Thank you Gijs.
The re-graphings with axes used for new parameters are difficult to track!
It seems that it is most useful to focus on the relationship indicated in the final result, that is, your graph copied at post #101.
But, as David says, there are several other parameters essential to consider. They need to be included to make it relevant to most users of binoculars.
Also, and perhaps this was done, each resolution test should be across several minutes and the results noted at the ends of such periods, to simulate actual use in nature watching or pretty much any other purpose for which a binocular is hand held. Even in youthful subjects steadiness will then deteriorate. The first few seconds after the instrument is brought up to the eyes are of limited use.
The re-graphings with axes used for new parameters are difficult to track!
It seems that it is most useful to focus on the relationship indicated in the final result, that is, your graph copied at post #101.
But, as David says, there are several other parameters essential to consider. They need to be included to make it relevant to most users of binoculars.
Also, and perhaps this was done, each resolution test should be across several minutes and the results noted at the ends of such periods, to simulate actual use in nature watching or pretty much any other purpose for which a binocular is hand held. Even in youthful subjects steadiness will then deteriorate. The first few seconds after the instrument is brought up to the eyes are of limited use.