Rangefinder values how are they determined?

[chuckfourth]

Hi Nox
Yes thats right at the very least I have identified an incorrect Nashorn rangefinder value.

When you say Scherenfernrohr are just pretty binoculars you mean Scherenfernrohr have twice the magnification as regular binoculars. This is important because it means they will be able to estimate the size of objects twice as far away as regular (7x) binoculars, ie at a distance when estimation of range becomes important. There is obviously no point estimating the range of anything under 800-1000 metres away. 800-1000 metres may be about the maximun you can reliably estimate range at with 7x binoculars anyway, if this is the case then binoculars are unsuitable for "rangefinding". Certainly not as good, actually probably less than half as good as Scherenfernrohr.
Obviously a main gunsights magnification (5x or 2x, etc) is too low to be very useful to estimate range also. So it doesnt matter if they have 5 mil graduations. ie Fabio is correct. I was quite impressed by Fabio Prado's website, sorry to hear you think he's writing rubbish.

Heres some info on sherman and tiger gunsights, seems the tigers gunner has a better field of view than the sherman gunners. Not sure why you think its the other way around?

Shermans,
M.38
1.44x magnification / 9° Field of View
or
M.70 F
3x magnification / 12° Field of View
or
M.71 D
5x magnification / 13° Field of View

Tiger 1
TZF 9c
2.5x magnification / 25° Field of View
and
5x magnification / 14° Field of View

But Nox, you know so much about sights, maybe you have some information to the contrary?

Best Regards Chuck.