D BG4 Battery Grip for Pentax K 5 II, K 5 IIS, K 5, K5, K 7, K7, K5IIS and K7D SLR Camera, D LI90, DLI90.|battery grip|battery grip for pentaxpentax battery grip - AliExpress
Pentax K-5 IIs : Specifications and Opinions | JuzaPhoto
File:Pentax K5 IIs with DA* 50-135mm (18898661280).jpg - Wikimedia Commons