[ATM] A challenging 28" project

[Dominic-Luc Webb]

On Fri, 3 Aug 2007, Richard wrote:

> Hi Dominic-Luc,
>
> It's not the power that matters, it's the numerical aperture, although
> I admit they do tend to go hand in hand.


Agreed. The two I tried I just checked in my lab were Zeiss 40/0.75 and
10/0.30. The high power was 100/1.3 was totally anappropriate, while
the 4X (not sure about NA) did not cover my mirror (310 mm F/1.55).

Dominic