Camp, 29, who is yet to play for the Baggies, is likely to make his Cherries debut against Bolton on Saturday.
"It wasn't a tough decision," Camp told BBC Radio Solent.
"My position at West Brom is a supportive role. I went into the club knowing that, however, you still get frustrated and Saturdays are difficult watching the results come in.
"As soon as I heard, I knew a bit about the club, a lot about the manager and it was a no brainer. As soon as I found out it was a yes."
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