Want to Sell used Cameras

I have 3-4 cameras (still & video), all bought in Japan about 15 years back. I am traveling to Tokyo this summer for a week. I am wondering if I can sell my old cameras and get a new one. Any lead as to how/ where I can do that?

Some of the used shops may take your old gear, however it seems that some may require proof of residency. Try Map Camera in Shinjuku, their website implies that you can sell with just a passport

https://www.mapcamera.com/html/worldguide/english_page.html

Keep in mind though, unless they are collectible cameras then it probably won't be worth the luggage space for the money that they'll bring in. You can research the buy prices on their websites.