Re: 135/2.5 Pentax or Takumar - what's the difference?

[Boris Liberman]

Hi!

Sylwek, I've been getting similar impression from my instance of the 
same class <grin>. It might be that due to the fact that this is a 
consumer grade lens, the difference between different samples is 
significant.

In my opinion Tak 135/2.5 is way better, than Sigma 28-135/3.8-5.6 at 
135/5.6. Also, even wide open, I've been getting decent pictures. 
There is one thing, without disrespect, that seems to be very 
important. Since this lens has very shallow DOF (135 mm focal length, 
you know) the quality of focus becomes extremely important. So even a 
minor mistake can lead to image softness.

On the positive side, this lens is light, fast and built like tank. 
Add to that a dirt cheap price, and you obtain excellent value for 
money.

But of course there's always a bigger fish... er... lens...

Boris