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Thread: Pentax V, three cell meter light adjustment or replacement.

  1. #1

    Join Date
    Sep 2007
    Location
    Charlotte, NC
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    161

    Pentax V, three cell meter light adjustment or replacement.

    I've discussed replacing the bulb in my Pentax spot before but I'd like to see if there is any advices from this forum on the topic.

    My bulb is way too dark and I need brighter to use it in dim light.

    Any additional information is sought and welcomed.

    Eli

  2. #2

    Re: Pentax V, three cell meter light adjustment or replacement.

    Pentax stopped supplying parts for this meter in 2007

  3. #3

    Join Date
    Aug 2004
    Location
    NYC
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    583

    Re: Pentax V, three cell meter light adjustment or replacement.

    i have that meter and was thinking of replacing the bulb with a tiny led. of course i didnt because its a major surgery, and i hardly ever use it. another consideration may be the brighter light may cause interfearance with readings.

    id be curious to know how your project turns out.

  4. #4

    Join Date
    Jan 2006
    Location
    Memphis, TN
    Posts
    348

    Re: Pentax V, three cell meter light adjustment or replacement.

    I bought my meter sometime in the early 80s and the low lite bulb has always been dim.
    Ron McElroy
    Memphis

  5. #5

    Join Date
    Sep 2007
    Location
    Charlotte, NC
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    161

    Re: Pentax V, three cell meter light adjustment or replacement.

    You'd think Pentax would have used a bulb as bright as the average firefly, at the least.

    Tiny Model Railroad bulbs are one option, but I'd be careful of trying this last, positive action ), should it work, but a too dim spotmeter is no use in many natural low light situations for me.

    That's the one advantage of a Minolta M or F spotmeter, you can read the darn thing in heavy shade or darkness!

  6. #6

    Join Date
    Dec 2009
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    Pacifica, CA
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    1,700

    Re: Pentax V, three cell meter light adjustment or replacement.

    I've joined the discussion from time to time... There are lots of complaints about the light, I know.

    Be sure to judge the bulb in light levels so low that the spot you are reading has a scale value of 1, 2, 3 or so.

    And make sure your eyes are adjusted to that low level of ambient light.

    Too often I have tried to check it on a sunny day outside, and can't see it.

    It's really only illuminating that low end of the scale, and with such a dim level that you only see it when you need to.

    So it's not bright enough, say when you are reading a 7, and the number itself is in a dark background area of the scene.

    But when you are in full darkness and a dim area is all you have to read, and you spot on that brightest thing but it's still reading about 3... Then the glow will reveal you are not on 0

  7. #7

    Join Date
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    Charlotte, NC
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    Re: Pentax V, three cell meter light adjustment or replacement.

    Will a 'brighter' bulb compromise the external reading?
    Last edited by eli; 14-Jan-2022 at 02:33.

  8. #8

    Join Date
    Dec 2009
    Location
    Pacifica, CA
    Posts
    1,700

    Re: Pentax V, three cell meter light adjustment or replacement.

    I don't know if a brighter bulb would hurt!

  9. #9

    Re: Pentax V, three cell meter light adjustment or replacement.

    Quote Originally Posted by eli View Post
    Will a 'brighter' bulb commpermise Will a brighter bulb commpermise the external reading?
    Yes it will .

  10. #10

    Join Date
    Sep 2007
    Location
    Charlotte, NC
    Posts
    161

    Re: Pentax V, three cell meter light adjustment or replacement.

    Cheers.

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