I headed to the Chabot Space & Science Center with the light lens, a 35-70mm f/3.3-4.5 Nikkor zoom that I had bought about 20 years ago. This small, plastic wonder was a delight to use since it was light and svelte, unlike its beastly f/2.8 cousins. Indoors, no flash, and letting auto ISO take care of whatever needs to be done. Not bad for ISO 4000.
Nikon D800, AF Zoom-Nikkor 35-70mm f/3.3-4.5 N, ISO 4000, 70 mm, f/4.5, 1/200