[Klaus]

Never been to Japan, if klaus is going to be shooting cityscapes and huge buildings yes an ultrawide is needed, however outside the city, the extra reach of 12-100 and having just one lens is extremely handy

Nah, it‘ll be about temples, shrines, gardens and nature (Kyoto, Nara, Koyasan, Kumano Kodo). We‘ll be in Osaka for a day but that‘s about in regarding modern Japan.

Technically this translates to:
- dark places (temples) -> Dual IS will come handy
- neat details (shallow DoF)
- architecture & landscape -> at least 24mm

Not so much:
- long tele (>150mm)