Okay, I understand what you mean now. Actually the real problem of this lens
is the angle of rotation during focusing, it took over 90 degrees to focus
from 1.5m to infinity, while the 35/2 is less than 20 degrees for the same
distance. It is a bit difficult for ground glass focusing, but for split
image focusing it should be okay.
C.H.Ling
----- Original Message -----
From: "Globtroter" <zbturon@xxxxxxxxxxxxx>
> Hi, again!
> Your test below is completely correct,
> I agree,
> but it is not the case I meant.
>
> Please simply follow that:
> 1. take the lens and put it on
> a camera,
> 2. open it fully and direct it on the plain wall
> (you are looking through 3,5 hole),
> 3. close the diaphragm one stop - THEN
> the viewfinder comes dimmer (you are looking
> through 4,5 hole),
> 4. close the diaphragm next stop - THEN
> the viewfinder stays dimm like it has been so far
> (you are still looking through 4,5 hole),
>
> It means that the lens is difficult for focussing
> because the diaphragm closes from 3,5 to 4,5
> immediately at the moment when you are turning
> the diaphragm ring from 3,5 THAT's the real disadvantage
> at the manual cameras.
>
> Regards,
> Zbigniew
> Poland
>
>
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