Nikon's first in-house pro DSLR — the D1, 2.7MP APS-C, F mount, 1999.
The Nikon D1, released in 1999, was Nikon's first in-house professional digital SLR and a body that helped move press and sports photographers from film to digital. It sat at the top of Nikon's line and was priced far below the digital backs professionals had used previously, broadening access to professional digital capture.
This is a professional digital SLR built on a rugged body with an integrated vertical grip, taking Nikon F-mount lenses. It uses an APS-C sized sensor of roughly 2.7 megapixels and focuses through an optical pentaprism viewfinder. Continuous shooting reaches around 4.5 frames per second. It is a stills-only body from the earliest era of professional digital, with no video capability.
The D1 was aimed at news, sports and reportage photographers who needed digital speed and F-mount compatibility with existing Nikkor lenses. The APS-C sensor applies a crop to F-mount optics, extending telephoto reach useful for sports. Handling follows Nikon's professional pattern with a vertical grip for portrait-orientation shooting during long assignments.
As a first-generation professional DSLR, this body is now old: request the shutter actuation count against a professional-class rated life, and expect resale to lean budget or collector interest. Inspect the sensor for dust and marks, test the small rear screen for dead pixels, and check the card and battery doors. The EN-4 nickel battery and its charger are scarce, so confirm a working power solution is included.