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dave_t
Joined: 16 Sep 2008 Posts: 214
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Posted: Sun Mar 18, 2012 5:23 pm Post subject: Adjusting infinity focus on Super Takumar 200/4 |
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dave_t wrote:
Upon upgrading my camera to something with more resolution and more accurate live view, it is now clear that my Super Takumar 200/4 doesn't reach infinity focus, which is unfortunate, as this is one of my favorite focal lengths to use overall. It seems to stop just short of reaching adequate focus as at around f/11 infinity becomes reasonably sharp.
I've considered getting a thinner M42/EOS adapter (does anybody have any specific recommendations?), which may provide the safest solution, but I'm wary of ordering anything and finding out that I end up with the same problem. In addition, the remainder of my M42 lenses, of which I have several, all reach infinity focus without issue.
If adjusting the focus on the Takumar is a relatively painless process, I will probably go this route, if not, then I'm open to any recommendations for thin M42/EOS adapters with reasonably quick shipping to destinations in Europe.
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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Sun Mar 18, 2012 6:27 pm Post subject: |
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luisalegria wrote:
I have a Super Takumar 200/4. Infinity on mine is just fine so I haven't had to adjust it, so take what I say below with a grain of salt.
I believe that by loosening the screws on the focus grip you can turn it a bit without engaging the helical.
Then you can move the grip a bit and retighten the screws, which should give a little more focus travel and get you to infinity. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Sun Mar 18, 2012 8:45 pm Post subject: Re: Adjusting infinity focus on Super Takumar 200/4 |
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Attila wrote:
dave_t wrote: |
Upon upgrading my camera to something with more resolution and more accurate live view, it is now clear that my Super Takumar 200/4 doesn't reach infinity focus, which is unfortunate, as this is one of my favorite focal lengths to use overall. It seems to stop just short of reaching adequate focus as at around f/11 infinity becomes reasonably sharp.
I've considered getting a thinner M42/EOS adapter (does anybody have any specific recommendations?), which may provide the safest solution, but I'm wary of ordering anything and finding out that I end up with the same problem. In addition, the remainder of my M42 lenses, of which I have several, all reach infinity focus without issue.
If adjusting the focus on the Takumar is a relatively painless process, I will probably go this route, if not, then I'm open to any recommendations for thin M42/EOS adapters with reasonably quick shipping to destinations in Europe.
Thanks! |
Ask Orio in pm if he not answer here, I think he know well all EOS M42 issue. _________________ -------------------------------
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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Aanything
Joined: 27 Aug 2011 Posts: 2187 Location: Piacenza, Italy
Expire: 2014-05-30
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Posted: Mon Mar 19, 2012 10:14 am Post subject: |
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Aanything wrote:
I had exactly the same problem with an auto takumar 35/2.3 on a sony alpha.
Sanding down an adapter was the solution i adopted so far: it took a lot of time, a lot of tries, and the sacrifice of a couple of adapters.
Maybe one day I'll try to work directly on the lens. _________________ C&C and editing of my pics are always welcome
Samples from my lenses
My gear
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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: Mon Mar 19, 2012 11:02 am Post subject: |
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peterqd wrote:
I don't know the longer focal length Takumars, but on the shorter ones (28, 35, 50) it is very simple to adjust the infinity setting. You need to unscrew the engraved ring in the filter thread round the front lens using a friction tool. I use a rubber glove for friction and press and turn it using a rear lens cap or the lid of a jar.
Under the ring there are 6 or 8 screws - half of them fix the front filter mount section and the other half (spaced intermittently) clamp the focus ring to the helicoil. These are usually in a cut-out section of the filter mount and you should slacken these slightly. Set the lens at correct focus on infinity through the viewfinder, then turn the focus ring (without adjusting the lens) to the infinity stop. Then tighten the screws and replace the engraved ring. _________________ Peter - Moderator |
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Aanything
Joined: 27 Aug 2011 Posts: 2187 Location: Piacenza, Italy
Expire: 2014-05-30
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Posted: Mon Mar 19, 2012 11:06 am Post subject: |
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Aanything wrote:
Thank you very much for the info.
I will try it as soon as I get home. _________________ C&C and editing of my pics are always welcome
Samples from my lenses
My gear
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