I'm currently using a Pentax K-1 with the following lenses :

 

SMC Pentax-A 28mm f2.8

 

DA limited macro 35mm f2.8

 

SMC Pentax-A 50mm f1.7

 

SMC Pentax-F 35-70 f3.5-4.5

 

SMC Pentax-A 70-210mm f4

 

Takumar 135mm f2.5

 

Tamron 70-200mm f2.8

 

Pentax HD Pentax-D FA 24-70mm f2.8

 

And previously owned :

 

Pentax K-5

 

Sigma 18-50mm f2.8