The Sony a7C II refreshes the compact full-frame with a 33MP sensor, the addition of a front control dial, a dedicated 'AI' processor, 10-bit 4K/60p video and more. It's a definite improvement, but it helps if you value its compact form.
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RUMOR: New Sony A7c: yes it has a 24MP sensor and comes with a new compact pancake zoom kit lens – sonyalpharumors