Showcase Vivitar 90-180mm f/4.5 (Series 1, Flat-Field Zoom)

Discussion in 'Adapted Lens Sample Image Showcase' started by eno789, Mar 23, 2014.

  1. eno789

    eno789 TalkEmount Top Veteran

    720
    Jan 1, 2012
    NoCal, USA
    Brian
    • Like Like x 5
  2. davect01

    davect01 Super Moderator

    Aug 20, 2011
    Fountain Hills, AZ
    Dave
    Well done
     
    • Like Like x 1
  3. WoodWorks

    WoodWorks Super Moderator

    Dec 12, 2012
    Ashland, OR, USA
    David
    Those are all beautiful, Brian, especially the first two. And the way that lens renders the background, it's like buttah!
     
    • Like Like x 1
  4. alaios

    alaios TalkEmount All-Pro

    Jan 11, 2013
    Düsseldorf
    Alex
    I guess you would had hard time finding the right focus. What is the minimum focus distance of this lens?
     
  5. xXx1

    xXx1 TalkEmount All-Pro

    Jan 15, 2013
    It is always hard to focus macro photos. A 90 mm lens at aperture 8 and focusing distance of 40 cm has got depth of field (technical, restricted by camera sensor) 2 mm (Nex 16 MP sensor). In practice blur will be too much for something like 1-2 cm or so. Quite many macro photos are stacked. One stack may contain tens or more photos.
     
  6. eno789

    eno789 TalkEmount Top Veteran

    720
    Jan 1, 2012
    NoCal, USA
    Brian
    Minimum focus distance is 70cm, max magnification is 1:2 at 180mm