[EMAIL PROTECTED] wrote: > > David, > To clarify, you tried the experiment below. You mounted a K or M lens > and checked metering without and with Spot? You got significantly different > reading using Spot? Can you tell us what lens you used? > My PZ-1 has never worked this way since purchased new. I was an early > purchaser, but many others have noted this discrepancy before. Mark Roberts > and others have web pages devoted to modifying M & K lenses to allow spot and > matrix metering. > Regards, Bob S. > > > Try it in a dim room with a table lamp and a wide angle K or M lens. > > The "SPOT" metering area is about the same size as the [ focus ] area of > the > > PZ-1. Put the lamp in the focus area and meter - center weighted. Turn > on > > spot metering and do the same. You will find identical readings. Now > > try it with an A, F, or FA lens. You will get different readings.
I used extension tube #2 from Auto extension set K mounted between the PZ1-P body and the FA 28-70 zoom. The extension tube is a K version tube with no electrical contacts. This isolates the electrical contacts of the lens from the body and makes any version K mount lens attached to it behave like a K lens. I tried the test again, spot metering definitely works. The bare light covers area just larger than the autofocus rectangle. I have the body set to shutter priority. For spot setting the exposure time is 1/350 when centered on the bulb & goes to 1/30 when the outer edge of the autofocus just touches the outer edge of the light. At the matrix setting (which defaults to center weighted metering lenses without electrical contacts like this combination) the exposure times are 1/90 when centered on the bulb & goes to 1/30 when the outer edge of the autofocus just touches the outer edge of the light. -- David S. Nature and wildlife photography http://www.sheppardphotos.com
