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Showcase Spectra Duo-Focus 140mm f/4.5

Discussion in 'Adapted Lens Sample Image Showcase' started by WNG, May 21, 2015.

  1. WNG

    WNG TalkEmount All-Pro

    Aug 12, 2014
    Arrid Zone-A, USA
    Will
    A vintage 140mm f/4.5 range finder lens from circa 1958-1960. It comes with a matching 1.79x teleconverter which provides 230mm at f/7.9.
    It was made by Taisei Optical Industries, the company we know as Tamron today. This lens had numerous variants and names. The Spectra was a model with the bare aluminum finish.
    It has a continuous 12-blade aperture and stop down pre-set ring. It appears to be an early version of the T-mount at 37mm.
    It creates very rich-colored and sharp photos. Even does well with the teleconverter. A very pleasant surprise.

    17228917053_10dd3d86d2_b. Shiny Old Things 12 by wNG 555, on Flickr
    17830403512_baa400775c_b. Shiny Old Things 10 by wNG 555, on Flickr
    17646836509_c8e9588aa6_b. Shiny Old Things 8 by wNG 555, on Flickr

    The following at 140mm, f8 or f11, and white balance set to Daylight....

    17719378890_ff985a36c6_b. DSC03347a_Spectra Duo Focus 140 f4.5 by wNG 555, on Flickr
    17284389554_46968d6281_b. DSC03348_Spectra Duo Focus 140 f4.5 by wNG 555, on Flickr
    17906897535_a428bc428e_b. DSC03345_Spectra Duo Focus 140 f4.5 by wNG 555, on Flickr
    17284321414_e5e5aefdcd_b. DSC03339_Spectra Duo Focus 140 f4.5 by wNG 555, on Flickr
    17907375861_d3ce81f002_b. DSC02154_Spectra Duo Focus 140 f4.5 by wNG 555, on Flickr
    17907364441_9fda92b748_b. DSC02147_Spectra Duo Focus 140 f4.5 by wNG 555, on Flickr
    17718968828_6df2325415_b. DSC02151_Spectra Duo Focus 140 f4.5 by wNG 555, on Flickr

    A crop taken at 140mm 30 ft away.

    17720678989_df73e433b9_b. DSC02144c_Spectra Duo Focus 140 f4.5 by wNG 555, on Flickr

    This one was a bit washed out pointing upward, so a bit of boost to contrast and color. A lens hood would be useful for this lens.

    17906791915_03d33a6d15_b. DSC02103_Spectra Duo Focus 140 f4.5 by wNG 555, on Flickr
     
    Last edited: May 22, 2015
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  2. WNG

    WNG TalkEmount All-Pro

    Aug 12, 2014
    Arrid Zone-A, USA
    Will
    And continued with samples utilizing the matched 1.79x converter....

    17286390713_470f6d0d08_b. DSC02296_Spectra Duo Focus 140 f4.5 [TC] by wNG 555, on Flickr

    17720606499_5d4e5ca2c8_b. DSC02298_Spectra Duo Focus 140 f4.5 [TC] by wNG 555, on Flickr

    These two are crops, the birds were 20 ft. away.

    17907498871_50d611ff91_b. DSC02260a_Spectra Duo Focus 140 f4.5 [TC] by wNG 555, on Flickr

    17284373514_1c329553a2_b. DSC02295_Spectra Duo Focus 140 f4.5 [TC] by wNG 555, on Flickr

    17284304194_6a92fcce27_b. DSC02308_Spectra Duo Focus 140 f4.5 [TC] by wNG 555, on Flickr

    17719282810_54d7caca20_b. DSC02307_Spectra Duo Focus 140 f4.5 [TC] by wNG 555, on Flickr

    17880494616_192b342dfc_b. DSC02314_Spectra Duo Focus 140 f4.5 [TC] by wNG 555, on Flickr
     
    Last edited: May 21, 2015
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  3. WoodWorks

    WoodWorks Super Moderator

    Dec 12, 2012
    Ashland, OR, USA
    David
    What a beauty, and it appears to be a good performer as well. A two-fer! :thumbup:
     
  4. WNG

    WNG TalkEmount All-Pro

    Aug 12, 2014
    Arrid Zone-A, USA
    Will
    Yup! Proof that good things come in small packages. ;)
     
  5. davect01

    davect01 Super Moderator

    Aug 20, 2011
    Fountain Hills, AZ
    Dave
    Sure is a pretty looking lens.
     
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  6. chrid

    chrid Super Noob

    807
    May 5, 2014
    australia
    Chris
    Goes to show how good some classic glass can perform.
     
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  7. eastwestphoto

    eastwestphoto New to TalkEmount

    8
    Dec 14, 2015
    Agree the lens is Most excellent for very early Taika Tamron. As to taisei Kogaku history, its possible they made many great Japanese folding cameras. What amazes me is the sharpness & Contrast of this duo lens. The helicoil focus is smooth, my example has a somewhat stiff preset design but works, the aperture is 12 blades good bokeh.
     
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