Pra quem esta´com a câmera desde o começo, acho que até dá pra ir percebendo como a Olympus joga com os números. Como não é o meu caso, eu achei esse tutorial (através do qual descobri que minha câmera está com 12817 disparos):
1-Hold the MENU button and power on the camera.
2-Press MENU and go to MONITOR BRIGHTNESS ADJUSTMENT (under the wrench icon, looks like a little screen with warmth and brightness adjustments next to it.)
3-Once there, press INFO + OK at the same time. You should see OLYMPUS show up.
4-Press the following buttons in order: UP, DOWN, LEFT, RIGHT, SHUTTER, UP.
5-You should now have infinite lives.
6-You are now in Engineering Mode, which displays 4 pages.
7-On page number 2 you will find the R number, which represents Shutter Release.
There you have it. The other numbers stand for: S – Flash Use, U – Sensor Ultrasonic Dusting, V – Live view, B – Shots using In-Body stabilization. I don’t know which other cameras this works on, but it does the trick on the E-P1 so I assume the other PENS should also work ok.
Fonte:
http://victordima.ca/how-to-check-the-shutter-count-on-the-olympus-pen/