Lenses designed for digital superior to old film versions

Discussion in 'Digital SLR' started by Rich, Nov 18, 2005.

  1. Rich

    Rich Guest

    From Steve's Digicams

    http://www.steves-digicams.com/2005_reviews/e500_pg2.html

    Lenses that are smart, that talk with the camera about their specific
    optical designs and imaging information. Lenses, particularly zoom
    lenses have some distortion. This is true of all manufacturers. Zuiko
    Digital Lenses store data in the header portion of the digital file
    allowing for software-assisted correction of anomalies including pin
    cushion and barrel distortion.

    Shoot wide open or stopped all the way down and achieve superior
    results over 35mm film based lenses. Zuiko Digital Specific Lenses are
    about three times the resolution of ordinary film based lenses.
     
    Rich, Nov 18, 2005
    #1
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  2. Rich

    Father Kodak Guest

    I read this post and I went to the web site to read the entire
    "review." I'm not familiar with this site, so I can't make an
    overall comment. However, this "review" was nothing more than a press
    release cut-and-paste. Maybe this stuff works, and maybe it doesn't
    but you can't learn from this "review." I'll wait until Phil Askey
    posts a review if I'm interested enough in this camera (which I'm
    not.)

    Also, before there were digital cameras, there were auto-focus and
    vibration reduction lenses. And before those, auto stopdown lenses
    and multi-coated lenses.

    Pere Kodak
     
    Father Kodak, Nov 18, 2005
    #2
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  3. Rich

    Basic Wedge Guest

    ...
    You're not familiar with Steve's Digicams site???
    That must have been quite a volumous press release!
    Yah, Phil's good. He's not the end all and be all of on-line equipment
    reviews. It may not hurt you to broaden your horizons a little.
    .... and that means... what? Lens technology is constantly improving and the
    lenses Rich has referenced may be another step forward? Okay, I might agree
    with that.

    Rob
     
    Basic Wedge, Nov 18, 2005
    #3
  4. Rich

    Norm Dresner Guest

    Umm ... lenses -- even "Digital Lenses" don't store anything in any file.
    The camera body does it -- and it does it with all lenses that transmit that
    information to it. For some camera systems only so-called "Digital" lenses
    do it but for others may more lenses have that information available too.

    I doubt that.

    In fact ...

    I don't believe it at all.

    Norm
     
    Norm Dresner, Nov 18, 2005
    #4
  5. Rich

    RichA Guest

    It's a bold claim, but even a 20-30% increase is like adding pixels.
     
    RichA, Nov 18, 2005
    #5
  6. Rich

    Father Kodak Guest

    Of course I am * aware * of this site. But there is only so much time
    in the day that I can devote to reading about photography, as opposed
    to eating, sleeping, I barely have the time to participate in some
    usernet n/groups and peruse Phil's site, which I use mostly for the
    forums.
    C'mon. Gimme a break here.

    A press release can run to 2 pages if necessary. I have written press
    releases from time to time (albeit for computer software), but the
    principle is the same. A lot of "reporters" are too lazy to do a real
    story, and so they simply do a story that excerpts from the press
    release. The * good * reporters will call up the people who are
    quoted in the story, or perhaps call up other people for a
    cross-check.

    A lot of web sites will simply "reprint" a press release, and there
    is nothing wrong with that as long as the reader can discern that that
    is the case. The problem I had with Steves Digicams story is that he
    made it sound like he had personally used these lenses or could
    otherwise validate the claim.

    I said I wasn't "familiar" with that site because I haven't spent any
    time reading the materials there, so I couldn't make any assumptions
    about the site overall, as a credibility check.
    Of course not. That is the purpose served by the forums on Phil's
    site and these newsgroups.
    Sure there has been continuous progress in lens design. But the 200%
    to 300% improvement claimed in the article in question? I doubt that.
    Olympus has never been known for the superiority of its lenses, not
    compared with Leica, Nikon, or Canon. What is it that they are doing
    that any of those three companies aren't doing? And if they have some
    kind of breakthrough, where are the announcements of the patent
    applications?
    Padre Kodak
     
    Father Kodak, Nov 18, 2005
    #6
  7. Rich

    Chris Luck Guest


    He's already been there and done that -
    http://www.dpreview.com/reviews/olympuse500/

    For the benefit of the completely uninterested here's a brief quote -

    " Image quality is on the whole very good, resolution essentially as good as
    the EOS 350D (Digital Rebel XT), although perhaps not as per-pixel crisp..."
     
    Chris Luck, Nov 19, 2005
    #7
  8. Rich

    Stacey Guest

    Father Kodak wrote:

    LOL! You haven't been around much have you?
     
    Stacey, Nov 20, 2005
    #8
  9. Rich

    Stacey Guest


    Yea but he was using a prime lens on the canon. Phil tests camera bodies not
    lenses, put the kit zoom on both and see what happens.
     
    Stacey, Nov 20, 2005
    #9
  10. Rich

    Rich Guest

    One of their zooms just beat the Nikkors in one mag test.
    -Rich
     
    Rich, Nov 20, 2005
    #10
  11. Rich

    Skip M Guest

    Oly has long been known for the high quality of their lenses. That they
    beat out a Nikkor should come as no surprise to anyone...
     
    Skip M, Nov 21, 2005
    #11
  12. The later pages seem to have stuff that Steve wrote, not the Olympus
    PR department. So what does Steve have to say about one of these
    wonderful Digital Lenses? Here's a quote:

    "The Zuiko Digital 40-150mm kit lens also complements the E-500; its 80-300mm
    35mm-equivalent focal length is an effective telephoto zoom range for your
    distant subjects. The 40-150 exhibits a bit of pin cushioning at 40mm and
    barrel distortion at 150mm. Images are a bit soft with the aperture fully open
    and stopped down, but sharpness is very good at moderate aperture settings."

    Somehow there seems to be a discrepancy between the "three times the
    resolution" claim that Rich posted and the "a bit soft" report by Steve.

    Dave
     
    Dave Martindale, Nov 24, 2005
    #12
  13. Shoot wide open or stopped all the way down and achieve superior
    You shouldn't. If you read the rest of the review, after getting past
    the cut-and-paste of Olympus PR, what Steve actually says about one
    of these "digital lenses" is that it is "a bit soft" both wide open
    and stopped down, but good at moderate apertures.

    Either Rich didn't bother to read the whole "review", or he deliberately
    misled by quoting the PR claims while omitting the actual review comments.

    Dave
     
    Dave Martindale, Nov 24, 2005
    #13
  14. Rich

    Rich Guest

    I don't believe three times, nor do I believe Steve as every other
    review of that lens has it easily beating anything in it's class (and
    beyond).
    -Rich
     
    Rich, Nov 24, 2005
    #14
  15. Rich

    cjcampbell Guest

    Gosh, whoever wrote this hates verbs, doesn't he? It is difficult to
    tell just what is being said here or what the claimed benefits of these
    lenses are. The non-standard terminology ("brightness" instead of
    "aperture?") also raises a few flags.

    I also will wait for a real review instead of a Japlish press release.
    The claim of three times the resolution of film lenses is suspect.
    Besides, why bother? The digital sensor has less resolution than film.

    All of that said, the newest generation of lenses, not just those from
    Olympus, has been very impressive. The Nikon 18-70mm kit lens is an
    incredible lens for the money, despite gripes about the minor
    vignetting. The same goes for the Canon lenses.
     
    cjcampbell, Nov 25, 2005
    #15
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