica III,Bessa L,Yashica Electro GN,Canonette QL 17
35mm SLRKonica FM,Konica FP,Konica FT-1,Konica FC-1,Konica TC4,Nikon FA,Exakta VarexIIa,Fujica ST801
Carl Zeiss Jena:Flektogon 2.8/20mm,4/25mm,2.4/35,2.8/65mm,4.5/4cm Tessar, 8/500mm Fernobjektiv
Pancolar 1.4/55mm,1.8/50mm,1.8/80mm,Tessar 2.8/50mm,Biotar 2/58mm,1.5/75mm,1.5/7,5cm
Carl Zeiss: Sonnar 2.8/135,2.8/180mm,Tessar 4/135mm
Nikon:2.8/20mm, 2.8/28mm,1.4/35mm,1.4/50mm,2/50mm,1.8/85mm,2/85mm,2.8/135mm
Pentax: Pentax 1.2/50mm,1.8/85mm,4/200mm
Helios: Helios-40 1.5/8,5cm,Helios-44-1 2/58mm,Helios-44-2 2/58mm
Olympus OM: 3.5/18mm,3.5/21mm,3.5/55mm macro,2/90mm macro,35-70mm
Meyer: 4.5/35mm Primagon,Primoplan 1.9/58mm,1.9/75mm,2.8/100mm,Orestegor 2.8/135mm,4.5/40 Helioplan
Leica: 4/100 Macro
Konica:21mm f4, 28mm f3.5,35mm f2.8,50mm f1.4,57mm f1.2,85mm f1.8,100mm f2.8,135mm f3.5,135mm f3.2,200mm f3.5,4/300mm,40cm f4.5
Please visit my Ebay shop
and my company site
http://www.hqdesign.eu/
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