Azure/Bing Image Search API: How do I add multiple image filters?
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I'm trying to only return images that are Style:Photo **and** Aspect:Tall.

I can only seem to search for one ImageFilters parameter, like this:

    https://api.datamarket.azure.com/Bing/Search/Image?Query='Houses'&$format=JSON&ImageFilters='Style:Photo'&Market='en-us'

The important part:

    &ImageFilters='Style:Photo'

If I try to add another one, like this:

    ImageFilters='Style:Photo'+'Aspect:Tall'

I get this error:

    Parameter: ImageFilters has an invalid pattern of characters

Any ideas?
