Technical data from Leica factory web site.

The LEICA MP, Catalogue number Silver : 10 301 , Black : 10 302.    
Compact 35 mm rangefinder system camera with mechanically controlled shutter.
Leica M bayonet mount. Lens system Leica M lenses from 21-135 mm.
Viewfinder principle Large, bright line frame viewfinder with automatic parallax compensation. Viewfinder optical
system with reduced stray light sensitivity and optimum visibility of all bright line frames. Eyepiece Calibrated to –0.5 dpt. Correction lenses from –3 to +3 diopter available. Bright line frames activated in pairs: for 28 and 90 mm, 35 and 135 mm or 50 and 75 mm. Automatically displayed when the lens is mounted. The preview selector can be used to display each of the pairs of frames. Alternative bright line frame configurations are available as part of the Leica a la carte range.
Parallax compensation The horizontal and vertical difference between the viewfinder and the lens is automatically compensated in line with the current distance setting, i.e. the bright line frame in the viewfinder automatically covers the section of the subject that will be captured by the lens.
Correlation between viewfinder and film images At the shortest possible distance setting for each focal length, the bright line frame size corresponds to an image size of approx. 23 x 35 mm. When set to infinity, depending on the focal length between 9% (28mm) and 23% (135 mm) more is captured by the film than is shown in the corresponding bright line frame.
Magnification 0.72x (for all lenses). Alternative viewfinder magnifications of 0.85x and 0.58x are available as part of the Leica a la carte range.
Wide-base rangefinder Split and superposed-image ranger finder displayed as a bright field in the centre of the viewfinder image. Effective measuring basis 49.9 mm (mechanical measuring basis 69.25 mm x viewfinder magnification 0.72x). For the alternative viewfinder magnifications of 0.85x and 0.58x available as part of the Leica a la carte range, it is 58.9 mm (mechanical measuring basis 69.25 mm x viewfinder magnification 0.85x) and 40.2 mm (mechanical measuring basis 69.25 mm x viewfinder magnification 0.58x) respectively.

For illustration a Leica MP in black lack with respective LEICAVIT-M black lack and with a SUMMILUX-M 1.4/35mm lens on original carton box and instructions for use booklet

Exposure metering through the lens (TTL), selectively with working aperture.
Metering principle The light reflected by a metering spot in the center of the first shutter curtain. The metering spot has a diameter of 12 mm and thus corresponds to approx. 13% of the full film format or approx. 2/3 of the short side of the applicable bright line frame in the viewfinder.
Metering range (for ISO 100/21°) From 0.03 to 125000 cd/m2 at room temperature, normal humidity and f/1.0. For ISO 100/21° this corresponds to EV-2 to 20 or f/1 and 4s (B setting) to f/32 and 1/1000s.
Flashing of the left-hand triangular LED in the viewfinder indicates that the brightness reflected is below the metering range.
Metering cell Silicon photodiode with focusing lens to the top left behind the bayonet.
Manual shutter speed and aperture setting and adjustment using LED light balance.
Manual setting from ISO 6/9 to ISO 6400/39°.
LED symbol for battery status.
LED light balance with two triangular LEDs and a central circular
LED to adjust the exposure
Underexposure of at least one stop
Underexposure of 1 ⁄ 2 stop
Correct exposure
Overexposure of 1 ⁄ 2 stop
Overexposure of at least one stopTriangular LEDs give the required direction to rotate the aperture dial. The LEDs flash to warn that the brightness reading is above or below the metering range.
Using accessory hotshoe with center contact and / or standard flash connector socket.= 1/50s; slower shutter speeds can be used with 1st shutter curtain.
Separate computer control of flash unit or guide number calculation and manual setting of required aperture.
On LEICA SF 20 / SF 24D, +/- 3EV in 1/3 EV increments or from 0 to –3 EV in 1EV increments with computer control. Rubberized cloth focal plane shutter with horizontal movement; extremely quiet. Mechanically controlled from 1s to 1/1000s in whole increments.
B for very long exposures of any duration, (1/50s) for flash synchronization.
Two stage: Power up (activate exposure meter) – Release Standard thread for cable release integrated.
Loading : Manual film loading after opening base plate and rear panel. Advance Manually with quick wind lever or LEICAVIT M or motorized using LEICA MOTOR M, LEICA WINDER-M, LEICA WINDER M4-P or LEICA WINDER M4-2 (from serial no. 10350).
Rewind Manually with extending rewind button (rewind crank available as part of Leica a la carte range and attachable rewind crank available as an accessory).  Frame counter On top of camera. Automatic reset after removing base plate. Material Enclosed all metal body with hinged rear panel. Brass top and base plate. Silver chrome finish or black lacquered.
Tripod thread A 1/4 (1/4") DIN in base plate. (Only necessary for exposure metering and display) 3V from 2 silver oxide button cells, type PX 76 / SR 44 or from 1 lithium cell, type DL 1/3 N. Battery monitoring by an illumination of battery warning display with light balance LEDs (1st level), light balance LEDs going out (2nd level) or all LEDs going out.
Dim : Approx. 138 mm x 77 mm x 38 mm Weight : Approx. 585 g