but then

Conjunction

idiomatic

(idiomatic) then again, on the other hand; used to show that the opposite viewpoint is possible.

Japanese Meaning

でも、その一方で / しかしながら、逆の見方もできる / 一方で / だが、反対の観点で言えば

I was tempted to buy the expensive camera, but then I remembered I hadn't saved enough to cover rent.

高価なカメラを買いたい気持ちはあったが、とはいえ家賃を払うための貯金が十分にないことを思い出した。

Sense（1）

(idiomatic) then again, on the other hand; used to show that the opposite viewpoint is possible.

He may finish writing his novel next year; but then, he may never finish.