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F effect
There is a related spin off to F ratio, and it has to do with go-to mounts and field size for eyepiece mm.
With a high f value, , it is much less likely that the requested go-to star will be in the field of view (Unless you have access to a VERY low magnification wide-angle eye piece).
for example, I have an f14 Mak. my wife has a f4.7 Newt. and both my EQ5pro go-to and her Argo Navis Push-to are much nicer to use with the F 4.7 because you don't have to chase a go-to object that is just out of view.
...and this is even when I use a 40mm 72degree EP with the mak.
Rider2
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