Re: Koehler illumination in conoscopic observation

On Nov 28, 2:06 pm, "NoSpam" <NoS...@xxxxxxxxxxxxxxxx> wrote:
Dear Kevin,

I forgot to raise a point: Is opal glass or ground glass the
choice for a diffuser?

TIA
GR.

It depends on how much diffusion and for what purpose. In this case
ground glass would be better. This is one of those "Don't get me
started" kinda things. If you want the next couple of hours filled up
with discussion of who, what and how many I can do it, if you want to
make your Nikon work, ground glass.

Thanks,

Kevin Cunningham
SMS
.