Asahi pentax camera sp 500 operating manual instruction. Available to purchase for immediate download. Below is an extract from the manual converted to text for a quick impression on the content. Asahi pentax camera sp 500 operating manual instructionASAHI PENTAX DIGITAL SPOTMETER ASA lndex ASA Scale ASA/Shutter Speed Dial Shutter Speed Scale Aperture Scale Aperture/EV No. Dial EV No. Scale IRE Scale IRE Standard Index