Site Sponsors
Results 1 to 9 of 9

Thread: Sony NEX 7 and UWA lenses

  1. #1
    Subscriber Member kit laughlin's Avatar
    Join Date
    Nov 2007
    Location
    Two suitcases and the latest MBA
    Posts
    1,301
    Post Thanks / Like

    Sony NEX 7 and UWA lenses

    Hello all,

    has anyone tried either of the Cosina Voigtlander UWA lenses (12/5.6 and 15/4.5) on the NEX 7? And, if so, how much smearing of detail is there at the edges?

    TIA, kl

  2. #2
    nex100
    Guest

    Re: Sony NEX 7 and UWA lenses

    Dierk Topp actually used this combo for a couple of landscape shots.

    NEX-7 with 12mm Heliar

    Without Corner Fix

    With Corner Fix

    I downloaded the original file. Although the edges are not super sharp but I think it is still ok for landscape shots.

  3. #3
    Subscriber Member kit laughlin's Avatar
    Join Date
    Nov 2007
    Location
    Two suitcases and the latest MBA
    Posts
    1,301
    Post Thanks / Like

    Re: Sony NEX 7 and UWA lenses

    Well—they look great to me. Did he mention what aperture? I can't help wondering if this problem has been exaggerated; I cancelled my NEX 7 order for that reason (the alleged smearing) and landscapes need detail in the corners and edges—and these images look great to me. Is Dierk a member here, does anyone know?

  4. #4
    Subscriber Member kit laughlin's Avatar
    Join Date
    Nov 2007
    Location
    Two suitcases and the latest MBA
    Posts
    1,301
    Post Thanks / Like

    Re: Sony NEX 7 and UWA lenses

    I have contacted him via Flickr and asked him to join in here; seems like an important point to clear up. I am using the GXR (no AA filter) and almost a full range of CV lenses, and (especially on the UWA end) very happy with the results. Still, 24Mp and that EVF..

  5. #5
    Senior Member etrigan63's Avatar
    Join Date
    Nov 2007
    Location
    Earth, Sol System (near Miami, FL)
    Posts
    2,366
    Post Thanks / Like
    Images
    20

    Re: Sony NEX 7 and UWA lenses

    I have to agree Kit, the 12mm Heliar looks pretty good on the NEX-7.
    Carlos Echenique 写真撮影
    flickr | blog | forum | pro gallery

  6. #6
    Super Duper
    Senior Member

    Join Date
    Apr 2008
    Location
    Netherlands
    Posts
    10,737
    Post Thanks / Like
    Images
    2

    Re: Sony NEX 7 and UWA lenses

    Kit, I have the 15mm CV lens , have tried it indoors. I will not be using it on the NEX-7.

    I look forward to the 19/2.8 from Sigma and perhaps there will be others to follow.

    The NEX-7 is a fine camera but those M mount/LTM lenses have severe limits on it.

    Some Arriflex mount Zeiss distagons have been tried earlier on the NEX-5. Wolfgang (member "Arri") knows the 16/2 Distagon well.

  7. #7
    nex100
    Guest

    Re: Sony NEX 7 and UWA lenses

    No need to worry about corners when you crop. Just take the center of the lens. This is how much you can crop.

    1:1 crop

    Actual image

  8. #8
    Super Duper
    Senior Member

    Join Date
    Apr 2008
    Location
    Netherlands
    Posts
    10,737
    Post Thanks / Like
    Images
    2

    Re: Sony NEX 7 and UWA lenses

    NEX100, The links are from a 24/1.8 E-Sonnar.

  9. #9
    Member dierk's Avatar
    Join Date
    Feb 2010
    Location
    Hamburg, Germany
    Posts
    105
    Post Thanks / Like

    Re: Sony NEX 7 and UWA lenses

    I would like to answer your questions.

    As far as I remember, it was f/8 on this particular photo (here without cornerfix):


    if it is of any interest, I can upload the RAW file.
    The bottom corner on the left look poor for me, the upper right corner looks better, but is more away. I use a very cheap M-adapter (only 38), but wit an ultra wide the DOF at f/8 should compensate any misalignment of the adapter.

    @nex100,
    when using the 12mm Heliar, you crop by crop factor 1.5 already. When I have a 24 MPix camera, I want to use the full potential of the RAW (with slides in the analog world crop was no option anyway )
    With my M9 I have to crop almost every image, as the finder is just not correct enough.

    Landscapes with a 12mm for me is not the best solution and you often have to crop the bottom part, because it is useless (and you may get your feet into the picture). I use longer lenses and stitch. With this technique there are no problems in the corners and you get as many resolution and pixels, as you want.
    For me the 12mm is best for dynamic scenes or extreme views and positions.

    @Carlos, fantastic gear on your home page
    regards
    dierk
    my flickr

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •