Metering fields in ZI's viewfinder
The Leica M instruction manual gives some hints on the metering fields in the M's viewfinder:
The metering field covers approx. 23 % of the viewfinder image for the lens being used. However, the following reference value applies to all lens focal lengths: The diameter of the circular metering field is approx. 2/3 of the short side of the applicable bright-line frame.
The ZI‘s instruction manual says only that the metering sensitivity is highest in the center of the frame. Is there a similar rule of thumb as with the Leica?
ZeissIkon ZI body, ZM 1.5/50, ZM 2.8/28, ZM 2.0/35, ZM 2.0/85 NIKON FM2, F3HP, Nikkor 24mm, 50mm, 35-105mm, 200mm macro Rollei 35T (my first "real" camera)