Many Leica aficionados are critical of the M4-2 and M4-P because they were a departure from the watch-like mechanics of previous M models, like the M1, M2, M3, and M4. Leica M4-P and M4-2's were built in Midland, Canada, a cost saving measure by Leica during a difficult financial time, following the disastrous introduction of the M-5. 72 magnification frames found in the Leica M6, and available on the M7, The 28mm and 75mm frames were added for these newer lenses.
It was the successor to the M4-2, and the main difference was a six-position rangefinder lever that allowed use of the 28/35/50/75/90/135 lenses by sharing the following frame combinations: 35/135mm, 50/75mm, and 28/90mm. Leica's M4-P is a critically acclaimed rangefinder camera built from 1980 to 1986, and carried serial numbers from 1543351 to 1692950.
