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ProfHankD is just starting with 122 overall Likes

ProfHankD ProfHankD is offline

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  1. akanarya
    Thanks for reply Hank,

    I am using t70-300 more than one year, and did several trials; tripod, mirror lock-up,
    aperture and shutter values, different light conditions.
    Sometimes it produce good results, but generally not. I think it has focus problems,
    and it needs very precise focussing in order to obtain better results.
    Or my copy is not so good.
    But when I look 55-300 results, they seem much more usable results than my tamron.

    Here some good examples;

    iso100, 300 f5.6 1/320

    iso100, 300mm f11 1/320
  2. akanarya

    I saw your review about the smc takumar 300 f4.
    I have a plan to get one because I can't afford for neither dfa nor a* 300mm.

    So, I have tamron 70-300, but I am very dissapointed about the sharpness of it.
    if you had an experince or oppinion about
    this takumar and consumer teles like tamron/sigma 70-300, pentax 55-300 etc,
    your thougths are heighly appreciated.

    I want a much better 300mm than my tamron with a reasonable price.


About Me

  • About ProfHankD
    United States
    Lexington, KY
    Real Name
    Hank Dietz
    Photographic Equipment
    I use LOTS of different cameras & lenses.
    As of August 2009, I had a Pentax Spotmatic with 55mm f/1.8 and Spiratone macro belows which I used back in the 1970s. However, as of October 2010, I have several Spotmatics and several dozen M42 lenses -- mostly Takumar or Vivitar, which I use primarily on my Sony DSLRs. As of October 2011, I'm mostly using Sony NEX with lenses of various mounts; the lenses that come in Pentax mounts, I generally review here -- I now own about 100 lenses.
    About Me
    Used to do freelance photography, now involved in digital imaging research (although still best known for supercomputing using Linux clusters).
    Electrical & Computer Engineering Professor


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General Information
  • Last Activity: 08-07-2022
  • Join Date: 08-30-2009
  • Referrals: 0
  • Total Likes Received: 122

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