Do you remember the "old" days (2007 in my case
) when the only electricity was in the torch in your pocket and perhaps the battery pack operating the cooling fan for a while around sunset! And we did everything by feel - change eyepieces, add filters. The "good old days"! Well, actually not so good when the secondary and the eyepieces all dewed-up (or iced-up by 11pm in the case of July in Snake Valley!
) And the sky was so dark you couldn't see the non-illuminated cross hairs in the finderscope! When out by myself, I used to like vanishing in the dark, unseen from a few metres - black car, black coat etc. Now I sometimes look like a Christmas Tree with red and green lights (and blue - dang Bingpond dongle!
) and need a huge gel battery to power it all! I'm gradually working through the lighting to remove them or substantially reduce their intensity. I work at somewhere around 5% brightness on the Argo.