Recommend several cost-effective macro card machines for shooting ornamental fish.

At 3K, Nikon P7 100,11.7 inch sensor and 7. 1 zoom light are recommended, and Nikon consumes flagship machine. Macro can be 2 cm. The price in JD.COM is 2999.

Don't look at anything else, there is nothing better within 3000.

Nikon J1(VR10-30/3.5-5.6) single motor is also good, JD.COM price is 2999. The sensor is big, but the lens light of the camera changes only three times, which is not enough unless you pay for the lens again.