Minolta Auto Meter calibration

Discussion in 'Minolta' started by sgfan3, Feb 14, 2004.

  1. sgfan3

    sgfan3 Guest

    Hi All. I have a Minolta AutoMeter IV f that is reading about 8 stops under.
    I suspect there is an adjustment somewhere in the meter but can't see on
    except for the adjuster in the battery compartment. This will adjust but not
    nearly enough. Any tips or advice? TIA
     
    sgfan3, Feb 14, 2004
    #1
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  2. sgfan3

    Alan Browne Guest

    The IVF can be adjusted by -2/3 to +2/3 of a stop. With an 8 stop
    error, there is something seriously wrong with the meter, or you are not
    testing it correctly.

    How do you know it is reading 8 stops under?
    Is the ISO correct? Is the battery fresh? Take the dome off, is there
    any dirt in there?

    Point the dome at the sun on a cloudless day:
    For ISO 100 it should read a sunny 16 reciprocal such as 1/100 f/16, or
    1/200 f/11, etc. (A good half stop of tolerance here).

    Take a midtone object reading with a camera (a grey card would be nice).
    Then meter the same light. (eg: point the dome at the lens from the
    same subject under the same light). You should get within a stop.

    Point your camera at the palm of your hand, meter with the camera.
    Open up 1 stop. You should get a similar reading with the hand held meter.

    Cheers,
    Alan.
     
    Alan Browne, Feb 14, 2004
    #2
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  3. sgfan3

    Alan Browne Guest

    BTW: There is a downloadable pdf manual for the IVF at the US Minolta site.
     
    Alan Browne, Feb 14, 2004
    #3
  4. sgfan3

    Fred 2 Guest

    I used to work at Minolta's west coast service before they shut it
    down. The calibration pots are under the square sticker on the back of
    the meter. However, I wouldn't touch them if I were you, need a
    calibrated light box, etc. to properly calibrate the meter.

    As the other poster mentioned 8 stops off is a big amount and if true
    is not a common problem, how do you know it's 8 stops off. 3 stops off
    is more common with this meter and in most cases is an easy fix.
     
    Fred 2, Feb 15, 2004
    #4
  5. sgfan3

    sgfan3 Guest

    Turns out there was a pile of dust on the "lens". Cleaned it off and all is
    well. Thanks everyone.
     
    sgfan3, Feb 16, 2004
    #5
  6. Alan, on seeing your post I just tried visiting the site to look for
    manuals, but found it one of those really irritating sites designed by a
    PR robot who assumes everyone wants to know what a slick company it is
    without actually helping you to find anything (I'm sure Gilbert &
    Sullivan would have found a suitable punishment to fit that crime!).

    Do you happen to have a URL for the page with the instructions?

    I just bought a Booster II to go with my Flashmeter V - but the
    instructions are quite old and only have details of the calibration
    steps for older meters; was just hoping that there might be an updated
    version there to help me.

    PS my spell checker wanted to change "Gilbert" to "Giblet" and
    "Sullivan" to "Sultan". Who said computer geeks are uncultured?
     
    David Littlewood, Feb 16, 2004
    #6
  7. sgfan3

    Alan Browne Guest

    David Littlewood wrote:

    I started at http://konicaminolta.com/ and then folowed the "Americas"
    then "USA" and then the "PHOTOS" link ( http://konicaminolta.us ) w/o
    any problem...
    From there cam/acces ... etc. Not all of the meters presented have
    online manuals...

    http://www.minoltausa.com/eprise/ma...ucts?NS=true&cname=exp&fname=&Mname=&mDetail=
    might work too.
    IAC it seems you're smart enough to calibrate w/o need for a manual?
    Grey card it!
    There are some wonderful poems/ditties on the web regarding the "gift"
    of spell checkers in the hands of the spelling challenged. (As an
    11-year old, I was known for flawless 'college level' spelling. Then I
    went to a French High School ... now I can't spell correctly in either
    official language...)

    No I did not use a SC on this post!

    Cheers,
    Alan.
     
    Alan Browne, Feb 16, 2004
    #7
  8. Thanks Alan.
    Just being lazy - each meter has different buttons to press/modes to be
    in when calibrating the booster, and I was trying to avoid figuring it
    out by trial and error!
    My spelling is good but my typing is ham-fisted; in my case using a
    spell-check is fairly obligatory to catch all the missed/extra letters,
    reversed letters etc. What I can't abide are grammar checkers such as
    the one in Word - it seems to want to push you down to the reading level
    of a 12-year old.
     
    David Littlewood, Feb 16, 2004
    #8
  9. sgfan3

    Alan Browne Guest

    You're quite welcome.
    But that is a good thing. It increases your audience! Actually the
    greatest 'sensitivity' of grammar checkers is not polysylabic words, but
    long sentences, inconsistent tense and multiple negations. Then the
    richest vocabulary will be considered "high school" level and "readable"
    by the majority...
     
    Alan Browne, Feb 16, 2004
    #9
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