I've got the second lens to focus correctly (using the ebay adapter).. now the lens can focus on a far object, then a little past it, so i have achieved infinity focus.
It now takes crystal clear pictures!
I've attached photos how to disassemble the lens.
Basically the
rear lens is stationary and is placed at a set distance inside the camera body and does not move, the upper lens moves up and down, the closer the top lens moves to the rear fixed lens the more infinity focus you achieve.
You open the lens up (I used a socket with tape for friction),
undo the 3 screws,
take off the filter ring
, loosen the 3 focus ring screws,
rotate the focus ring to the 0.45 mark,
tighten one screw,
rotate the focus ring towards the infinity mark,
the lens will sink as deep as it can go
once the lens moves as far as it can go in, stop,
loosen the screw again,
set the focus ring on the infinity mark,
and tighten the 3 screws.
Your lens is now sunk in the barrel as deep as it can possibly go, and that is the most infinity focus your lens can achieve. One other thing you can do is try and screw the lens deeper in, unless it is already maxed out. You can also take out the main lens and clean behind it.
Hold the lens
Use 2 flat blade screw drivers in little tiny cut outs in the ring
screw counterclockwise to unscrew (For cleaning)
screw clockwise to screw in (for checking its as deep as it will go, or reassembly)
You have now cleaned the lens and set maximum infinity possible on your lens.
Reassemble in the opposite order.
Why this lens managed to focus and not the last one???
My theory: Takumar made 3 versions of this lens, first being able to reach f22, latter 2 reaching f16, the previous lens I had was a f22 lens and its rear lens protruded beyond the body further then this f16 version, and if you have read in my earlier post that when I unscrewed the rear lens by grasping it with pliers, and it brought the rear lens DEEPER into the body, the infinity focus worsened (Meaning it had to sit LESS DEEP to achieve infinity focus but unable to do due to lens design). You can see from the last picture that the rear lens of this f16 is sitting more flush with the body) Anyyway, that is my logical conclusion why the f16 is able to infinity focus on my K5 and the f22 was not.
Thanks to all for the input.