The Nikon D610 is a prosumer-level full-frame DSLR and an update to the D600. Key features include:
24.2MP FX CMOS sensor
Normal ISO range of 100-6,400, expandable to 50-25,600
39-point autofocus system
Full HD video capture
Upgrades From D600. The D610 is essentially the D600’s slightly taller twin sibling. Its only “official” differences are a newly designed shutter mechanism that increases maximum frames per second from 5.5 to 6, the addition of a 3 fps quiet continuous mode, and an updated white-balance system. While these are good things to have, this camera was most likely released to resolve the widely reported D600 dust issues.
24.3MP FX CMOS Sensor. The full-frame sensor with Nikon’s advanced EXPEED 3 image processor provides high-resolution images with accurate color reproduction, rich tonality, and large dynamic range. It offers very good high ISO performance, with a normal range of 100-6,400 (expandable to 50-25,600).
Multi-CAM 4800 Autofocus Sensor. Using the Nikon D7000’s autofocus system, the D610 gives shooters 39 AF points to select from. It has a 6 fps maximum continuous frame rate with autofocus capability all the way to f/8, making teleconverter users feel right at home.
HD Video. The D610 shoots 1080P full HD at 24, 25, and 30 fps, outputting footage in a friendly .MOV file with h.264 compression. For those who demand higher quality footage, the D610’s HDMI input also provides clean, uncompressed video, allowing the use of a high-end external recorder. Also featured is both a 3.5mm mic input, as well as 3.5mm headphone jack, allowing high-quality audio recording and monitoring while shooting.
Durable Build. Despite its small size, the D610 sports a lightweight yet rugged magnesium alloy body. The camera features a large viewfinder and still retains a built-in pop-up flash that’s compatible with the Nikon CLS system. The large 3.2" 921K rear LCD makes image review and live view shooting very visually pleasing. Additionally, there’s a built-in intervalometer enables in-camera time-lapse photography. The camera has two SD memory card slots that are compatible with a wide range of SDHC/XC cards, allowing uninterrupted shooting even after one card fills. The D610 uses the same EN-EL15 rechargeable lithium battery as the D7000/D800, and is rated at 900 shots per charge.