Members of the Royal Family should be careful about selling pictures of their children to magazines, according to commentator Robert Jobson.
He says that he was not surprised at interest in the first photos of Zara Phillips and Mike Tindall's first child Mia Grace being picked up by Hello! magazine.
A reported £100,000 changed hands for pictures of Mia, lying in front of her parents in a white striped babygro.
Jobson said there is the risk of critics screaming double-standards: "At the moment the Royal Family is great currency, they think it shifts magazines and that's what it's all about here. The fact is it is dangerous because the royal family at this moment in time are complaining about breaches of their privacy.
"They squeal very loudly if they feel that privacy has been breached and if you've got a member of the royal family albeit someone who is semi-detached like Zara cashing in and making large sums of money then it does sort of dillute their argument," he added.
In 2008, Zara's brother Peter Phillips was criticised after selling photos of his wedding to Canadian bride Autumn Kelly to Hello! and reportedly receiving £500,000 in return.
At the time Liberal Democrat MP Norman Lamb described the move "a serious error of judgment" that "smacks rather of greed".