Ikophot Exposure Meter – Made by Zeiss Ikon
Most of the TLRs do not come with built-in meter.
For TLRs come with built-in meter, most of these may not fully functional due the its age, or some functional but may not be accurate.
In these cases, a good exposure is very useful.
Managed to got a e-copy of Zeiss Ikon Ikophot exposure meter instructional manual, free download here.
TLRgraphy 