I found this sentence and I don't know how the grammar works here:

俺たちを見ての反応。

Why is the verb in its て form? and is it different from saying "俺たちを見た反応"?
CC BY-SA 4.0
2021-08-23T01:28:34.247
89003
2021-08-23T01:48:36.117
42280
question
grammar nuances て-form
How does 見ての work here?