LEICA M6 Rangefinder Camera - Manual (Page 46)

TECHNICAL DATA 46
Shutter button Shutter button
Two-stage
(Step 1: activation of the camera electronics including exposure metering,
Step 2: taking the shot)
Integrated standard thread for cable release
ADVANCING THE FILM
Advance
Advance
Manually with quick action lever or Leicavit-M (optional accessory) or
motor-driven with Leica Motor-M, Leica Winder-M, Leica Winder M4-P,
or Leica Winder M4-2
Rewind Rewind
Manually with rewind crank after flipping the R lever on the front of the
camera
Exposure counter Exposure counter
On the top of the camera
Automatic reset after removal of the bottom cover
FOCUSING
Working range
Working range
70 cm to ∞
Focus Mode Focus Mode
Manual
EXPOSURE
Exposure metering
Exposure metering
TTL (exposure metering through the lens), with working aperture
Measuring cell Measuring cell
Silicone photodiode with converging lens at the top left behind the bayonet
of the camera
Film sensitivity range Film sensitivity range
Manual settings between ISO 6/9° and ISO 6400/39°.
Metering principle Metering principle
Measurement of light reflected by the metering dot in the middle of the
1st shutter curtain
Diameter of the metering dot: 12 mm (equal to approx. 13% of the full
negative format or around 2/3 of the short side of the relevant bright-
line frame in the rangefinder)
Measuring range Measuring range
Flashing left triangular LED in the viewfinder indicates values below the
measuring range
Exposure modes Exposure modes
Manual settings for shutter speed, aperture, and ISO sensitivity
Calibration via LED light balance
FLASH EXPOSURE CONTROL
Flash unit connector
Flash unit connector
Via the accessory shoe with center contact and via synch port
Synchronization Synchronization
On the 1st shutter curtain
Flash sync time Flash sync time
f=1/50 s, slower shutter speeds available
Flash exposure metering Flash exposure metering
By way of computer control of the flash unit, or using a guide number
calculation and manual setting of the required aperture
POWER SUPPLY
Two silver oxide coin battery (PX76/SR 44) or one lithium cell (DL1/3N)
At room temperature and 14 s metering time per shot, a set of fresh
batteries will last for around 100 films with 36 exposures each, which
makes for approx. 3600 shots (according to Leica test standards).