Second hand Wallace 52mm Expo/Disk Exposure meters for sale
Used The Wallace Expo/Disk slots onto the front of a 52mm filter thread lens or holds in place to provide a scrambled exposure reading like you would achieve using an incident meter.
It can also be used to pre-expose film on cameras with double exposure option.
Condition:
good with original storage wallet and instruction sheet The photograph above is the actual pre-owned Wallace 52mm Expo/Disk on offer for sale.