Re: Lubi Hell

[Greg Erker <erker@xxxxxxxxxxxxxx>]

>Yup, I seem to have botched things when I disassembled the lenses.  In his
>note, he calls this a "tough problem".  If John thinks it's tough, then I'm
>cooked.
>
>John Bercovitz said:
>
>>Oooh, tough problem, Tom.  I don't envy you.  I think
>>what may be going on could be that the Lubitel uses
>>triplets like the Sputnik does.  If that is the case, they
>>are front-cell focussers.  This gives them two degrees of
>>freedom which is one more than I would wish on anyone.
>>One degree of freedom is where the back of the lens is
>>relative to the case and the other is where the front cell
>>is relative to the rear cell.

  Did you do anything that would change where the
lens/shutter assembly is relative to the film plane?

  If not you are back to just getting the front
element set to the right point to give calibrated
focus.

  Another possible problem is that you flipped
a lens element around and now one lens is different
than the other.

Greg