Panasonic G1 - some AF numbers

Discussion in 'Panasonic Lumix' started by Mark Thomas, Nov 13, 2008.

  1. Mark Thomas

    JulianGaphor Guest

    GOOD! Don't buy it! The G1 is not for the amateur snapshooter like yourself!
    Situation resolved!

    LOL
     
    JulianGaphor, Nov 15, 2008
    #21
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  2. Mark Thomas

    Steve Guest

    Lol,... You need a course in reading comprehension. Again, the EVF
    lag can't be due to the shutter because the shutter is not actively
    doing anything during except when it snaps a picture. So yes, I do
    know and I'm not just guessing.
    I'm sure it has no impact for your practical purposes. That's because
    you don't use a P&S for the same type of photography that many people
    use a DSLR for. I.e., tracking and shooting fast changing motion like
    sports.

    Steve
     
    Steve, Nov 15, 2008
    #22
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  3. Mark Thomas

    Steve Guest

    Which is exactly what I said. No space between color dots will make
    an equivalent resolution display look better. But it will NOT resolve
    any more detail. So it makes no difference in terms of resolution. It
    just looks nicer, which is... well, nice.
    It could be tough to focus and frame certain things you might want to
    take a picture of if all of the shadow detail is blank. Things that
    have an extremely bright but small subject that you want properly
    exposed but still would like to see it in relation to it's
    surroundings. The surroundings would be lost.
    I bring it up because it's an issue for fast action shooting.
    Something that I do frequently. For instance, I take pictures at
    airshows. It would be very difficult to get a shot like this:

    http://www.airshowbuzz.com/files/photo/gallery/photos/orig_14538_5e346.JPG

    if you have an EVF lag of 100ms or even half that. You'd have to
    leave it to luck and maybe go to 50 airshows before you got one at the
    instant the planes cross.
    On the G1, the main LCD also blanks out during continuous shooting.
    Obviously, if you don't use burst shooting on moving subject it's not
    an issue for you. So go ahead and get one. But I do. So it's a deal
    breaker.
    Exactly. However, it looks like the G1 is trying to market itself as
    a DSLR replacement. Especially since it costs so much. So it
    obviously begs comparison with DSLRs. And one of the areas it falls
    short in this comparison is with action shooting.

    Steve
     
    Steve, Nov 15, 2008
    #23
  4. Mark Thomas

    Steve Guest

    I agree it's impressive as far as EVFs go.
    Agree with that also. I was just at Best Buy and there was a Canon
    Rebel XSi sitting right next to a Nikon D90. The difference was
    amazinig. The D90 was so much better.
    Can't do that either.
    A Sony R1 is a huge camera in P&S terms. It's about as much a P&S as
    a small DSLR in auto mode. I certainly can't fit one in my pocket so
    I can carry it around all the time. If you're coming from an R1 and
    that's what you're comparing it to, I'm sure the G1 could seem very
    attractive.

    Steve
     
    Steve, Nov 15, 2008
    #24
  5. Mark Thomas

    Steve Guest

    No, the article does not say that the lag in the EVF is proportional
    to the exposure time. If it did say that, then I'd agree that it has
    something to do with shutter speed. But it does not.
    A 10ms delay does have an impact for someone who doesn't care about a
    10ms delay. But they just don't care.

    Steve
     
    Steve, Nov 15, 2008
    #25
  6. Mark Thomas

    Steve Guest

    Well jeez, a pocket sized P&S is also a DSLR replacement for certain
    purposes. But they are not being marketed or priced that way. So
    I'll give them a break and won't compare them to a D3 for sports
    photography. But the G1 is being marketed and priced as a DSLR
    replacement. I'm also not going to compare it with a D3 because it's
    obvious where that comparison will lead. But I am going to compare it
    with similarly priced low-end DSLRs.
    I think I need to wait for the G2.

    Steve
     
    Steve, Nov 15, 2008
    #26
  7. Mark Thomas

    Steve Guest

    It's much, way, completely different. And you even said they key to
    why it's different. No matter how well you try, you cannot build a
    mix and match modular system of add-on lenses where the
    elements/groups are matched as well as the elements/groups within a
    single lens.

    It may be very often the case you can match things that produce an
    acceptably muddy image. But you'll never do it as well as current
    lens design where the designer has control of every element/group.

    Years ago, when lens design was much more trial and error than the
    computer aided designs of today, you may have had a hope of being
    comparible to some of the lesser designs. Not anymore.

    Steve
     
    Steve, Nov 15, 2008
    #27
  8. Mark Thomas

    dj_nme Guest

    Not quite true, the Leica SLR lenses have the same back-focus distance
    as M42 and Pentax-K mount and are adaptable via a simple metal ring to
    EOS or 4/3.
    That's not what I'm after, RF lenses (M or M39) are what I meant and
    these cannot be adapted to any (d)SLR camera for anything other than
    macro use.
     
    dj_nme, Nov 17, 2008
    #28
  9. Mark Thomas

    J. Clarke Guest

    The flange distance on Micro four thirds is about 20mm, which is
    enough less than that of the Leica M that Leica M lenses should be
    usable with a suitable adapter. Not sure of the significance of that,
    if there is any, but thought I'd throw it out.
     
    J. Clarke, Nov 17, 2008
    #29
  10. Mark Thomas

    Guest Guest

    ken rockwell admits he makes up stuff. he also claims he can't tell
    the difference between a canon 5d and a pocket sized digicam. are you
    sure he's the source you want to quote?
    they use different formulations. just because it's flourite doesn't
    mean it's the worlds best lens. both nikon and canon have great
    lenses.
     
    Guest, Nov 17, 2008
    #30
  11. Mark Thomas

    Steve Guest

    This camera has a special mode, a depth-of-time preview that's not
    always active. I don't know whether they use an electronic shutter to
    show the depth of time preview or actually snap series of shots with
    he mechanical shutter. The review says that when in that mode, the
    display is refreshed at a preset interval so it leads me to believe
    they're using the mechanical shutter. Either way, I don't see why
    they'd slow down the shutter to the user set value when not in that
    depth-of-time preview mode.

    And if they are using the mechanical shutter with a display that
    updates at preset intervals, I don't see how it's all that much
    different than any other digital camera if you just take a picture,
    look at the preview and then take another with different settings if
    you don't like that one.

    Steve
     
    Steve, Nov 18, 2008
    #31
  12. Mark Thomas

    Steve Guest

    Yours probably also gives a continious view, just delayed more and
    more as the shutter slows down. This G1 apparently does not. If they
    used an electronic shutter, it could.
    Yes, that's what it looks like. Wide open preview by default and you
    can stop it down both in aperature and speed with some button presses.

    Steve
     
    Steve, Nov 18, 2008
    #32
  13. Mark Thomas

    Marty Fremen Guest

    I agree, in fact I don't believe I've ever owned a camera which gave an
    accurate sense of depth of field (and I'm including 35mm SLRs in stopped-
    down mode here), things always looks sharper in the viewfinder than in the
    final print. As for LCD previews, even completely out of focus shots
    sometimes look sharp unless you zoom in a lot, which is something you can
    normally only do after taking the shot, not whilst composing it.
     
    Marty Fremen, Nov 24, 2008
    #33
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