Re: [MF 3D] MF viewer lighting

[Tom Hubin <thubin@xxxxxxxxx>]

Greg Erker wrote:
> 
>      Your 'total light' argument holds only in a system with
>      condensers and field lenses, but not when a diffuser is in
>      play.
> 
> [snip]
> 
>      More total Watts of light power are needed to produce the
>      same brightness of a larger diffuser. More than 4 LEDs will
>      be needed to make a MF viewer as bright as the twin 35mm
>      viewer.
> 
> I think I understand now. Thanks.
> 
> So Tom Hubin's LED/condensor lighting
> idea could work for MF but you'd pay
> the price for bigger condenser lenses
> etc.
> 
> Greg

Hello Greg,

Just letting you know that I am now on the MF3D list. I'll be following
the thread on LED illumination for slide viewers with interest.

Tom Hubin
thubin@xxxxxxxxx