User review Canon a720 IS

Discussion in 'Digital Photography' started by Paul van Andel, Sep 27, 2007.

  1. Paul van Andel, Sep 27, 2007
    #1
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  2. Paul van Andel

    Bill Tuthill Guest

    Paul van Andel <> wrote:
    >
    > I bought the Canon A720, and since no reviews are out there I wrote my own
    > :)
    > http://www.cpr.demon.nl/canon/index.html


    Thanks, that was interesting. In your 2nd sentence after "Reason buying"
    did you mistype A650 instead of A640? Because the 3rd sentence says A640.

    Odd product naming scheme: Canon gave the less-expensive lighter A720IS
    a higher number than the more-expensive A650IS.

    I almost bought an A640 but did not like the ergonomics, in particular
    my nose gets in the way of the viewfinder, which should be further left.
    The rotating LCD is great, though. Instead I got an SD800IS.
    Bill Tuthill, Sep 27, 2007
    #2
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  3. Paul van Andel

    ASAAR Guest

    On 27 Sep 2007 09:21:34 -0700, Bill Tuthill wrote:

    > Odd product naming scheme: Canon gave the less-expensive lighter
    > A720IS a higher number than the more-expensive A650IS.


    It's probably due to when each A#xx series was introduced. While
    DPReview's alphabetical index may not be complete, it shows that the
    first A5xx cameras in their list preceded the first A6xx cameras,
    and these were followed in 2006 by the A7xx series.


    > I almost bought an A640 but did not like the ergonomics, in particular
    > my nose gets in the way of the viewfinder, which should be further left.
    > The rotating LCD is great, though. Instead I got an SD800IS.


    That could have been corrected by a very good plastic surgeon. :)
    ASAAR, Sep 27, 2007
    #3

  4. > Thanks, that was interesting. In your 2nd sentence after "Reason buying"
    > did you mistype A650 instead of A640? Because the 3rd sentence says A640.


    I mean the A650, mist that typo, I'll correct it on the page.

    Thanks
    Paul
    Paul van Andel, Sep 27, 2007
    #4
  5. Paul van Andel, Sep 28, 2007
    #5
  6. Paul van Andel

    Morton Guest

    Paul van Andel wrote:
    > Hi all,
    >
    > I bought the Canon A720, and since no reviews are out there I wrote my own
    > :)
    > http://www.cpr.demon.nl/canon/index.html
    >
    > Regards
    > Paul
    >
    >

    Very nice review, thank you. Your English is rather good. Bedankt.

    Morton
    Morton, Sep 28, 2007
    #6
  7. Paul van Andel

    commando1854 Guest

    On Sep 27, 8:48 am, "Paul van Andel" <> wrote:
    > Hi all,
    >
    > I bought the Canon A720, and since no reviews are out there I wrote my own
    > :)http://www.cpr.demon.nl/canon/index.html
    >
    > Regards
    > Paul


    Hi,
    I just got one as well. It has many great features, almost allowing
    DSLR flexibility in a small camera.
    Two problems though.
    1) When shooting solid midtone objects at dusk (no real range-just
    shots of grass in even light-did this as a test), they are
    consistently overexposed. The histogram shows photos I know to be
    overexposed as being in the middle, and correctly exposed ones as
    being underexposed. I think the camera is set up biased somewhat
    towrds overexposure.
    2) More seriously and as you discovered when shooting in bright light,
    there is a distinct tendency to blow out bright objects, especially if
    they are surrounded by not so bright tones. Apart from the example
    mentioned in your review, I also noted it badly blowing out much of
    the image in the boat in IMG-0542 and in parts of the boat in the
    right background in IMG-0503. I have found the same thing. It takes
    a LOT of underexposre to bring back the detail; to the extent of
    rendering other portions ridiculousy dark. This issue may convince me
    to return it for another model. I have read that all the A series
    suffer somewhat from this problem but I don't know if they are all
    this extreme in that aspect. I had been looking at the A640. Perhaps
    it would be better.
    Have you done any more testing and come to any conclusions?
    commando1854, Oct 5, 2007
    #7
  8. On 2007-10-04 20:05:07 -0700, commando1854 <> said:

    > On Sep 27, 8:48 am, "Paul van Andel" <> wrote:
    >> Hi all,
    >>
    >> I bought the Canon A720, and since no reviews are out there I wrote my own
    >> :)http://www.cpr.demon.nl/canon/index.html
    >>
    >> Regards
    >> Paul

    >
    > Hi,
    > I just got one as well. It has many great features, almost allowing
    > DSLR flexibility in a small camera.
    > Two problems though.
    > 1) When shooting solid midtone objects at dusk (no real range-just
    > shots of grass in even light-did this as a test), they are
    > consistently overexposed. The histogram shows photos I know to be
    > overexposed as being in the middle, and correctly exposed ones as
    > being underexposed. I think the camera is set up biased somewhat
    > towrds overexposure.
    > 2) More seriously and as you discovered when shooting in bright light,
    > there is a distinct tendency to blow out bright objects, especially if
    > they are surrounded by not so bright tones. Apart from the example
    > mentioned in your review, I also noted it badly blowing out much of
    > the image in the boat in IMG-0542 and in parts of the boat in the
    > right background in IMG-0503. I have found the same thing. It takes
    > a LOT of underexposre to bring back the detail; to the extent of
    > rendering other portions ridiculousy dark. This issue may convince me
    > to return it for another model. I have read that all the A series
    > suffer somewhat from this problem but I don't know if they are all
    > this extreme in that aspect. I had been looking at the A640. Perhaps
    > it would be better.
    > Have you done any more testing and come to any conclusions?


    I wonder if the explanation for this is going to be complicated, or as
    simple as the effect seen in the earliest TTL light meters, where they
    consistently overexposed bright scenes and underexposed in dim
    lighting. I used to call it an "optimistic" meter, but then I'm not an
    engineer.
    --
    Cease then to grieve for your private afflictions, and address
    yourselves instead to the safety of the republic
    sheepdog 2007, Oct 5, 2007
    #8
  9. Paul van Andel

    Bill Tuthill Guest

    commando1854 <> wrote:
    > I just got one as well. It has many great features, almost allowing
    > DSLR flexibility in a small camera. Two problems though.
    > 1) When shooting solid midtone objects at dusk (no real range-just
    > shots of grass in even light-did this as a test), they are
    > consistently overexposed. The histogram shows photos I know to be
    > overexposed as being in the middle, and correctly exposed ones as
    > being underexposed. I think the camera is set up biased somewhat
    > towrds overexposure.
    > 2) More seriously and as you discovered when shooting in bright light,
    > there is a distinct tendency to blow out bright objects, especially if
    > they are surrounded by not so bright tones. Apart from the example
    > mentioned in your review, I also noted it badly blowing out much of
    > the image in the boat in IMG-0542 and in parts of the boat in the
    > right background in IMG-0503. I have found the same thing. It takes
    > a LOT of underexposre to bring back the detail; to the extent of
    > rendering other portions ridiculousy dark.


    So you're saying, "it is a digital camera."

    If you want cameras to perform up to your expectations above,
    go back to film.
    Bill Tuthill, Oct 5, 2007
    #9
  10. commando1854 <> wrote:
    > On Sep 27, 8:48 am, "Paul van Andel" <> wrote:
    >> Hi all,
    >>
    >> I bought the Canon A720, and since no reviews are out there I wrote my own
    >> :)http://www.cpr.demon.nl/canon/index.html
    >>
    >> Regards
    >> Paul


    > Hi,
    > I just got one as well. It has many great features, almost allowing
    > DSLR flexibility in a small camera.
    > Two problems though.
    > 1) When shooting solid midtone objects at dusk (no real range-just
    > shots of grass in even light-did this as a test), they are
    > consistently overexposed. The histogram shows photos I know to be
    > overexposed as being in the middle, and correctly exposed ones as
    > being underexposed. I think the camera is set up biased somewhat
    > towrds overexposure.
    > 2) More seriously and as you discovered when shooting in bright light,
    > there is a distinct tendency to blow out bright objects, especially if
    > they are surrounded by not so bright tones. Apart from the example
    > mentioned in your review, I also noted it badly blowing out much of
    > the image in the boat in IMG-0542 and in parts of the boat in the
    > right background in IMG-0503. I have found the same thing. It takes
    > a LOT of underexposre to bring back the detail; to the extent of
    > rendering other portions ridiculousy dark. This issue may convince me
    > to return it for another model. I have read that all the A series
    > suffer somewhat from this problem but I don't know if they are all
    > this extreme in that aspect. I had been looking at the A640. Perhaps
    > it would be better.
    > Have you done any more testing and come to any conclusions?


    Has it got RAW output as an option? If it has, you may find that the
    apparent overexposure problem is a feature of the internal RAW to jpeg
    conversion, and doesn't apply to the original RAW image.

    --
    Chris Malcolm DoD #205
    IPAB, Informatics, JCMB, King's Buildings, Edinburgh, EH9 3JZ, UK
    [http://www.dai.ed.ac.uk/homes/cam/]
    Chris Malcolm, Oct 12, 2007
    #10
  11. Paul van Andel

    Jim Nagy Guest

    In article <>, Chris Malcolm
    <> wrote:

    > commando1854 <> wrote:
    > > On Sep 27, 8:48 am, "Paul van Andel" <> wrote:
    > >> Hi all,
    > >>
    > >> I bought the Canon A720, and since no reviews are out there I wrote my own
    > >> :)http://www.cpr.demon.nl/canon/index.html
    > >>
    > >> Regards
    > >> Paul

    >
    > > Hi,
    > > I just got one as well. It has many great features, almost allowing
    > > DSLR flexibility in a small camera.
    > > Two problems though.
    > > 1) When shooting solid midtone objects at dusk (no real range-just
    > > shots of grass in even light-did this as a test), they are
    > > consistently overexposed. The histogram shows photos I know to be


    I have found that every one of my Canons treat green items as if they
    were black. They are consistently overexposed, as the camera tries to
    make them look grey. I routinely reduce exposure by about 1 stop if the
    scene contains a lot of green.

    --
    Jim Nagy
    Elm Electronics
    Jim Nagy, Oct 13, 2007
    #11
  12. Paul van Andel

    wraith Guest

    On Sep 27, 9:48 pm, "Paul van Andel" <> wrote:
    > Hi all,
    >
    > I bought the Canon A720, and since no reviews are out there I wrote my own
    > :)http://www.cpr.demon.nl/canon/index.html
    >
    > Regards
    > Paul


    Hi All
    Sorry if this is the wrong forum for this. Just got camera on Friday
    and I can't get the data & time to stay set. I have followed
    instructions and also replaced CR1220 battery. Date and time set but
    once camera is turned off then on again it is asking me to set date
    and time again. Help appreciated. Its taking photos ok and am having
    fun with the macro.
    wraith, Oct 14, 2007
    #12
  13. Paul van Andel

    ASAAR Guest

    On Sat, 13 Oct 2007 21:23:52 -0700, wraith wrote:

    > Sorry if this is the wrong forum for this. Just got camera on Friday
    > and I can't get the data & time to stay set. I have followed
    > instructions and also replaced CR1220 battery. Date and time set but
    > once camera is turned off then on again it is asking me to set date
    > and time again. Help appreciated. Its taking photos ok and am having
    > fun with the macro.


    You could test the voltage of the CR1220 batteries, but it's
    *very* unlikely that both the one installed in the camera and the
    replacement (new, right?) were bad. So either the camera is
    defective and should be returned immediately for another, or perhaps
    due to Canon's less than stellar quality control, the CR1220 was
    inserted backwards in the factory, and you followed their lead with
    the replacement. Whether putting the battery in backwards is easily
    possible or not, I'd guess that the most likely scenario is that the
    camera is defective, unless . . . set the date/time once more, take
    a picture, and without turning off the camera, check the date/time
    either by setting it or by examining the photo's date/time on the
    computer. It's in the photo's EXIF data. This is just to check for
    the possibility that after setting the time, you exited the menu
    improperly, canceling the time-setting operation.
    ASAAR, Oct 14, 2007
    #13
  14. Paul van Andel

    Bill Tuthill Guest

    Jim Nagy <> wrote:
    >
    > I have found that every one of my Canons treat green items as if they
    > were black. They are consistently overexposed, as the camera tries to
    > make them look grey. I routinely reduce exposure by about 1 stop if the
    > scene contains a lot of green.


    Yes, I've seen this even in a Canon DSLR, the Rebel aka 350D.
    It appears that red-brown rock walls (as in the Grand Canyon)
    are also overexposed.

    Some Nikon high-end models have color-sensitive autoexposure,
    but I don't know the details.
    Bill Tuthill, Oct 16, 2007
    #14
  15. Paul van Andel

    H.S. Guest

    Jim Nagy wrote:
    > In article <>, Chris Malcolm
    > <> wrote:
    >
    >> commando1854 <> wrote:
    >>> On Sep 27, 8:48 am, "Paul van Andel" <> wrote:
    >>>> Hi all,
    >>>>
    >>>> I bought the Canon A720, and since no reviews are out there I wrote my own
    >>>> :)http://www.cpr.demon.nl/canon/index.html
    >>>>
    >>>> Regards
    >>>> Paul
    >>> Hi,
    >>> I just got one as well. It has many great features, almost allowing
    >>> DSLR flexibility in a small camera.
    >>> Two problems though.
    >>> 1) When shooting solid midtone objects at dusk (no real range-just
    >>> shots of grass in even light-did this as a test), they are
    >>> consistently overexposed. The histogram shows photos I know to be

    >
    > I have found that every one of my Canons treat green items as if they
    > were black. They are consistently overexposed, as the camera tries to
    > make them look grey. I routinely reduce exposure by about 1 stop if the
    > scene contains a lot of green.
    >


    I read the original post a few days ago and took some outdoor pictures
    with my Canon A520 -- mostly under overcast conditions. Looks like I
    have to agree with this observation -- the pictures I took at 2/3 or 1
    stop under appear to be better than with no compensation. And a few of
    the pictures were of a gray stone building! The conclusion is
    non-scientific of course, but it definitely is going to make me remember
    this point.

    ->HS
    H.S., Oct 16, 2007
    #15
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