What is the best Pentax DSLR for low light?

[GlenVision]

I'm interested in knowing which Pentax DSLR has the lowest noise at high ISO settings?

Also, which Pentax gives the best results at low ISO's and very long exposures?

 

[Derrel]

DxO Mark.com might be a good place to start. Go down the list, and find the highest-ranked Pentax.

 

[Unruely]

I have 5 Pentax bodies, the KX, K7, K20D, K01, and the K5ii. The best is the K5ii, K01, KX, K7, K20d in that order. For low ISO and long exposures the K5ii and K7 are the best of the 5 I have.

 

[skid2964]

I think the K-5IIs/K-5II definitely have the best High ISO performance.