New 4/3 lenses from Sigma

Discussion in 'Digital Photography' started by Alfred Molon, Feb 25, 2006.

  1. Alfred Molon

    Alfred Molon Guest

    Sigma 30mm f/1.4
    http://www.ephotozine.com/news/fullnews.cfm?NewsID=2724

    And, yes, the 50-500:
    http://www.ephotozine.com/news/fullnews.cfm?NewsID=2725

    Sigma APO Macro 150mm F2.8 EX DG HSM
    http://www.ephotozine.com/news/fullnews.cfm?NewsID=2722

    Sigma 105mm F2.8 EX DG Macro
    http://www.ephotozine.com/news/fullnews.cfm?NewsID=2721

    Sigma 18-50mm F2.8 EX DC
    http://www.ephotozine.com/news/fullnews.cfm?NewsID=2723

    (multipy by 2 to get the focal length in 35mm equiv.)
    --

    Alfred Molon
    ------------------------------
    Olympus 50X0, 7070, 8080, E300, E330 and E500 forum at
    http://groups.yahoo.com/group/MyOlympus/
    Olympus E500 resource - http://myolympus.org/E500/
     
    Alfred Molon, Feb 25, 2006
    #1
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  2. Alfred Molon

    Paul Furman Guest

    off-topic reply because I'm not talking about the oly mount version...

    Alfred Molon wrote:

    > Sigma 30mm f/1.4
    > http://www.ephotozine.com/news/fullnews.cfm?NewsID=2724


    Hmm, that's interesting. Just a bit wider than 'normal' on an APS sensor
    (maybe longer than 50mm eq. on an Oly?) and at 1.4! $450

    sample shots:
    http://qgyen.net/photos/category1071.aspx
    -what's that star shaped highlight stopped down?

    http://www.pbase.com/aroid/sigma_30mm_f14_ex_dc_hsm

    http://www.pbase.com/miljenko/sigma30

    The Nikkon 35mm f/2 isn't all that great so this may be worth looking at
    & the 28mm f/1.4 is like $1,800 which is just silly for what used to be
    a $100 f/1.8 normal prime.
     
    Paul Furman, Feb 25, 2006
    #2
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  3. Alfred Molon

    Rich Guest

    On Sat, 25 Feb 2006 12:37:42 +0100, Alfred Molon
    <> wrote:

    >Sigma 30mm f/1.4
    >http://www.ephotozine.com/news/fullnews.cfm?NewsID=2724
    >
    >And, yes, the 50-500:
    >http://www.ephotozine.com/news/fullnews.cfm?NewsID=2725
    >
    >Sigma APO Macro 150mm F2.8 EX DG HSM
    >http://www.ephotozine.com/news/fullnews.cfm?NewsID=2722
    >
    >Sigma 105mm F2.8 EX DG Macro
    >http://www.ephotozine.com/news/fullnews.cfm?NewsID=2721
    >
    >Sigma 18-50mm F2.8 EX DC
    >http://www.ephotozine.com/news/fullnews.cfm?NewsID=2723
    >
    >(multipy by 2 to get the focal length in 35mm equiv.)


    These are lenses made for a 1.5x or 1.6x sensor, correct?
    They should work well with the 2x sensors since only the
    central portion of the light cone will be used.
    -Rich
     
    Rich, Feb 25, 2006
    #3
  4. Alfred Molon

    John Bean Guest

    On Sat, 25 Feb 2006 15:05:39 -0500, Rich <>
    wrote:

    >On Sat, 25 Feb 2006 12:37:42 +0100, Alfred Molon
    ><> wrote:
    >
    >>Sigma 30mm f/1.4
    >>http://www.ephotozine.com/news/fullnews.cfm?NewsID=2724
    >>
    >>And, yes, the 50-500:
    >>http://www.ephotozine.com/news/fullnews.cfm?NewsID=2725
    >>
    >>Sigma APO Macro 150mm F2.8 EX DG HSM
    >>http://www.ephotozine.com/news/fullnews.cfm?NewsID=2722
    >>
    >>Sigma 105mm F2.8 EX DG Macro
    >>http://www.ephotozine.com/news/fullnews.cfm?NewsID=2721
    >>
    >>Sigma 18-50mm F2.8 EX DC
    >>http://www.ephotozine.com/news/fullnews.cfm?NewsID=2723
    >>
    >>(multipy by 2 to get the focal length in 35mm equiv.)

    >
    >These are lenses made for a 1.5x or 1.6x sensor, correct?


    No, only some of them. The rest are full frame. It's easy to
    check the spec without having to guess.

    --
    John Bean
     
    John Bean, Feb 25, 2006
    #4
  5. "John Bean" <> wrote in message
    news:...
    > On Sat, 25 Feb 2006 15:05:39 -0500, Rich <>
    > wrote:
    >
    >>On Sat, 25 Feb 2006 12:37:42 +0100, Alfred Molon
    >><> wrote:
    >>
    >>>Sigma 30mm f/1.4
    >>>http://www.ephotozine.com/news/fullnews.cfm?NewsID=2724
    >>>
    >>>And, yes, the 50-500:
    >>>http://www.ephotozine.com/news/fullnews.cfm?NewsID=2725
    >>>
    >>>Sigma APO Macro 150mm F2.8 EX DG HSM
    >>>http://www.ephotozine.com/news/fullnews.cfm?NewsID=2722
    >>>
    >>>Sigma 105mm F2.8 EX DG Macro
    >>>http://www.ephotozine.com/news/fullnews.cfm?NewsID=2721
    >>>
    >>>Sigma 18-50mm F2.8 EX DC
    >>>http://www.ephotozine.com/news/fullnews.cfm?NewsID=2723
    >>>
    >>>(multipy by 2 to get the focal length in 35mm equiv.)

    >>
    >>These are lenses made for a 1.5x or 1.6x sensor, correct?

    >
    > No, only some of them. The rest are full frame. It's easy to
    > check the spec without having to guess.


    Only the Sigma "DC" lenses are made for a 1.5, 1.6, 1.7 sensor.
     
    Peter A. Stavrakoglou, Feb 26, 2006
    #5
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