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yalcinaydin
Joined: 20 May 2008 Posts: 825 Location: Izmir, Turkey
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Posted: Sat Oct 11, 2008 10:15 am Post subject: Porst Color Reflex 55/1.2 [135USD] |
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yalcinaydin wrote:
I find one in one of local sites, should I buy this.
I sounds really cheap for a f:1.2 lens but I don't know much about Porst brand and especially this lens.
By the way its Pentax K bayonet, I should buy an adapter for my 5D but not an expensive thing so no problem.
I've bought for 135USD. _________________ My name is "Yalcin", and exactly "Yalçın" 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
Last edited by yalcinaydin on Wed Apr 08, 2009 9:33 pm; edited 2 times in total |
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yalcinaydin
Joined: 20 May 2008 Posts: 825 Location: Izmir, Turkey
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Posted: Sat Oct 11, 2008 10:37 am Post subject: |
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yalcinaydin wrote:
Our forum's search functions gives error to me but I've remembered to use google and find also topic from here:
http://forum.mflenses.com/today-i-got-a-porst-55mm-f1-2-mc-pentax-k-lens-t4102.html
From these samples I guess I can buy it
With f:1.2 and ISO3200 it can give nice results in concerts
http://www.flickr.com/photos/sunsetlight/tags/5512/
and I've read this one also from http://forum.manualfocus.org/viewtopic.php?id=9417:
Quote: |
The other one was the Porst 1.2/55 (6 lenses, 6 elements) with Pentax-K bayonet. It was made by Cosina in the late 70's, early 80's to be sold with their Pentax-K bayonet bodies (e.g. Cosina CT-4 - relabeled as Porst compact reflex AM; see http://www.kamera-geschichte.de/files/p … lex_am.htm). Well built and quite good at f/2, but with lots of flaws like coma, spherical abberations, CA wide open.
It has nothing to do with Tomioka or their Tomioka 1.2/55 M42 lens (7 lenses, 6 elements) from the early 70's. |
_________________ My name is "Yalcin", and exactly "Yalçın" 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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koji
Joined: 21 Jul 2008 Posts: 2106 Location: Hiroshima, Japan
Expire: 2012-12-27
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Posted: Sat Oct 11, 2008 11:25 am Post subject: |
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koji wrote:
I've got the exactly same lens in Tokyo, actually my friend rented it to me
permanently(!). After coming back to Toronto, I will put up the photo in here.
This lens is definitely made by Cosina according to my Porst specialist.
Anyhow any lens is far better than my ability of making images.
@Yokohama (port city south of Tokyo) _________________ Our Home Page has 18,200 photos in 575 directories today.
Lenses: https://www.pbase.com/kkawakami/top_level_my_lenses |
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LucisPictor
Joined: 26 Feb 2007 Posts: 17633 Location: Oberhessen, Germany / Maidstone ('95-'96)
Expire: 2013-12-03
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Posted: Sat Oct 11, 2008 1:15 pm Post subject: |
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LucisPictor wrote:
It is quite cheap for an f1.2 lens. I don't know this particular model and sometimes PK-lenses can have a problem with the 5D mirror.
Can you "try before buy"? _________________ Personal forum activity on pause every now and again (due to job obligations)!
Carsten, former Moderator
Things ON SALE
Carsten = "KAPCTEH" = "Karusutenu" | T-shirt?.........................My photos from Emilia: http://www.schouler.net/emilia/emilia2011.html
My gear: http://retrocameracs.wordpress.com/ausrustung/
Old list: http://forum.mflenses.com/viewtopic.php?t=65 (Not up-to-date, sorry!) | http://www.lucispictor.de | http://www.alensaweek.wordpress.com |
http://www.retrocamera.de |
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Attila
Joined: 24 Feb 2007 Posts: 57840 Location: Hungary
Expire: 2021-11-18
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Posted: Sat Oct 11, 2008 1:49 pm Post subject: |
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Attila wrote:
http://www.mflenses.com/gallery/v/japenese/othermaker/ports_55mm_f1_2/
Pretty good lens. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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montecarlo
Joined: 04 Apr 2007 Posts: 1865 Location: Romania
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Posted: Sat Oct 11, 2008 2:09 pm Post subject: Re: Porst Color Reflex 55 mm f:1.2 = 135USD? |
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montecarlo wrote:
yalcinaydin wrote: |
I find one in one of local sites, should I buy this.
I sounds really cheap for a f:1.2 lens but I don't know much about Porst brand and especially this lens.
By the way its Pentax K bayonet, I should buy an adapter for my 5D but not an expensive thing so no problem. |
I think Abbazz also has some good shots made with this lens http://forum.mflenses.com/bali-pictures-part-i-porst-tomioka-55-1-2-t3285.html _________________ Canonet QL17 III
Zenit E , Helios-44 58mm f:2.0 , Tair-11A 135mm f:2.8, Jupiter-9 85mm f:2.0,
Carl Zeiss Jena Flektogon 35mm f:2.4
Pentax MX, ME Super, Chinon CE4/CM4, Petri MC 28mm f:2, smc Pentax-M 50mm f:1.7, Soligor T 135mm f:2.8
Minolta X500, Tokina 28/2.8, Rokkor 50/1.7, 80-205/4.5
Nikon D90, Nikkor 35/2.0, Nikkor 50/1.8, Sigma 24/2.8, Nikkor 18-105 VR |
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F16SUNSHINE
Joined: 20 Aug 2007 Posts: 5486 Location: Left Coast
Expire: 2011-11-18
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Posted: Sat Oct 11, 2008 3:26 pm Post subject: |
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F16SUNSHINE wrote:
You will need to modify for use with 5D.
Or modify the 5D. _________________ Moderator |
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yalcinaydin
Joined: 20 May 2008 Posts: 825 Location: Izmir, Turkey
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Posted: Sat Oct 11, 2008 7:27 pm Post subject: |
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yalcinaydin wrote:
F16SUNSHINE wrote: |
You will need to modify for use with 5D.
Or modify the 5D. |
I guess I don't have much movement area left and this mirror should be shaved
@Carsten:
No, as it is located 750km away from me _________________ My name is "Yalcin", and exactly "Yalçın" 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: 825 Location: Izmir, Turkey
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Posted: Sat Oct 11, 2008 8:31 pm Post subject: |
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yalcinaydin wrote:
And I have bought it
I can finance it by selling my 2nd Rollei Planar 50/1.8 and Super Takumar 50/1.4. I guess if I really like the results I'll use 55/1.2 for speed and Planar 50/1.8 for creamy bokeh so Super Takumar is just in the middle of the two. _________________ My name is "Yalcin", and exactly "Yalçın" 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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Attila
Joined: 24 Feb 2007 Posts: 57840 Location: Hungary
Expire: 2021-11-18
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Posted: Sat Oct 11, 2008 8:35 pm Post subject: |
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Attila wrote:
Congratst! It was a great deal! _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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Throndor
Joined: 15 Sep 2008 Posts: 157 Location: Ankara / TURKEY
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Posted: Sat Oct 11, 2008 8:44 pm Post subject: |
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Throndor wrote:
God, how did i miss that one..and its a K-mount.... ..
Hayırlı Olsun _________________ Omer
Pentax K100D super
Pentax DA 18-55 AL
Pentax SMC-FA 50 f/1.4
Aus Jena Pancolar 50/1.8 (Zebra)
Carl Zeiss Jena Sonnar 135/3.5
Varexon 35/2.8
Helios 44-2 58/2
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yalcinaydin
Joined: 20 May 2008 Posts: 825 Location: Izmir, Turkey
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Posted: Sat Oct 11, 2008 8:44 pm Post subject: |
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yalcinaydin wrote:
Attila wrote: |
Congratst! It was a great deal! |
Thanks Atilla, now I'll wait for the Pentax K adapters arrival which will probably be 2-3 weeks.
Throndor wrote: |
God, how did i miss that one..and its a K-mount.... ..
Hayırlı Olsun |
Sagol (Thanks in Turkish), I've seen it in fotokritik forum and couldn't resist but I'll probably sell 2 of my 5 normal lenses as I want the lenses not to collect but to use. _________________ My name is "Yalcin", and exactly "Yalçın" 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
Last edited by yalcinaydin on Sat Oct 11, 2008 8:47 pm; edited 1 time in total |
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Attila
Joined: 24 Feb 2007 Posts: 57840 Location: Hungary
Expire: 2021-11-18
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Posted: Sat Oct 11, 2008 8:45 pm Post subject: |
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Attila wrote:
Hard time _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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BobDodds
Joined: 13 Nov 2007 Posts: 87
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Posted: Sun Oct 12, 2008 4:52 am Post subject: |
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BobDodds wrote:
I have three but they don't fit Sigma without work. |
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BobDodds
Joined: 13 Nov 2007 Posts: 87
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Posted: Sun Oct 12, 2008 5:08 am Post subject: |
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BobDodds wrote:
Cosina Noxon 55mm f1.2
Start the legend. |
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BobDodds
Joined: 13 Nov 2007 Posts: 87
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Posted: Sun Oct 12, 2008 5:16 am Post subject: |
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BobDodds wrote:
http://search.pbase.com/search?q=porst+55mm+f1.2
not much Noktonish to see there or flickr |
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yalcinaydin
Joined: 20 May 2008 Posts: 825 Location: Izmir, Turkey
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Posted: Tue Oct 14, 2008 1:51 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. _________________ My name is "Yalcin", and exactly "Yalçın" 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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BobDodds wrote:
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: 1195 Location: Paris, France
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Posted: Fri Oct 17, 2008 2:30 pm Post subject: |
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Flor27 wrote:
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 _________________ Switching from M42 to Minolta MD & Contax/Yashica |
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yalcinaydin
Joined: 20 May 2008 Posts: 825 Location: Izmir, Turkey
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Posted: Mon Oct 27, 2008 7:59 pm Post subject: |
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yalcinaydin wrote:
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 "Yalçın" 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: 825 Location: Izmir, Turkey
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Posted: Mon Oct 27, 2008 8:16 pm Post subject: |
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yalcinaydin wrote:
Can this be the cause? I removed the black metal from back of the lens.
_________________ My name is "Yalcin", and exactly "Yalçın" 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: 5486 Location: Left Coast
Expire: 2011-11-18
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Posted: Mon Oct 27, 2008 8:26 pm Post subject: |
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F16SUNSHINE wrote:
Sorry Brew
It's time to make lemonade _________________ Moderator |
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no-X
Joined: 19 Jul 2008 Posts: 2495 Location: Budejky, Czech Republic
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Posted: Mon Oct 27, 2008 8:33 pm Post subject: |
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no-X wrote:
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... _________________ (almost) complete list of Helios lenses |
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yalcinaydin
Joined: 20 May 2008 Posts: 825 Location: Izmir, Turkey
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Posted: Mon Oct 27, 2008 8:42 pm Post subject: |
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yalcinaydin wrote:
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 "Yalçın" 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: 2495 Location: Budejky, Czech Republic
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Posted: Mon Oct 27, 2008 8:48 pm Post subject: |
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no-X wrote:
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. _________________ (almost) complete list of Helios lenses |
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