The Nikkormat EL is Nikon's first electronically controlled SLR, launched in 1972 under the Nikkormat sub-brand. It brought aperture-priority automation to the F-mount system years before the Nikon FE arrived, in a heavyweight all-metal body built to Nikkormat standards.
It uses a vertical Copal Square metal shutter with stepless electronic speeds from 4s to 1/1000s and 1/125s flash sync, centre-weighted TTL metering with a match-needle display, and pre-AI prong coupling; power comes from a single 6V PX28-type cell under the mirror box floor.
ELs are common and undervalued in the UK, typically £50-120 body-only, well below an FE2 or FM2. Many listings are body-only house-clearance finds, and confusion between EL, EL2 and the other Nikkormat names means clean, working examples often go cheaply.
The 6V battery hides under the mirror box floor; lock the mirror up to change it, and test with a fresh cell before writing off a dead example. Check every electronic speed fires and the needle tracks light, and note metering needs lenses with the rabbit-ear prong.