Pentax MX
Introduced: 1976 Discontinued: 1985

Pentax MX is the compact mechanical Pentax SLR — in production 1976-1985, conceptually paired with the ME (electronic AE) as Pentax's compact-SLR offering. The MX is significantly smaller and lighter than the K1000 with refined controls and an LED viewfinder display, while retaining mechanical shutter operation and battery-independence.
Key features
- Pentax K bayonet
- Mechanical horizontal cloth shutter — 1s to 1/1000 + B
- LED viewfinder display (over/under indicators)
- Manual exposure only
- Battery-independent for shutter; battery for meter only
- Compact body — 495g; smaller than K1000 (620g)
Practical notes
- MX bodies on used market: $200-400 working examples
- Often considered the photographer's MX — refined controls + mechanical reliability
- Compatible with all Pentax K-mount lenses
Related cameras
- Pentax K1000 — simpler K-mount alternative
- Pentax ME Super — AE sibling
- Pentax LX — pro-grade K-mount
- Nikon FM2 — competitor mechanical compact
Native lenses
Compatible with all Pentax K-mount lenses including SMC Pentax-M and SMC Pentax-A primes