Pentax ES II ES II Manual - Page 30

IMPORTANT NOTES 1 Always keep the stop-down lever down for open-aperture reading. Also, be sure to keep it down when interchanging lenses; otherwise, the automatic diaphragm pin of the lens will hit the diaphragm activating lever in the body. Move it up only when checking the depth of field or using stop-down metering lenses or Extension Tubes, Bellows Unit, etc. inserted. between the lens and the camera body. 2 If you set the shutter dial of the ES II at "AUTOMATIC" and release the shutter, the reflex mirror will be locked up for safety, if 1) the lens cap is on. 2) the lens is removed from the body. 3) the stop-down lever is down, when using stop-down metering lenses or close-up accessories. To bring the reflex mirror down, just turn the shutter dial off the "AUTOMATIC" setting, or move up the stop-down lever. ESE P E N TAX 28