We make extensive use of xrays and nuclear magnetic resonance imaging for medical purposes. We send robots to mars, to report what we cannot ourselves perceive. It seems to me that we are not entirely trapped by our perceptions.
Yes, I agree. But these tools basically "translate" data into something we can input using one of our five senses. They turn things into images, or numbers, or digital information.
Further, all of the technologies you mentioned deal with things that are phisicaly interactive. You can touch, hear and see these things. My answer traditionaly would be "Of course, 'REAL' things can be seen, heard, smelled, or interacted with physicaly (touch) on some level.", but isn't that the kicker? It seems that what we define as 'REAL' is that which we can percive.
Does that mean there could possibly be something else outside of our perception? Are there boundaries to what we CAN percive?