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pwsonline
Joined: 30 Nov 2008 Posts: 36 Location: Netherlands
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Posted: Wed Apr 15, 2009 9:45 am Post subject: Need advice on distorted image Takumar SMC 28mm 3,5 |
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pwsonline wrote:
Hi all,
I purchased a lens, which supposed to be in 100% OK shape.
On the outside it was indeed, but the images are really terrible!
No returning possibility ( )...., so:
The glass seems absolutely clear and clean to me, also tried it on different camera's incl. a spotmatic, all the same...
When stopped down, it gets a bit better, but stays terrible.
I think there might be a lens inside mounted incorrectly?
Any other ideas?
Maybe someone has a glass-layout?
For any help on this I will be most grateful!
_________________ Nikon system user. (D700, F80, EM + various AF hardware. Nice but not in this group...)
Pentax K5 and ME-Super + various AF and MF lenses (I love the built in SR!!)
Long tele:
MF lenses:
MTO-11CA 1000mm mirrorlens
Pentacon 500mm F5,6
Meyer Orestegor 300mm F4
Tele Ennalyt (Revue) 400mm F4,5
AI-S Nikkor 400mm f5,6 IF-ED
Jupiter 37A 135mm F3,5 (olympic version)
Industar 50-2 50mm pancake lens, black
Nikkor AI-S 24mm F2,8
Super Takumar 150mm F4 -- 35mm F3,5 -- 200mm F4
SMC Takumar 50mm F1,8 -- 105mm F2,8 -- 135mm F3,5 -- 135mm F2,5 -- 28mm F3,5
SMC Takumar 100mm F4 Macro
Super Tak 50mm Macro F4
SMC Pentax 40mm F2,8
RMC Tokina 24mm F2,8 -- 28mm F2,8 -- 17mm F3,5
Manual extension tubes. |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Wed Apr 15, 2009 9:59 am Post subject: |
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Attila wrote:
Give to seller a negative feedback if he won't make refund , he sold a garbage to you. Don't care much about description, no return .... this is nasty and put him into buyer source on this forum. In title with seller id + Ebay , google will pickup within a few days and send to him this link.
Perhaps works and you get back your money , perhaps don't. _________________ -------------------------------
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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no-X
Joined: 19 Jul 2008 Posts: 2495 Location: Budejky, Czech Republic
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Posted: Wed Apr 15, 2009 10:22 am Post subject: |
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no-X wrote:
Loosy or twisted optical element.
But the effect is quite good, you would pay much more for a lens, which would be designed to create this Did you try it for portrait? _________________ (almost) complete list of Helios lenses |
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peterqd
Joined: 28 Feb 2007 Posts: 7448 Location: near High Wycombe, UK
Expire: 2014-01-04
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Posted: Wed Apr 15, 2009 10:41 am Post subject: |
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peterqd wrote:
I agree with no-X, and it could also be an element put back the wrong way round. Here's a small diagram, credit to www.whitemetal.com. Each group of elements is mounted in a separate section in front and behind the diaphragm, and both sections screw into the main body. I'd start by removing the engraved decal ring round the front element and checking the front group are tight and whether the second element is correct. The rear section is a little more complicated to get at due to the aperture dial. Good luck!
_________________ Peter - Moderator |
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pwsonline
Joined: 30 Nov 2008 Posts: 36 Location: Netherlands
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Posted: Wed Apr 15, 2009 10:51 am Post subject: bad SMC Takumar lens? |
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pwsonline wrote:
Thanks guys! You are GREAT!!!! For helping me out here! Alway reliable!
Attilla: The purchase was in Holland, and not on Ebay, with it's credit-system. I just have mailed him with my complaint, and I am waiting his reply. If he rejects my claim, I will mail his name here!
No-X: Thanks for the comment, you made me smile (really needed this now)
Peterqd: Thanks for your opinion and diagram. I will start working on it right away! (cause I'd really wat to have it good)!
Kind regards to all! _________________ Nikon system user. (D700, F80, EM + various AF hardware. Nice but not in this group...)
Pentax K5 and ME-Super + various AF and MF lenses (I love the built in SR!!)
Long tele:
MF lenses:
MTO-11CA 1000mm mirrorlens
Pentacon 500mm F5,6
Meyer Orestegor 300mm F4
Tele Ennalyt (Revue) 400mm F4,5
AI-S Nikkor 400mm f5,6 IF-ED
Jupiter 37A 135mm F3,5 (olympic version)
Industar 50-2 50mm pancake lens, black
Nikkor AI-S 24mm F2,8
Super Takumar 150mm F4 -- 35mm F3,5 -- 200mm F4
SMC Takumar 50mm F1,8 -- 105mm F2,8 -- 135mm F3,5 -- 135mm F2,5 -- 28mm F3,5
SMC Takumar 100mm F4 Macro
Super Tak 50mm Macro F4
SMC Pentax 40mm F2,8
RMC Tokina 24mm F2,8 -- 28mm F2,8 -- 17mm F3,5
Manual extension tubes. |
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zewrak
Joined: 12 Apr 2008 Posts: 1212
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Posted: Wed Apr 15, 2009 11:15 am Post subject: |
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zewrak wrote:
Leave it as it is. I find it really artistic. get a model into it and let us see a portrait. If not, remember whats wrong and make a diagram how to achieve it, since the 28mm i got isnt very good. :p _________________ My homepage, all manual shots |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Wed Apr 15, 2009 11:34 am Post subject: |
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Attila wrote:
zewrak wrote: |
Leave it as it is. I find it really artistic. get a model into it and let us see a portrait. If not, remember whats wrong and make a diagram how to achieve it, since the 28mm i got isnt very good. :p |
I think this as an excellent idea , try for portraits and if found it works for you ask seller for half refund. _________________ -------------------------------
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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greg
Joined: 21 Mar 2009 Posts: 683
Expire: 2012-12-03
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Posted: Wed Apr 15, 2009 12:11 pm Post subject: |
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greg wrote:
Sell it on eBay
"Prototype lens with built in Photoshop filter" |
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naplam
Joined: 22 Mar 2007 Posts: 469 Location: Spain
Expire: 2013-11-30
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Posted: Wed Apr 15, 2009 1:15 pm Post subject: |
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naplam wrote:
greg wrote: |
Sell it on eBay
"Prototype lens with built in Photoshop filter" |
Yeah, throw in some marketing buzzwords and you're all set.
Now seriously, "no returns" doesn't normally mean no returns whatsoever. If the seller lies about the condition of the item, it should be refundable. If the seller is unsure of the working condition of the item or the description is not complete, then "no returns" CAN mean no returns even if it's not working, but if he says it works, it has to work! Imagine he sends a brick instead of a lens and then says "aah, no returns dude" |
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thePiRaTE!!
Joined: 31 Oct 2008 Posts: 416 Location: Canada
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Posted: Wed Apr 15, 2009 1:25 pm Post subject: |
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thePiRaTE!! wrote:
peterqd wrote: |
I agree with no-X, and it could also be an element put back the wrong way round. Here's a small diagram, credit to www.whitemetal.com. Each group of elements is mounted in a separate section in front and behind the diaphragm, and both sections screw into the main body. I'd start by removing the engraved decal ring round the front element and checking the front group are tight and whether the second element is correct. The rear section is a little more complicated to get at due to the aperture dial. Good luck!
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I think this is very good advice. I recall seeing photos from a fellow who intentionally put the rear element (or was it the front?) in backwards to get a similar result with a Helios 40-2. _________________ kellysereda.com
Sony A7ii, A900, NEX-5
_______________________
Helios: 1.5/85 40-2.
Meyer-Optik: Trioplan 2.8/100, Oreston 1.8/50.
Minolta: Rokkor-PG 1.2/58.
Porst: 1.2/55 Color Reflex.
Sony: 4-5.6/70-400 G.
Takumar: Super Takumar 3.5/135, Super Takumar 1.4/50, SMC Takumar 3.5/28.
Topcon: Topcor 1.4/58.
Voigtländer: Nokton Classic SC 1.4/35.
Zeiss: Planar T*1.2/85 "60 jahre" C/Y, Vario-Sonnar T*3.4/35-70 C/Y, Vario-Sonnar T*2.8/16-35 ZA, Distagon T*2/24 ZA.
lenses for sale here |
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Spotmatic
Joined: 18 Aug 2008 Posts: 4045 Location: Netherlands
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Posted: Wed Apr 15, 2009 1:33 pm Post subject: |
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Spotmatic wrote:
Pwsonline, if you don't want to fiddle around with the lens (and manage to send it back to the seller) then I have a 100% good example for you. I'm also in Holland, so... _________________ 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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pwsonline
Joined: 30 Nov 2008 Posts: 36 Location: Netherlands
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Posted: Wed Apr 15, 2009 6:34 pm Post subject: Takumar 28mm advice |
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pwsonline wrote:
Thanks for all comments. I used the diagram and managed to start at the rear, because I noticed some minimal scratches on the rings there.
It turned out, that the 2 most rear elements where mounted the "wrong way round"
After the correction, I made new test shots, they looked like this:
It looks like I corrected it (or wrecked the amazing effect, depending on the reader), but I am more happy now. The seller Did in fact offer a refund, so I will not remain upset with him. So thanks to y' all, it came to a good end! Thanks again! _________________ Nikon system user. (D700, F80, EM + various AF hardware. Nice but not in this group...)
Pentax K5 and ME-Super + various AF and MF lenses (I love the built in SR!!)
Long tele:
MF lenses:
MTO-11CA 1000mm mirrorlens
Pentacon 500mm F5,6
Meyer Orestegor 300mm F4
Tele Ennalyt (Revue) 400mm F4,5
AI-S Nikkor 400mm f5,6 IF-ED
Jupiter 37A 135mm F3,5 (olympic version)
Industar 50-2 50mm pancake lens, black
Nikkor AI-S 24mm F2,8
Super Takumar 150mm F4 -- 35mm F3,5 -- 200mm F4
SMC Takumar 50mm F1,8 -- 105mm F2,8 -- 135mm F3,5 -- 135mm F2,5 -- 28mm F3,5
SMC Takumar 100mm F4 Macro
Super Tak 50mm Macro F4
SMC Pentax 40mm F2,8
RMC Tokina 24mm F2,8 -- 28mm F2,8 -- 17mm F3,5
Manual extension tubes. |
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GrahamNR17
Joined: 17 Jan 2009 Posts: 1855 Location: Norfolk, UK
Expire: 2012-09-06
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Posted: Wed Apr 15, 2009 7:00 pm Post subject: |
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GrahamNR17 wrote:
Wow, that thing performs superbly!
Glad it found its way into capable hands |
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peterqd
Joined: 28 Feb 2007 Posts: 7448 Location: near High Wycombe, UK
Expire: 2014-01-04
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Posted: Wed Apr 15, 2009 7:48 pm Post subject: |
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peterqd wrote:
That didn't take you long! Looks like you got it back in proper condition again, great work by you and I'm glad I could help a little. I take it you didn't need to remove the aperture dial. _________________ Peter - Moderator |
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pwsonline
Joined: 30 Nov 2008 Posts: 36 Location: Netherlands
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Posted: Fri Apr 17, 2009 7:58 am Post subject: |
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pwsonline wrote:
The brass rings on the back of the lens were easy to remove. It is a nice construction if one knows how the optics have to be arranged , and indeed, the aperture assembly remained untouched. Thanks man! _________________ Nikon system user. (D700, F80, EM + various AF hardware. Nice but not in this group...)
Pentax K5 and ME-Super + various AF and MF lenses (I love the built in SR!!)
Long tele:
MF lenses:
MTO-11CA 1000mm mirrorlens
Pentacon 500mm F5,6
Meyer Orestegor 300mm F4
Tele Ennalyt (Revue) 400mm F4,5
AI-S Nikkor 400mm f5,6 IF-ED
Jupiter 37A 135mm F3,5 (olympic version)
Industar 50-2 50mm pancake lens, black
Nikkor AI-S 24mm F2,8
Super Takumar 150mm F4 -- 35mm F3,5 -- 200mm F4
SMC Takumar 50mm F1,8 -- 105mm F2,8 -- 135mm F3,5 -- 135mm F2,5 -- 28mm F3,5
SMC Takumar 100mm F4 Macro
Super Tak 50mm Macro F4
SMC Pentax 40mm F2,8
RMC Tokina 24mm F2,8 -- 28mm F2,8 -- 17mm F3,5
Manual extension tubes. |
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Jieffe
Joined: 04 Nov 2007 Posts: 754 Location: Belgium
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Posted: Fri Apr 17, 2009 8:26 am Post subject: |
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Jieffe wrote:
Wow ! it was worth the effort to disassemble the lens ... I prefer the "after" version
Most probably the guy who sold it to you spotted fungus before sending it.
I recently cleaned a 50mm Tak (fungus on both front and rear lenses) and it was fortunately quite easy to dismantle (and re-assemble, not always my forte ). But is is also easy to invert elements. |
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