Use Time machine to back up data from one external drive to another

I keep my entire archive of digital photogarphy (700 gb) in a folder on an external drive. I want to duplicate that folder on another external drive and use Time Machine to automatically synch and add new photos to this back up folder on another drive.
My questions are:
Can Time Machine do this?
If not, then what could I use to do this?

If both are attached to the computer, you might be able to do that using a clone program that can regularly schedule backups. Many have free demo modes.
Clone  - Carbon Copy Cloner          (Often recommended as it has more features than some others)
Clone – Data Backup
Clone – Deja Vu
Clone  - SuperDuper
Clone - Synk
Clone Software – 6 Applications Tested

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