Pentax DS Operation Manual - Page 117

115 Setting the Sensitivity You can set the sensitivity to suit the brightness of the surroundings. The sensitivity can be set within a sensitivity range equivalent to ISO 200 to 3200. The default setting is [200]. Set [Sensitivity] in the Fn menu. (p.102) Sensitivity 200 400 800 1600 3200 OK OK Captured images can show more noise if higher Sensitivity is set. 5 Function Reference Correcting the Sensitivity Automatically You can increase or lower the sensitivity if the subject is too light or dark, or if the aperture value in relation to the shutter speed or shutter speed in relation to the aperture value is not correct. Sensitivity is not corrected by default. 1 Off Sensitivity is not corrected. 2 ISO 1600 Sensitivity is corrected within a range of 1600. 3 ISO 3200 Sensitivity is corrected within a range of 3200. Set in [Senstvty Corction] in the [A Custom] menu. (p.100) Senstvty Corction Off ISO 1600 ISO 3200 Sensitivity is not automatically corrected