The arrival of the 24MP D7100 comes two-and-a-half years after the announcement of its predecessor theD7000, and it’s a pretty serious upgrade. Significantly, Nikon Europe’s presentation of the camera describes the D7100 as the company’s ‘flagship DX model’, and omitted mention of the D300S in the company’s DSLR lineup. Certainly, the gap between the D7100 and D600 now leaves little obvious room for a ‘D400.’
It was only a matter of time before 24MP resolution became standard across Nikon’s entire range of DX-format APS-C DSLRs, and lo and behold – the 24MP D7100 is the latest in the series, but this isn’t just the sensor from a D5200 packaged a newer body. In fact, this would be a fundamental misunderstanding of the new camera.
The critical thing here is that despite the fact that the D7100 is Nikon’s third DX-format 24MP DSLR, its sensor is new, and unique in Nikon’s stable. In a first for Nikon, the D7100’s sensor lacks an optical low-pass filter (OLPF). The D800E, Nikon’s highest-resolution DSLR has the effect of its OLPF ‘cancelled out’, but the D7100, like the Pentax K-5 IIs, omits it altogether. The result should be higher resolution than is possible from the conventional 24MP sensors in the D5200 and D3200, and Nikon clearly feels comfortable with the associated higher risk of moiré in fine patterns – one of the few black marks against the 36MP D800E when we tested it last year. Read more here