Deep pantry cupboard ideas

[Embracelife]

I have moved into flat (1950s) with useful tall pantry cupboard but very deep shelves 80 cm so everything disappears to the back. You can't see what is behind. About 60 cm wide shelves and at very top narrow shelving around the edges wide enough for tins perhaps
Ideas?

Turntables?
Some kind of slide out contraption (rented so I cznt permanently fix)

Watching as same problem. I've seen kind of mini stairs you can get.

like these

Would it work to take the shelves out and have shallower shelves on two sides, so you could stand inside the cupboard and reach both sides?

I would try a large lazy Susan or the plastic underbed storage boxes.