Our MM-SLR adapter is best suited for full frame DSLRs, and is a universal adapter with respect to the microscope. For APS-C crop-sensor DSLRs, the MM16-C is a similar universal adapter, but we also have other MM16 and MDSLR adapters for specific microscope types. Sort by microscope brand below, or contact us if you need help choosing the right adapter for your camera and microscope(s).