A wifi network that functions independent but utilized by 2nd network?

Can I to setup a wifi network that functions independent of my home network? Something I can connect to, manage and utilize with the devices on my home network, but not have its data spillingover and slowing down my home network?

The reason for me wanting to do this is:

I would like to keep camera traffic off my home network. So, I’m considering setting up two PoE dome cameras on a separate WIFI network with a Synology NAS. I'm thinking I can (somehow =bridge or something else) connect to the network and monitor it without having the traffic spill over to my main home network.

Here is the equipment I'm thinking of using:

-Synology DS216
-Cisco WAP4410N Wireless-N PoE router
-Two Crucial 250GB SSD drives for the NAS
-One Outdoor IP PoE dome camera and one indoor wifi camera

Anyone have any input, advice, how to do this or improvements?

Any input?

:)