No, the mirror reflects to the view finder untill you press the shutter, then it moves thr mirror to expose the photo sensor and then back.

If it’s a moving mirror camera* and it’s used to take stills it’s probably fine, as the sensor is only exposed for a fraction of a second per image.
If you want to film with it or put it in a phone, where it’s exposed all the time, it would certainly not be enough.

* I have no clue what they are called in english

It’s crossposted from there.

2 miles? I almost biked that far to my primary school.

If you need to transport stuff, just get bags, that fit on the side if your bike.