Mamiya C series TLR - viewfinder coverage.

[Neil Grant]

...it's typical for a reflex viewfinder to show 'less' than is recorded on film. In 35mm format, I think only Nikon claimed 100 percent coverage for their F, F2 and F3. Anyone have experience of how much 'less' the TLR viewfinder shows?

 

[grat]

According to the TLR pages at http://grahamp.dotinthelandscape.org/mfaq.html

6.4 Finders
Coverage Measurements of the screen apertures on a C330 and C220 give a value of 51mm (to the nearest millimetre), while the image area is 56mm. 51/56 gives a finder coverage of 91%. This is partly to allow for the fractional variations in the positioning of the lenses when they are changed.

 

[Neil Grant]

The 'famous' Mamiya TLR site has it all! Thanks for remembering. I guessed the TLR viewfinder has a rather large 'safety' margin - 91% is quite low. I took a photo recently at close distance using the 55mm
and the paramender, except i forgot to 'crank-up' after framing. The framing was still OK though.