Nikon's refined advanced AF SLR — the F-90x, electronic, 1/8000s, faster AF, Nikon F, 1994.
The Nikon F-90x, introduced in 1994, was a refined version of the F-90 with faster and more reliable autofocus and a higher frame rate. It was sold as the N90s in the United States. It belonged to Nikon's advanced autofocus range of the mid-1990s and used the Nikon F bayonet mount, part of the long-lived Nikon lens system.
This is an electronically controlled 35mm SLR on the Nikon F mount, with a vertical-travel focal-plane shutter that is electronically timed, offering speeds to 1/8000 second plus B, with flash sync around 1/250. Metering includes matrix, centre-weighted and spot patterns; exposure modes include programmed, aperture-priority, shutter-priority and manual. It provides improved phase-detection autofocus over the F-90 and integral film advance at a higher speed. As an electronic body it depends on batteries to operate.
The F-90x suits enthusiasts and semi-professionals wanting quicker, more consistent autofocus and full metering in a robust body. It handles as a serious tool, with fast control access and support for data backs and flash. It works with AF Nikkor lenses across varied work and served many professionals as a lighter alternative to the flagship line.
On the used market, being fully electronic, it needs good batteries, so test AF, the meter and all exposure modes. Check shutter accuracy across the wide range, inspect the LCD for bleed, and look for perished light-seal and mirror-damper foam. As with the F-90, the rear grip rubber can turn sticky with age. Try loading and rewind. It uses standard cells rather than mercury batteries. AF Nikkor lenses autofocus; manual AI-S lenses meter with reduced support.