"Jim Beam" wrote in message
...

I think 0.8mm exit pupil was on the table, which holds to the 31x per inch
rule. Beyond that, you are just making the image larger, which has the
double edged sword effect of also making the image dimmer (as you
suggested). So the questions are, and this is subjective, at what exit
pupil
are images too dim for you, and at what exit pupil do your floaters (if
any)
become a serious bother? These values will hold in any scope. You then
simply scale up the aperture, to increase image scale.

Stephen Paul


Hi Stephen, thanks for your response. I don't understand. You mention
0.8mm as if it has almost the authority of a speed limit. Is there a
reason
why 0.8mm would be the point where you go from seeing more detail to
just making things bigger? Does it have to do with 0.8mm making the
Airy disc visible to the eye?

I'm not ignoring this post by the way. I just don't have an answer that I
like.