Interesting to see so many non-feminists here expounding on what feminists supposedly believe. Feminists don't believe women are naïve, stupid, bimbos, unknowing, passive etc. FFS! Quite the opposite.
"I think that women making their own decisions at whatever level of knowledge, (approved of by some feminists or not) is part of what feminism should be allowing and encouraging."
This is actually the strand of feminism that currently gets the most airtime so you can't be looking very hard if you think this view is not represented in feminism.
However there are also feminists who believe that choice in and of itself is not a particularly worthwhile goal. There are feminists who believe that feminism seeks to end the liberation of women as a class from oppression. There are also differing views among philosophers (feminist or not) about whether choice is a valid concept for human interaction given that it is constrained by the options available to us, our ability to make rational or good choices and the influence of societal expectations and norms on the choices we make.
In the case of the Warwick calendar, I have not seen any feminists arguing that these women did not make a choice or that they are stupid and uninformed (only the non-feminists are saying that). However, I believe that not every choice a woman makes is a pro-feminist choice nor that it is something that feminists have to support. For example:
www.theonion.com/articles/women-now-empowered-by-everything-a-woman-does,1398/?ref=auto
Some choices women make perpetuate the position of women as a class as the decorative sex class. The women in the Warwick calendar may not understand this argument but equally they may understand and not agree or understand and not care. I don't know them so I couldn't say.
When firemen make a semi-naked (rarely naked) calendar, they are subverting societal expectations because they are men who are valued for their actions and contributions to society being presented as decorative objects - hilarious right? It is ironic to present them as objects for viewing and there is often a humourous element in the poses. When the original WI "calendar girls" made their calendar, it was ironic and even subversive because they were old and WI. Old women's faces (let alone their bodies) are rarely presented in publications. What this Warwick calendar is doing is nothing different than page 3, lads mags or porn - presenting women's bodies for public male consumption for money. This perpetuates the objectification of women as a class as being assessed based on their appeal to men - and any of you who might be thinking that I am just jealous of how they look are proving my point.