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m645 auto-exposure on the blink



 
 
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  #1  
Old January 24th 08, 07:01 AM posted to rec.photo.equipment.medium-format
scenic_man[_2_]
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Posts: 16
Default m645 auto-exposure on the blink

I have a Mamiya m645.
This is the old one, before they came up with the swoopy viewfinder.
(model "J"?)

I got it 2nd hand last June, and it worked quite well
(except that the thing that automatically resets the frame number
when I finish the roll doesn't work).
I used it off and on through the summer and fall.

Then a couple weeks ago, I went to use it,
and the LEDs of the "exposure assist" (match the "needles") didn't light up.
I couldn't think of any good reason why the battery would have run down,
although there probably is such a scenario.

Anyway, I bought a new battery, and tonight I put it in.
Still no LEDs!
And, more specifically, pushing the little "lamp-test" button on the
right-hand side does not light up the little "battery-OK" LED
on the left-hand side.

Any ideas on what might have gone wrong,
or what state it's in now?
  #2  
Old January 24th 08, 08:49 PM posted to rec.photo.equipment.medium-format
Rob Bradford
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Posts: 23
Default m645 auto-exposure on the blink

Des the batt check light up with the finder removed from the body? If not
then it could be a duff battery, if it does clean the contacts refit the
finder and see what happens.

You have nothing to loose.

--
(\__/) This is Bunny.
(='.'=) Help him and his friends by supporting the
(")_(") Rabbit Welfare Association: www.houserabbit.co.uk


"scenic_man" wrote in message
news:zQVlj.15370$%p6.1295@trndny06...
I have a Mamiya m645.
This is the old one, before they came up with the swoopy viewfinder.
(model "J"?)

I got it 2nd hand last June, and it worked quite well
(except that the thing that automatically resets the frame number
when I finish the roll doesn't work).
I used it off and on through the summer and fall.

Then a couple weeks ago, I went to use it,
and the LEDs of the "exposure assist" (match the "needles") didn't light
up.
I couldn't think of any good reason why the battery would have run down,
although there probably is such a scenario.

Anyway, I bought a new battery, and tonight I put it in.
Still no LEDs!
And, more specifically, pushing the little "lamp-test" button on the
right-hand side does not light up the little "battery-OK" LED
on the left-hand side.

Any ideas on what might have gone wrong,
or what state it's in now?



  #3  
Old January 25th 08, 04:04 PM posted to rec.photo.equipment.medium-format
scenic_man[_2_]
external usenet poster
 
Posts: 16
Default m645 auto-exposure on the blink

Rob Bradford wrote:
Des the batt check light up with the finder removed from the body? If not
then it could be a duff battery, if it does clean the contacts refit the
finder and see what happens.

You have nothing to loose.


It appears that I had forgotten how to work the internal light meter system.
I was trying to adjust the shutter speed with the right-hand knob,
the one that's attached to the view finder,
without first having set the left-hand, on-camera knob to "Bulb".
Did that, works fine now.

Not sure *what* to make of the green lamp-test LED not coming on ...
works fine now too, both before and after following Rob's advice above.
  #4  
Old January 26th 08, 11:19 AM posted to rec.photo.equipment.medium-format
Rob Bradford
external usenet poster
 
Posts: 23
Default m645 auto-exposure on the blink

Been there done that, in fact I'm about to dig mine out, I have't used it
much since getting a later model (645 Pro).

--
(\__/) This is Bunny.
(='.'=) Help him and his friends by supporting the
(")_(") Rabbit Welfare Association: www.houserabbit.co.uk


"scenic_man" wrote in message
news:1Ummj.1$w66.0@trndny06...
Rob Bradford wrote:
Des the batt check light up with the finder removed from the body? If not
then it could be a duff battery, if it does clean the contacts refit the
finder and see what happens.

You have nothing to loose.


It appears that I had forgotten how to work the internal light meter
system.
I was trying to adjust the shutter speed with the right-hand knob,
the one that's attached to the view finder,
without first having set the left-hand, on-camera knob to "Bulb".
Did that, works fine now.

Not sure *what* to make of the green lamp-test LED not coming on ...
works fine now too, both before and after following Rob's advice above.



 




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