Camera for Product photography?

I'm in the market to buy a new camera. I'm really clueless about cameras and photography. But I run a small online store and I want to improve on my product photography. I've been using my old Canon 450D and would like to upgrade into a mirror-less camera such as Olympus.

I'm interested in cameras like Olympus because it's compact and lighter than heavy duty DSLR camera such as nikon or cannon. Do you reckon Olympus will be good for product photography? Because I'm only taking photos of 40-60cm objects. Seems like Olympus is really good at landscape photography because of the art filters but I don't know if it's something commonly used for product. Would it be the same as other cameras because it is only a matter of lenses?

Any input or suggestions?

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