Hello, Can anyone help me to decide if I would benefit from a correction lens in my 6x7 eyepiece? (It's a 6x7 MLU with plain prism).
On my LX I have the FA-1 set to mid-range, so assuming a linear scale that's about -0.75 diopters. This is the viewing experience that I would like to duplicate on the 6x7. The 6x7, bought used, came with what seems to be a piece of flat glass in the eyepiece. Is this the standard eyepiece that gives the overall -1D listed in the manual? Can I compare the -0.75D value from the LX with the -1D of the 6x7? Or, should I read the LX setting as "some built in value" minus a further 0.75? If my two viewfinders are -0.75 and -1.0, then the difference is only 0.25. That doesn't seem much. Should I expect to feel that the 6x7 needs correction if it is only out by that far? Or, is the overall diopter of the LX something larger, say -1.75D? In that case I might expect a -1D correction to get me closer than I am at present. Is it worth guessing at an appropriate correction, or do I need to take my camera to the optician and actually try some lenses? Thanks in advance for any suggestions. Steve.
