Andre, I removed the 'mount tube' from my Takumar 500/4.5 (bayonet), and measured it to be approximately 4.45 cm. I don't own the 100/8, but if anyone is willing to send me one, I'd be GLAD to measure its 'mount tube'.
IL Bill, master of metrics! andre wrote: > Is the mount part (a few inches long) of the Takumar 4.5 or Pentax > 500/4.5 still available? > > Is it the same as the "mount tube" found on the Takumar (or Pentax) > 1000/8? > > > Andre

