During a hike with family in the nature reserve of Königsbrücker Heide, northeast of Dresden, Saxony, we came across these two butterflies that were very busy with each other. I believe these are Aporia crataegi (Black-veined White / German: Baum-Weißling).
I didn’t take any other lens than the Nikkor Z 24-70mm f4 S with me, so I shot this at 70mm und cropped it quite a bit in post process.