P67 Shutter Accuracy

From time to time, I recheck the shutter accuracy on my cameras.

I've been surprised at the consistent, proper behavior on most of

them. I recently tested my P67 bodies and continue to be pleased at

the accurate performance. I enter the digital measurement directly

into a simple spreadsheet on a 3 run sequence, slowest to fastest,

fastest to slowest and a return through slowest to fastest. The

spreadsheet then calculates the f stop deviation of the average for

each shutter speed and also measures the level of deviation (hi/lo)

percentage within each shutter speed. I've got both measurements

overlaid on one graph for my own quick snapshot that would likely be

better separated for sharing, but I thought that other P67 owners

would be curious about my results.

This chart is from my oldest, most used body and my second body was

very similar. The left Y axis is the f stop deviation of the average

at that shutter speed and the right Y axis is the percent of

erratic/deviation behavior of the 3 shot test at each shutter speed.

http://www.chibardun.net/~craigclu/shuttchart.jpg