Sony Zeiss Lenses

Discussion in 'Photography Equipment & Products' started by sdgmusic, Mar 8, 2009.

  1. sdgmusic

    sdgmusic TPF Noob!

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    What is the difference between the Sonnar and Planar Lenses. Other than their focal length and other features, what between these two makes the GLASS different?
     
  2. dxqcanada

    dxqcanada Been spending a lot of time on here!

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    Wikipedia:

    Compared to Planar designs the Sonnars had more aberrations, but with fewer glass-to-air surfaces it had better contrast and less flare.

    While very sharp, the Planar lens suffered from flare due to its many air-to-glass surfaces. In the 1950s, when effective anti-reflective lens coatings became available, coated Planars were produced with much-improved flare.
     
  3. dxqcanada

    dxqcanada Been spending a lot of time on here!

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    Also, the Sonnar and Planar lens designs are used for different types of focal lengths.

    The Planar design is better for fixed focal length.
    The Vario-Sonnar is better for zoom lenses.
     

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