Mamiya 211125, 645 AF manual Average Exposure Metering Mode a, Spot Exposure Metering Mode S

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Average Exposure Metering Mode (A)

(Set the exposure metering mode selector lever to "A".)

The average light of the entire picture area is measured, with emphasis on the center.

Spot Exposure Metering Mode (S)

(Set the exposure metering mode selector lever to "S".)

The light in the circle at the center of the picture area is measured to determine the exposure. This mode is best suited for strongly backlit subjects, or when you desire to measure a specific area. When the spot you want to measure is not at the center of the picture, use the AE lock function. (See pages 57-58 AE Lock Mode.)

Average/Spot Auto Switching Exposure Metering Mode (A-S AUTO)

(Set the exposure metering mode selector lever to "A-S".)

With the A-S metering mode, average or spot expo- sure metering is selected automatically and the appropriate exposure is set accordingly.

The spot mode is selected automatically when the brightness within the spot metering area is lower than the brightness of the average metering area by about

1.5EV or greater. The average mode is selected when the spot exposure metering value is the same or brighter than the average value. When the difference between the spot value and average value is between 0.75 and 1.5 EV, the appropriate exposure is achieved at an intermediate value.

•lf a polarizing filter is necessary, use a circular polarizing filter. A linear polariz- ing filter is not compatible with the Mamiya 645 AF and its operations.

Exposure Compensation

In some situations, such as a great difference between the subject and background brightness or overall subject tones that will not meter correctly because they are all black or white, the resulting photograph may be under- or overexposed. When this occurs, use the exposure compensation function. Exposure compensation can also be used when you want to intentionally create overexposed or underexposed pictures.

Turn the exposure compensation dial while pressing the exposure compensation dial lock release button “A” located on the right side of the viewfinder. The exposure can be adjusted within a range of ±3 EV in 1/3 steps.

Be sure to set the exposure compensation dial back to the "0" position once you are finished taking photos with exposure compensation.

Display of the exposure compensation in

the viewfinder's LCD panel

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Contents Page Special Advice To Professional Photographers Congratulations on your purchase of the Mamiya 645 AF CameraNames of Parts and Functions Main Liquid Crystal Display LCD Magazine LCDContents 48 ~53 54 ~6970 ~86 Checking the Battery Power Be sure the batteries are placed with proper polarityAfter inserting the batteries, set the date and time. See Amount of film that can be taken with one set of batteriesDiopter Adjustment Replacing the diopter corrected lensAttaching/Removing the Lens Attaching RemovingAttaching the lens Installing the Battery in the Magazine Setting the Film SpeedShutter Safety Retraction Attaching/Detaching the MagazineAttaching DetachingWhen the pressure plate 120/220 is set erroneously Loading Film in the MagazineShutter Release Button/Holding the Camera Shutter Release ButtonHolding the Camera Insert the loaded film insert into MagazineTaking Photos in the Full Automatic Mode Precautions for Film Unloading FocusUnloading the exposed film Removing a partially exposed film roll Exposure filmSingle Focus Mode S Manual Focus Mode MContinuous Focus Mode C Set the focus mode selector lever To M manual focus modeSubjects With Which Auto Focusing May Not Work Using the Focus Lock Function AF Supplemental Infrared LightCamera Operation Test Open the back coverLector lever to S to turn Program AE P Shifting the ProgramAperture Priority AE Manual Mode M Shutter Priority AETime Mode T ModeAverage Exposure Metering Mode a Spot Exposure Metering Mode SAverage/Spot Auto Switching Exposure Metering Mode A-S Auto Display of the exposure compensation Viewfinders LCD panelSingle-Frame Mode/Continuous Mode Single-Frame ModeContinuous Mode Auto Bracketing Mode Automatic exposure operation in the auto bracketing modeMultiple Exposure Mode Canceling the Multiple Exposure ModeSelf Timer Mode Bulb Mode Time ModeExtended Exposure Modes Bulb and Time Modes AE Lock Mode How to meter and focus at two different distancesUsing auto focus and auto exposure Manual modeTaking Photos with the Mirror Up Depth of field Infrared PhotographyFlash Photography Metz Flash SCA3951 System FunctionsFor example Depth of Field Preview/Eyepiece Shutter Flash Photography with Flashes other than MetzDepth of Field Preview Button Eyepiece ShutterChanging The Focusing Screen Using the M645 Manual Focus LensesExternal Power Supply Electronic Dial Operations Front/Rear Dial Lock Mechanisms select dLocSetting the Date and Time Setting the Index NumberSelecting the Data to be Superimposed select Func Checking the data to be superimposedData superimpose modes Error Messages Returning to the normal displayStrap/Using a Tripod/Auxiliary Release Contact Using a TripodIf the shutter cannot be released StrapSpecifications of 645AF Importance of Proper Maintenance Common Sense Camera Care and PracticeBatteries Care After-Sale Servicing Liquid Crystal Display
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