In June 2023 I got a cheap Nikon D3 for documenting a series of relatively rare vacuum tubes (starting with the 6CS7 family) for the Swiss Radiomuseum and Wikipedia.
The project reignited my interest in (visual) art, leading to a number of photo series—perhaps a few too many (see an overview here).
In December, I treated myself to an early Christmas present: a Nikon D4.
Below are my first three shots with the Nikon D4, which I bought used on MPB with a shutter count of just under 190,000.
One is from Enghaveparken in Vesterbro, Copenhagen, Denmark which was shrouded in fog on an early evening.
The second is a of a single Harbeth loudspeaker.
The last photos, so far, are of a Russian 5U3C rectifier tube produced by Svetlana in 1976 for use in a preamplifier project, on the one hand, and the same tube mounted in the preamplifer on the other hand.
Harbeth M30.1 Loudspeaker

Kondo Audio Note KSL-M7 Clone
