Pentax- A SMC 135mm F2.8

Discussion in 'Pentax' started by Bhup, Oct 20, 2005.

  1. Bhup

    Bhup Guest

    Is this lens good I currently have a - Pentax M 135mm SMC F3.5 I have read
    somewhere the F2.8 A version has a lot of barrel distortion .. Am I better
    to stick to my F3.5 lens ?
    Using A pentaz Film body ( Super A)
     
    Bhup, Oct 20, 2005
    #1
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  2. Bhup

    Tony Polson Guest

    "Bhup" <> wrote:

    >Is this lens good I currently have a - Pentax M 135mm SMC F3.5 I have read
    >somewhere the F2.8 A version has a lot of barrel distortion .. Am I better
    >to stick to my F3.5 lens ?
    >Using A pentaz Film body ( Super A)



    Hi Bhup,

    I have no knowledge of the 135mm f/2.8 but several Pentax lenses
    exhibit significant rectilinear distortion.

    The SMC Pentax-M 135mm f/3.5 is not one of them. It is also superbly
    sharp and has good bokeh. You should think carefully before replacing
    this lens. Together with the SMC Pentax-M 35mm f/3.5 it is one of the
    best buys in Pentax glass.

    The SMC Pentax 135mm f/2.5 is an excellent lens. It is the K mount
    version of the SMC Takumar 135mm f/2.5 and is an outstanding
    performer, with superb sharpness and bokeh. It is quite rare.

    There is also an SMC Pentax-A* 135mm f/1.8 which is an exceptional
    performer. However, it is very rare and, like most A* lenses, it
    sells at very high prices.

    Avoid the Pentax Takumar Bayonet 135mm f/2.5, a cheap K mount lens
    that was bought in by Pentax. IMHO the Takumar Bayonet range is
    something Pentax should never have commissioned as it lacks the
    optical qualities that informed buyers seek when buying Pentax glass.
     
    Tony Polson, Oct 20, 2005
    #2
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  3. Bhup <> wrote:
    : Is this lens good I currently have a - Pentax M 135mm SMC F3.5 I
    have read
    : somewhere the F2.8 A version has a lot of barrel distortion .. Am I better
    : to stick to my F3.5 lens ?
    : Using A pentaz Film body ( Super A)

    I've never use this lens, but it does not have a very good reputation
    among Pentax users; see http://stans-photography.info/ for details.
    (Click on "Long Prime Lenses" then scroll to the discussion of 135mm
    lenses.)

    I do have the Pentax M 135mm SMC f3.5 lens that you mention, and it is
    excellent. The lens is very sharp, and I have never noticed any
    significant distortions. It will have metering problems with the
    lastest bodies with the "crippled" K-A mount, but that will not be
    a problem with the Super A (Super Program in the US). I would advise
    you to save your money and get a lens in a different focal length.

    Warren B. Hapke
     
    Warren B. Hapke, Oct 20, 2005
    #3
  4. Bhup

    no_name Guest

    Tony Polson wrote:

    > "Bhup" <> wrote:
    >
    >
    >>Is this lens good I currently have a - Pentax M 135mm SMC F3.5 I have read
    >>somewhere the F2.8 A version has a lot of barrel distortion .. Am I better
    >>to stick to my F3.5 lens ?
    >>Using A pentaz Film body ( Super A)

    >
    >
    >
    > Hi Bhup,
    >
    > I have no knowledge of the 135mm f/2.8 but several Pentax lenses
    > exhibit significant rectilinear distortion.
    >
    > The SMC Pentax-M 135mm f/3.5 is not one of them. It is also superbly
    > sharp and has good bokeh. You should think carefully before replacing
    > this lens. Together with the SMC Pentax-M 35mm f/3.5 it is one of the
    > best buys in Pentax glass.
    >
    > The SMC Pentax 135mm f/2.5 is an excellent lens. It is the K mount
    > version of the SMC Takumar 135mm f/2.5 and is an outstanding
    > performer, with superb sharpness and bokeh. It is quite rare.
    >
    > There is also an SMC Pentax-A* 135mm f/1.8 which is an exceptional
    > performer. However, it is very rare and, like most A* lenses, it
    > sells at very high prices.
    >


    I've actually seen that lens in a screw mount (camera shop in Norfolk,
    VA about 20 years ago), but never in K-mount (or Ka) and I've searched
    for it ... a lot.


    > Avoid the Pentax Takumar Bayonet 135mm f/2.5, a cheap K mount lens
    > that was bought in by Pentax. IMHO the Takumar Bayonet range is
    > something Pentax should never have commissioned as it lacks the
    > optical qualities that informed buyers seek when buying Pentax glass.
    >
    >
     
    no_name, Oct 21, 2005
    #4
  5. Bhup

    Cheesehead Guest

    The M 135/3.5 is a good lens.
    Optically it's one of the better of the M series.
    I've got an excellent one for sale on eBay right now. (seller id:
    dpconsult.com)
    The only lack it really has is its speed.

    The "A" 135/2.8 isn't a really bad lens. It's just not up to par with
    the other
    fine lenses Pentax has produced.

    Personally, I think 135 is too long. The M100/2.8 or A100/2.8 are far
    more
    versatile and sell for reasonable prices. The A is very uncommon
    compared
    to the M. But both are good choices and more practical. I use my
    A100/2.8
    as a portrait lens (when shooting film). It gives me a working
    distance of
    about 8 ft. Not too far. (With Pentax digital the 50mm becomes my
    portrait lens.)

    Collin
    KC8TKA
     
    Cheesehead, Oct 22, 2005
    #5
  6. Bhup

    rstumbras

    Joined:
    Jun 24, 2013
    Messages:
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    I bought a Pentax MG from craigslist and it came with a k mount Takumar f2.8 135mm, have not had a chance to try it out but will post.
     
    rstumbras, Jun 24, 2013
    #6
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