The reason why it works is because with the K-mount, the lens is normally
stopped down. You can confirm this by looking through any lens while it is
off the camera. The camera has a lever that holds the lens open when it is
mounted on the camera. What you do by twisting the lens is disengaging
this lever so the lens stops down, so the light meter will then be reading
the light coming through at the aperture that the photo will be taken at.
This is also a way to get DOF preview on any K-mount body that does not
have DOF preview bulit in, like the K1000 or the MZ-5o. This is risky
business however, since you need one hand to hold the lens, another to hold
the
body, and another to turn on the light meter, so don't drop anything!
BTW I'm not in the UK, but the in US. It's only 9:32 here, not that late...
Hope this helps!
Todd
At 12:15 PM 3/26/01 +1000, you wrote:
>Todd, I am not sure that I am game to try your suggestion...I'll have to
>think some more on that one, I don't understand enough technically to know
>why that would work, however, I'll take your word for it. Thanks also for
>taking the time to try to help this damsel in distress.
>
>Peter, I see that you understand my confusion here, especially being a past
>owner of the exact same lens.
>
>Even if we don't solve the mystery of making it work on the MZ-50, I guess
>we have at least learnt the possible menaing of the "A" in PKA, thanks to
>Todd!
>
>Now please go to bed and sleeeeeeep, I'd hate to be the cause of your brain
>exploding due to exhaustion! hehe.
>
>Thanks for your help, I dare say that I will look for your further responses
>tonight (Monday) which will then be your Monday morning and you should be
>refreshed and ready for me to pick that brain of yours once again! ;-D
>
>PS Where in the UK are you located?
>
>Tanya.
>
>
>
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