Fork mounts are great for visual but to use them for photography you will need some sort of wedge to turn it into a pseudo equatorial mount. Without that all your image will rotate very quickly. If you intend to do imaging then an equatorial mount will be your best choice.
Don't expect wonders with the CG-5 mount though as IMO it is extremely undersize to carry a C11 for visual work, let alone photographic. Consider getting the C11 as OTA only and mounting it on an EQ6 or a CGE
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